Board of Governors of the Federal Reserve System

Abstract:

An economic agent who is uncertain of her economic model learns, and this learning is sensitive to the presence of data measurement error. I investigate this idea in an existing framework that describes the Federal Reserve's role in U.S. inflation. This framework successfully fits the observed inflation to optimal policy, but fails to motivate the optimal policy by the perceived Philips curve trade-off between inflation and unemployment. I modify the framework to account for data uncertainty calibrated to the actual size of data revisions. The modified framework ameliorates the existing problems by adding sluggishness to the Federal Reserve's learning: the key point is that the data uncertainty is amplified by the nonlinearity induced by learning. Consequently there is an explanation for the rise and fall in inflation: the concurrent rise and fall in the perceived Philips curve trade-off.

Keywords: Data uncertainty, data revisions, real time data, optimal control, parameter uncertainty, learning, extended Kalman filter, Markov-chain Monte Carlo

Abstract:

A country entering the EMU surrenders its monetary policy, and its debt becomes denominated in terms of a currency over which it has no direct control. A country's promise to uphold the fiscal limits in the Maastricht Treaty and the Stability and Growth Pact is implicitly a promise not to allow its fiscal stance to deteriorate to a position in which it places pressure on the central bank to forgo its price level target to finance fiscal deficits. Violation of these limits has raised questions about potential fiscal encroachment on the monetary authority's freedom to determine the price level. We specify a simple model of fiscal policy in which the fiscal authority faces an upper bound on the size of its primary surplus. Policy is determined by a fiscal rule, specified as an error correction model, in which the primary surplus responds to debt and a target variable. We show that for the monetary authority to have the freedom to control price, the primary surplus must respond strongly enough to lagged debt. Using panel techniques that allow for unit roots and for heterogeneity and cross-sectional dependence across countries, we estimate the coefficients of the error correction model for the primary surplus in a panel of ten EMU countries over the period 1970-2006. The group mean estimate for the coefficient on lagged debt is consistent with the hypothesis that the monetary authority can control the price level in the EMU, independent of fiscal influence.

Keywords: European Monetary Union, monetary policy, fiscal policy, Fiscal Theory of the Price Level, panel cointegration, error correction

Abstract:

This paper shows that the quantitative predictions of a DSGE model with an endogenous collateral constraint are consistent with key features of the emerging markets' Sudden Stops. Business cycle dynamics produce periods of expansion during which the ratio of debt to asset values raises enough to trigger the constraint. This sets in motion a deflation of Tobin's Q driven by Irving Fisher's debt-deflation mechanism, which causes a spiraling decline in credit access and in the price and quantity of collateral assets. Output and factor allocations decline because the collateral constraint limits access to working capital financing. This credit constraint induces significant amplification and asymmetry in the responses of macro-aggregates to shocks. Because of precautionary saving, Sudden Stops are low probability events nested within normal cycles in the long run.

Keywords: Sudden stops, debt inflation, financial crises, collateral constraints, leverage

Abstract:

Robustness and fragility in Leamer's sense are defined with respect to a particular coefficient over a class of models. This paper shows that inclusion of the data generation process in that class of models is neither necessary nor sufficient for robustness. This result holds even if the properly specified model has well-determined, statistically significant coefficients. The encompassing principle explains how this result can occur. Encompassing also provides a link to a more common-sense notion of robustness, which is still a desirable property empirically; and encompassing clarifies recent discussion on model averaging and the pooling of forecasts.

Related Material: Data (107 KB ZIP), Data and empirical results

Keywords: Encompassing, exogeneity, extreme bounds analysis, model averaging, parameter nonconstancy, pooling of forecasts, robustness, regime shifts, sensitivity analysis

Abstract:

Although computers are universal in the classroom, nearly twenty million children in the United States do not have computers in their homes. Surprisingly, only a few previous studies explore the role of home computers in the educational process. Home computers might be very useful for completing school assignments, but they might also represent a distraction for teenagers. We use several identification strategies and panel data from the two main U.S. datasets that include recent information on computer ownership among children--the 2000-2003 CPS Computer and Internet Use Supplements (CIUS) matched to the CPS Basic Monthly Files and the National Longitudinal Survey of Youth 1997--to explore the causal relationship between computer ownership and high school graduation and other educational outcomes. Teenagers who have access to home computers are 6 to 8 percentage points more likely to graduate from high school than teenagers who do not have home computers after controlling for individual, parental, and family characteristics. We generally find evidence of positive relationships between home computers and educational outcomes using several identification strategies, including controlling for typically unobservable home environment and extracurricular activities in the NLSY97, fixed effects models, instrumental variables, and including future computer ownership and falsification tests. Home computers may increase high school graduation by reducing non-productive activities, such as truancy and crime, among children in addition to making it easier to complete school assignments.

Keywords: Technology, computers, education

Abstract:

Models that treat innovations to the price of energy as predetermined with respect to U.S. macroeconomic aggregates are widely used in the literature. For example, it is common to order energy prices first in recursively identified VAR models of the transmission of energy price shocks. Since exactly identifying assumptions are inherently untestable, this approach in practice has required an act of faith in the empirical plausibility of the delay restriction used for identification. An alternative view that would invalidate such models is that energy prices respond instantaneously to macroeconomic news, implying that energy prices should be ordered last in recursively identified VAR models. In this paper, we propose a formal test of the identifying assumption that energy prices are predetermined with respect to U.S. macroeconomic aggregates. Our test is based on regressing cumulative changes in daily energy prices on daily news from U.S. macroeconomic data releases. Using a wide range of macroeconomic news, we find no compelling evidence of feedback at daily or monthly horizons, contradicting the view that energy prices respond instantaneously to macroeconomic news and supporting the use of delay restrictions for identification.

Keywords: Oil price, gasoline price, news, identification, impulse responses

Abstract:

In this paper, we test for short and long memory in asset prices across 44 emerging and industrialized economies. Using methodology from Lo and MacKinlay (1988) and Lo (1991), we find that markets with a poor Sharpe ratio are more likely to reject the random walk than better performing markets. We also make a methodological contribution. Contrary to the Baillie (1996) criticism, our long memory analysis suggests that the choice of a truncation lag is not as important as one might initially believe. Tests that reject the null hypothesis tend to do so across any reasonable choice in lag.

Keywords: Random walk, long-range dependence, equities, commodities, exchange rates

Abstract:

This paper estimates the parameters of a stylized dynamic stochastic general equilibrium model using maximum likelihood and Bayesian methods, paying special attention to the issue of weak parameter identification. Given the model and the available data, the posterior estimates of the weakly identified parameters are very sensitive to the choice of priors. We provide a set of tools to diagnose weak identification, which include surface plots of the log-likelihood as a function of two parameters, heat plots of the log-likelihood as a function of three parameters, Monte Carlo simulations using artificial data, and Bayesian estimation using three sets of priors. We find that the policy coefficients and the parameter governing the elasticity of labor supply are weakly identified by the data, and posterior predictive distributions remind us that DSGE models may make poor forecasts even when they fit the data well. Although parameter identification is model- and data-specific, the lack of identification of some key structural parameters in a small-scale DSGE model such as the one we examine should raise a red flag to researchers trying to estimate--and draw valid inferences from--large-scale models featuring many more parameters.

Keywords: Bayesian estimation, forecasting, identification, MCMC, Switzerland

Abstract:

House prices in the United Kingdom rose rapidly in recent years. The run-up, larger than any other in U.K. history, leveled off early last year. House prices are currently declining at rates faster than those seen in the early 1990's downturn. The housing downturn, however, is far from complete. Using the price-rent ratio as a guide, house prices are likely to fall at least a further 30 percent before leveling off. Given the historic links between housing and real activity, the downturn is likely to be associated with very slow growth. Going forward, we recommend the price-rent ratio as the appropriate measure of housing valuation.

Keywords: Rent price ratio, house price, measurement

Abstract:

Nominal interest rates are unlikely to be generated by unit-root processes. Using data on short and long interest rates from eight developed and six emerging economies, we test the expectations hypothesis using cointegration methods under the assumption that interest rates are near integrated. If the null hypothesis of no cointegration is rejected, we then test whether the estimated cointegrating vector is consistent with that suggested by the expectations hypothesis. The results show support for cointegration in ten of the fourteen countries we consider, and the cointegrating vector is similar across countries. However, the parameters differ from those suggested by theory. We relate our findings to existing literature on the failure of the expectations hypothesis and to the role of term premia.

Keywords: Bonferroni tests, cointegration, expectations hypothesis, near integration, term premium

Abstract:

This paper analyzes the impact of U.S. monetary policy announcement surprises on U.S. and foreign firm-level equity prices. We find that U.S. monetary policy has important influences on foreign equity prices on average, but with considerable variation across firms. We have found that this differing response reflects a range of factors, including the extent of a foreign firm's exposure to U.S. demand, its dependence on external financing, the behavior of interest rates in its home country, and its sensitivity to portfolio adjustment by U.S. investors. The cross-firm variation in the response is correlated with the firm's CAPM beta; but it cannot fully explain this variation. More generally, we see these results as shedding some additional light on the nature and extent of the monetary and financial linkages between the United States and the rest of the world. In particular, since we are able to explain differences across foreign firms' responses through established theories of monetary transmission, our results are consistent with the surprisingly large average foreign response to U.S. rates reflecting fundamentals, rather than an across-the-board behavioral over-reaction.

Keywords: Monetary policy announcements, high frequency data, credit channel

Abstract:

This paper examines whether the "soft" information contained in the text of management's quarterly earnings press releases is incrementally informative over the company's reported "hard" earnings news. We use Diction, a textual-analysis program, to extract various dimensions of managerial net optimism from more than 20,000 corporate earnings announcements over the period 1998 to 2006 and document that unanticipated net optimism in managers' language affects announcement period abnormal returns and predicts post-earnings announcement drift. We find that it takes longer for the market to understand the implications of soft information than those of hard information. We also find that the market response varies by firm size, turnover, media and analyst coverage, and the extent to which the standard accounting model captures the underlying economics of the firm. We also show that the second moment of soft information, the level of certainty in the text, is an important determinant of contemporaneous idiosyncratic volatility, and it predicts future idiosyncratic volatility.

Keywords: Soft information, earnings announcements, post-earnings drift, cheap talk, earnings quality, information uncertainty, momentum, voluntary disclosure

Abstract:

Since 2001, foreign investors have acquired roughly $5 trillion in U.S. securities--more than doubling their holdings of U.S. equities and bonds--as both official and private inflows have financed record U.S. current account deficits. Although the rapid growth of foreign holdings of U.S. securities raises concerns that foreign investors may have become too heavily weighted in U.S. assets, foreign investors have not in fact materially changed the relative allocations between U.S. and other foreign securities in their portfolios in recent years. Based on data from the most recent comprehensive surveys of foreign portfolio investment, the 2006 IMF Coordinated Portfolio Investment Surveys (CPIS), most foreign investors remain relatively more underweight in both U.S. equities and bonds than they do in foreign securities in general. Although the underweight position suggests that there remains potential for foreign investors to continue to acquire U.S. securities, econometric evidence indicates that the underweight position itself reflects a preference by foreign investors for securities of countries with which they have strong economic or cultural ties, consistent with recent research that suggests "location" or "information" preferences in both domestic and international portfolios. As securities markets abroad continue to deepen, such factors are likely to continue to attract investment from "nearby" markets, especially from European investors.

Keywords: Equities, bonds, home bias, international portfolio allocation

Abstract:

Survey data show that the expected growth rates of consumption across countries vary widely and are not highly correlated. This data contradicts the simplest of open-economy models in which there is a freely traded non- state-contingent bond and purchasing power parity holds. We explore two alternative explanations for the finding: that households in each country in effect face different ex ante real interest rates or that there are significant credit constraints, so that expected consumption growth rates are driven largely by expected income growth. The empirical evidence strongly supports the latter hypothesis. These findings challenge the modeling of consumption that is at the heart of many, if not most, macroeconomic models.

Keywords: Consumption Euler equation, survey data, international capital mobility

Abstract:

Exchange rates have raised the ire of economists for more than 20 years. The problem is that few, if any, exchange rate models are known to systematically beat a naive random walk in out of sample forecasts. Engel and West (2005) show that these failures can be explained by the standard-present value model (PVM) because it predicts random walk exchange rate dynamics if the discount factor approaches one and fundamentals have a unit root. This paper generalizes the Engel and West (EW) hypothesis to the larger class of open economy dynamic stochastic general equilibrium (DSGE) models. The EW hypothesis is shown to hold for a canonical open economy DSGE model. We show that all the predictions of the standard-PVM carry over to the DSGE-PVM. The DSGE-PVM also yields an unobserved components (UC) models that we estimate using Bayesian methods and a quarterly Canadian-U.S. sample. Bayesian model evaluation reveals that the data support a UC model that calibrates the discount factor to one implying the Canadian dollar-U.S. dollar exchange rate is a random walk dominated by permanent cross-country monetary and productivity shocks.

Keywords: Exchange rates, present-value model and fundamentals, random walk, DSGE model, unobserved components model, Bayesian model comparison

Abstract:

The sustainability of the large and persistent U.S. current account deficits is one of the biggest issues currently being confronted by international macroeconomists. Some very plausible theories suggest that the substantial global imbalances can continue in a benign manner, other equally plausible theories predict a disorderly resolution, and in general it is very difficult to discern between competing theories. To inform the debates, we view competing theories through the perspective of the relative reliability of the data the theories rely on. Our analysis of the dark matter theory is cursory; from a relative reliability perspective, it fails as it is built on the assumption that an item that is largely unmeasured is the most accurate component of the entire set of international accounts. Similarly, the best data currently available suggest that U.S. returns differentials are much smaller than implied by the exorbitant privilege theory. Our analysis opens up questions about potential inconsistencies in the international accounts, which we address by providing rough estimates of various holes in the accounts.

Related Material: Data (38 KB ZIP), Data appendix

Keywords: Current account imbalances, international investment, exorbitant privilege, dark matter, financial derivatives, real estate, short sales, R&D

Abstract:

This paper analyzes the implications of remittance fluctuations for various macroeconomic variables and Sudden Stops. The paper employs a quantitative two-sector model of a small open economy with financial frictions calibrated to Mexican and Turkish economies, two major recipients, whose remittance receipts feature opposite cyclical characteristics. We find that remittances dampen the business cycles in Mexico, whereas they amplify the cycles in Turkey. Their quantitative effects in the long run, approximated by the stochastic steady state are mild. In the short run, however, remittances have quantitatively large impacts on the economy, when the economy is borrowing constrained. This is because agents in the economy cannot adjust their precautionary wealth to sudden tightening in credit, hence, fluctuations in remittances get magnified through an endogenous debt-deflation mechanism. Our findings suggest that procyclical (or countercyclical) remittances can play a significant deepening (or mitigating) role for Sudden Stops.

Keywords: Business cycles, remittances, sudden stops

Abstract:

We examine the stock market impact of SEC Rule 12h-6 which eased the ability of foreign firms to deregister with the SEC and as a result terminate their U.S. disclosure obligations under the 1934 Securities Exchange Act. We document that the market reacted negatively to the ability of firms from weak disclosure and governance countries to more easily opt out of the stringent U.S. reporting and legal environment. Our findings suggest that shareholders of non-U.S firms place significant value on U.S. securities regulations, especially when the home country investor protections are weak.

Keywords: International finance, deregulation, international cross-listing

Abstract:

Central banks, whether independent or not, may occasionally be subject to external pressures to change policy objectives. We analyze the optimal response of central banks to such pressures and the resulting macroeconomic consequences. We consider several alternative scenarios regarding policy objectives, the degree of commitment and the timing of external pressures. The possibility to adopt " more liberal" objectives in the future increases current inflation through an accommodation effect. Simultaneously, the central bank tries to anchor inflation by promising to be even " more conservative" in the future. The immediate effect is an output contraction, the opposite of what the pressures to adopt " more liberal" objectives may be aiming. We also discuss the opposite case, where objectives may become " more conservative" in the future, which may be the relevant case for countries considering the adoption of inflation targeting.

Keywords: Monetary policy, time-consistency, political disagreement

Abstract:

This paper assesses the empirical merits of PcGets and Autometrics--two recent algorithms for computer-automated model selection--using them to improve upon Kamin and Ericsson's (1993) model of Argentine broad money demand. The selected model is an economically sensible and statistically satisfactory error correction model, in which cointegration between money, inflation, the interest rate, and exchange rate depreciation depends on the inclusion of a "ratchet" variable that captures irreversible effects of inflation. Short-run dynamics differ markedly from the long run. Algorithmically based model selection complements opportunities for the researcher to contribute value added in the empirical analysis.

Related Material: Data (524 KB ZIP), Data and empirical results

Keywords: Argentina, autometrics, broad money, dynamic specification, cointegration, conditional models, currency substitution, dollarization, error correction, exogeneity, hyperinflation, irreversibility, model design, model selection, money demand, PcGets, ratchet effect

Abstract:

This study assesses the role of the Asian financial crisis of the late 1990s in the emergence and persistence of the large current account surpluses across non-China emerging Asia, which have been a significant counterpart to the U.S. current account deficit. Using panel data encompassing nearly 3,750 firms, we trace the current account surpluses to a marked and broad-based decline in corporate expenditures on fixed investment in the aftermath of the crisis that cuts across a wide spectrum of countries, industries, and firms. The lower corporate spending in turn depressed aggregate investment rates, widened the saving-investment gap, and allowed the region to turn into a net exporter of capital. We then consider the factors behind this reduction in postcrisis corporate investment. While weaker firm-level fundamentals in the postcrisis period seem to explain part of the drop in investment rates, ongoing re-structuring owing to large debts accumulated and excess investment undertaken in the run-up to the crisis has been the main source of restraint postcrisis corporate investment. The results suggest that even after a decade, the effect of the financial crisis is still affecting corporate investment decisions in emerging Asia, and that as the restructuring completes its course, investment rates will likely rise to contribute to a gradual reduction in the region's current account surpluses.

Keywords: Global imbalance, emerging asia, current account, investment

Abstract:

In a stylized DSGE model with an energy sector, the optimal policy response to an adverse energy supply shock implies a rise in core inflation, a larger rise in headline inflation, and a decline in wage inflation. The optimal policy is well-approximated by policies that stabilize the output gap, but also by a wide array of "dual mandate" policies that are not overly aggressive in stabilizing core inflation. Finally, policies that react to a forecast of headline inflation following a temporary energy shock imply markedly different effects than policies that react to a forecast of core, with the former inducing greater volatility in core inflation and the output gap.

Related Materials: Technical Appendix (PDF), The appendix shows how to derive the second order approximation to the welfare loss function; Replication Codes (ZIP), A zip file that contains MATLAB programs to replicate the results reported in the paper. See file readme.txt for instructions.

Keywords: Energy-price shocks, monetary policy tradeoffs, DSGE models

Abstract:

This paper examines the stock price impact of 163 announcements of Sovereign Wealth Fund (SWF) investments. We document an average positive risk-adjusted return of 2.1 percent for target firms during two days surrounding SWF acquisition announcements. The announcement effect is both statistically and economically significant. A multivariate analysis shows that the degree of transparency of SWF activities is an important determinant of the market reaction, and both the SWF and the existing shareholders of the target firm benefit from improved SWF disclosure. In addition, target firms' profitability, growth, and governance do not change significantly in the three-year period following the SWF investment relative to a control sample. These results are robust to a battery of tests. Overall, our findings suggest that SWF investments convey a positive signal to market participants about the target firm, increased SWF transparency is enjoyed by both the SWF and existing shareholders, and SWFs are passive investors.

Keywords: International finance, sovereign wealth fund, cross-border investment, market efficiency, transparency

Abstract:

The financial turmoil which began in August 2007 originated, in part, because investors reassessed the quality of the assets underlying many asset-backed securities (ABS), particularly U.S. mortgages. The prominence of European banks in the early stages of the turmoil created the perception that foreigners held an outsized share of risky U.S. securities and prompted questions of why Europeans were so exposed. This paper evaluates that perception by quantifying foreign exposure to ABS with U.S. underlying collateral. Using the latest survey data on foreign portfolio holdings of U.S. securities, we find that the ultimate losses that foreigners could incur arising from U.S. underlying assets are small relative to most scale variables, although initial total mark-to-market losses are estimated to be significantly larger. Among other reasons for this difference between ultimate and initial losses, we demonstrate that the securitization chain can amplify mark-to-market price declines in the presence of uncertainty or illiquidity. Finally, we show that, relative to the size of the market, foreigners' holdings of U.S. mortgage-backed securities do not appear to be elevated compared with their holdings of other U.S. assets.

Keywords: Financial turmoil, securitization, ABS, mark-to-market

Abstract:

The tendency of countries to accumulate public debt has been rationalized in models of political disagreement and lack of commitment. We analyze in a benchmark model how the evolution of public debt is affected by lack of commitment per se. While commitment introduces indeterminacy in the level of debt, lack of commitment creates incentives for debt to converge to specific levels. One of the levels that debt often converges to implies no debt accumulation at all. In a simple example we prove analytically that debt converges to zero, and we analyze numerically more complex models. We also show in an imperfect credibility setting that a small deviation from full-commitment is enough to obtain these results.

Keywords: Fiscal policy, debt, imperfect commitment

Abstract:

This paper asks whether an aggressive monetary policy response to inflation is feasible in countries that suffer from fiscal dominance, as long as monetary policy also responds to fiscal variables. We find that if nominal interest rates are allowed to respond to government debt, even aggressive rules that satisfy the Taylor principle can produce unique equilibria. But following such rules results in extremely volatile inflation. This leads to very frequent violations of the zero lower bound on nominal interest rates that make such rules infeasible. Even within the set of feasible rules the optimal response to inflation is highly negative, and more aggressive inflation fighting is inferior from a welfare point of view. The welfare gain from responding to fiscal variables is minimal compared to the gain from eliminating fiscal dominance.

Keywords: Optimal simple policy rules, fiscal dominance

Abstract:

This paper proposes a methodology for measuring credit booms and uses it to identify credit booms in emerging and industrial economies over the past four decades. In addition, we use event study methods to identify the key empirical regularities of credit booms in macroeconomic aggregates and micro-level data. Macro data show a systematic relationship between credit booms and economic expansions, rising asset prices, real appreciations, widening external deficits and managed exchange rates. Micro data show a strong association between credit booms and firm-level measures of leverage, firm values, and external financing, and bank-level indicators of banking fragility. Credit booms in industrial and emerging economies show three major differences: (1) credit booms and the macro and micro fluctuations associated with them are larger in emerging economies, particularly in the nontradables sector; (2) not all credit booms end in financial crises, but most emerging markets crises were associated with credit booms; and (3) credit booms in emerging economies are often preceded by large capital inflows but not by financial reforms or productivity gains.

Keywords: Credit booms, business cycles, emerging markets

Abstract:

This paper addresses three questions about the prospects for the U.S. current account deficit. Is it sustainable in the long term? If not, how long will it take for measures of external debt and debt service to reach levels that could prompt some pullback by global investors? And if and when such levels are breached, how readily would asset prices respond and the current account start to narrow?

To address these questions, we start with projections of a detailed partial-equilibrium model of the U.S. balance of payments. Based on plausible assumptions of the key drivers of the U.S. external balance, they indicate that the current account deficit will resume widening and the negative NIIP/GDP ratio will continue to expand. However, our projections suggest that even by the year 2020, the negative NIIP/GDP ratio will be no higher than it is in several industrial economies today, and U.S. net investment income payments will remain very low. The share of U.S. claims in foreigners' portfolios will likely rise, but not to an obviously worrisome extent. All told, it seems likely it would take many years for the U.S. debt to cumulate to a level that would test global investors' willingness to extend financing.

Finally, we explore the historical responsiveness of asset prices and the current account in industrial economies to measures of external imbalances and debt. We find little evidence that, as countries' net indebtedness rises, the developments needed to correct the current account--including changes in growth rates, asset prices, or exchange rates--materialize all that rapidly.

We would emphasize that these findings do not imply that U.S. current account adjustment is necessarily many years away, as any number of factors could trigger such adjustment. Our point is rather that international balance sheet considerations likely are not sufficient, by themselves, to require external adjustment any time soon.

Keywords: Sustainability, external imbalance, dollar

Abstract:

The empirical literature provides a wide range of estimates for trade elasticities at the aggregate level. Furthermore, recent contributions in international macroeconomics suggest that low (implied) values of the trade elasticity of substitution may play an important role in understanding the disconnect between international prices and real variables. However, a standard model of the international business cycle displays multiple locally isolated equilibria if the trade elasticity of substitution is sufficiently low. The main contribution of this paper is to compute and characterize some dynamic properties of these equilibria. While multiple steady states clearly signal equilibrium multiplicity in the dynamic setup, this is not a necessary condition. Solutions based on log-linearization around a deterministic steady state are of limited to no help in computing the true dynamics. However, the log-linear solution can hint at the presence of multiple dynamic equilibria.

Keywords: Multiple equilibria, linearization, DSGE models

Abstract:

I test for stock return predictability in the largest and most comprehensive data set analyzed so far, using four common forecasting variables: the dividend- and earnings-price ratios, the short interest rate, and the term spread. The data contain over 20,000 monthly observations from 40 international markets, including 24 developed and 16 emerging economies. In addition, I develop new methods for predictive regressions with panel data. Inference based on the standard fixed effects estimator is shown to suffer from severe size distortions in the typical stock return regression, and an alternative robust estimator is proposed. The empirical results indicate that the short interest rate and the term spread are fairly robust predictors of stock returns in developed markets. In contrast, no strong or consistent evidence of predictability is found when considering the earnings- and dividend-price ratios as predictors.

Keywords: Cross-sectional dependence, panel data, pooled regression, predictive regression, stock return predictability

Abstract:

We show that the general bias reducing technique of jackknifing can be successfully applied to stock return predictability regressions. Compared to standard OLS estimation, the jackknifing procedure delivers virtually unbiased estimates with mean squared errors that generally dominate those of the OLS estimates. The jackknifing method is very general, as well as simple to implement, and can be applied to models with multiple predictors and overlapping observations. Unlike most previous work on inference in predictive regressions, no specific assumptions regarding the data generating process for the predictors are required. A set of Monte Carlo experiments show that the method works well in finite samples and the empirical section finds that out-of-sample forecasts based on the jackknifed estimates tend to outperform those based on the plain OLS estimates. The improved forecast ability also translates into economically relevant welfare gains for an investor who uses the predictive regression, with jackknifed estimates, to time the market.

Keywords: Bias correction, jackknifing, predictive regression, stock return predictability

Abstract:

We test if a standard representative agent model with a home-production sector can resolve the equity premium or value premium puzzles. In this model, agents value market consumption and a home consumption good that is produced as an aggregate of the stock of housing, home labor, and a labor-augmenting technology shock. We construct the unobserved quantity of the home consumption good by combining observed data with restrictions of the model. We test the first-order conditions of the model using GMM. The model is rejected by the data; it cannot explain either the historical equity premium or the value premium.

Keywords: Elasticity of eubstitution, durable consumption, house prices

Abstract:

This paper investigates the underlying determinants of home bias using a comprehensive sample of U.S. investor holdings of foreign stocks. We document that U.S. cross-listings are economically important, as U.S. ownership in a foreign firm roughly doubles upon cross-listing in the United States. We explore the cross-sectional variation in this "cross-listing effect" and show that increases in U.S. investment are largest in firms from weak accounting backgrounds and in firms that are otherwise informationally opaque, indicating that U.S. investors value the improvements in disclosure associated with cross-listing. We confirm that relative equity valuations rise for cross-listed stocks, and provide evidence suggesting that valuation increases are due in part to increases in U.S. shareholder demand and in part to the fact that the equities become more attractive to non-U.S. shareholders.

Keywords: Home bias, portfolio choice, financial disclosure, corporate governance

Abstract:

We show how to implement a competitive search equilibrium in a fully-specified DSGE environment. Competitive search, an equilibrium concept well-understood in labor market theory, offers an alternative to the commonly-used Nash bargaining in search-based macro models. Our simulation-based results show that business cycle fluctuations under competitive search equilibrium are virtually identical to those under Nash bargaining for a broad range of calibrations of Nash bargaining power. We also prove that business cycle fluctuations under competitive search equilibrium are exactly identical to those under Nash bargaining restricted to the popularly-used Hosios condition for search efficiency. This latter result extends the efficiency properties of competitive search equilibrium to a DSGE environment. Our results thus provide a foundation for researchers interested in studying business cycle fluctuations using search-based environments to claim that the sometimes-awkward assumption of bargaining per se does not obscure interpretation of results.

Keywords: Search models, customer markets, business cycle fluctuations

Abstract:

This paper analyzes the asymptotic properties of long-horizon estimators under both the null hypothesis and an alternative of predictability. Asymptotically, under the null of no predictability, the long-run estimator is an increasing deterministic function of the short-run estimate and the forecasting horizon. Under the alternative of predictability, the conditional distribution of the long-run estimator, given the short-run estimate, is no longer degenerate and the expected pattern of coefficient estimates across horizons differs from that under the null. Importantly, however, under the alternative, highly endogenous regressors, such as the dividend-price ratio, tend to deviate much less than exogenous regressors, such as the short interest rate, from the pattern expected under the null, making it more difficult to distinguish between the null and the alternative.

Keywords: Predictive regressions, long-horizon regressions, stock return predictability

Abstract:

The data reveal that emerging markets do not differ from developed countries with regards to the variance of permanent TFP shocks relative to transitory. They do differ, however, in the degree of uncertainty agents face when formulating expectations. Based on these observations, we build an equilibrium business cycle model in which the agents cannot perfectly distinguish between the permanent and transitory components of TFP shocks. When formulating expectations, they assign some probability to TFP shocks being permanent even when they are purely transitory. This is sufficient for the model to produce "permanent-like" effects in response to transitory shocks. The imperfect information model calibrated to Mexico predicts a higher variability of consumption relative to output and a strongly negative correlation between the trade balance and output, without the predominance of trend shocks. The same model assuming perfect information and calibrated to Canada accounts for developed country business cycle regularities. The estimated relative variance of trend shocks in these two models is similar.

Keywords: Emerging markets, business cycles, learning, Kalman filter

Abstract:

Predicting cycles in economic activity is one of the more challenging but important aspects of economic forecasting. This paper reports the results from estimation of binary probit models that predict the probability of an economy being in a recession using a variety of financial and real activity indicators. The models are estimated for eight countries, both individually and using a panel regression. Although the success of the models varies, they are all able to identify a significant number of recessionary periods correctly.

Keywords: Forecasting, turning points, business cycles, economic indicators

Abstract:

This paper uses data on publicly-traded firms in the U.S. to analyze the effect of interstate bank integration on the financial constraints borrowers face. A firm-level investment equation is estimated in order to test if bank integration reduces the sensitivity of capital expenditures to the level of internal funds. The staggered deregulation of cross-state bank acquisitions that took place in the U.S. between 1978 and 1994 helps estimate the model. Integration decreases financing constraints for bank-dependent firms. The change in firms' access to external finance is explained by an increase in the share of locally headquartered geographically diversified banks.

Keywords: Bank deregulation, investment, financing constraints

Abstract:

Models of business cycles in emerging economies explain the negative correlation between country spreads and output by modeling default risk as an exogenous interest rate on working capital. Models of strategic default explain the cyclical properties of sovereign spreads by assuming an exogenous output cost of default with special features, and they underestimate debt-output ratios by a wide margin. This paper proposes a solution to this default risk-business cycle disconnect based on a model of sovereign default with endogenous output dynamics. The model replicates observed V-shaped output dynamics around default episodes, countercyclical sovereign spreads, and high debt ratios, and it also matches the variability of consumption and the countercyclical fluctuations of net exports. Three features of the model are key for these results: (1) working capital loans pay for imported inputs; (2) imported inputs support more efficient factor allocations than when these inputs are produced internally; and (3) default on the foreign obligations of firms and the government occurs simultaneously.

Keywords: Business cycles, sovereign default, emerging economies

Abstract:

This paper addresses the popular view that differences in financial development explain the pattern of global current account imbalances. One strain of thinking explains the net flow of capital from developing to industrial economies on the basis of the industrial economies' more advanced financial systems and correspondingly more attractive assets. A related view addresses why the United States has attracted the lion's share of capital flows from developing to industrial economies; it stresses the exceptional depth, breadth, and safety of U.S. financial markets.

In this paper we empirically test these hypotheses. Building on Chinn and Prasad (2003) and Gruber and Kamin (2007), we assess econometrically whether different measures of financial development explain the net flow of capital from developing to industrial economies, as well as the concentration of those flows toward the United States. We also assess whether differences in asset returns, an alternative measure of the attractiveness of financial assets, can explain the international pattern of capital flows.

We find little evidence that differences in financial development help to explain the global pattern of current account imbalances. The measures of financial development generally do not explain either the net flow of capital from developing to industrial economies or, more specifically, the large U.S. current account deficits. Lower bond yields have been generally associated with lower current account balances (e.g., larger deficits) in industrial countries. However, U.S. bond yields have not been significantly lower than in other industrial economies, nor have expected equity earnings yields. This suggests, contrary to conventional wisdom, that U.S. financial assets have not been demonstrably more attractive than those of other industrial economies, and hence cannot explain the large U.S. deficit.

Finally, we consider the alternative but related hypothesis that spending in the United States was uniquely responsive to the lower cost of credit stemming from capital inflows from developing countries, thus accounting for the outsized U.S. deficit. However, we found this hypothesis also to be weak, as household saving rates have declined throughout the industrial economies, not just in the United States.

Keywords: Capital flows, bond yields, current account

Abstract:

This paper uses a unique database that includes deal and bank balance sheet information for 220 cross-border acquisitions between 1994 and 2003 to analyze the characteristics and performance effects of international takeovers on target banks. A discrete choice estimation shows that banks are more likely to get acquired in a cross-border deal if they are large, bad performers, in a small country, and when the banking sector is concentrated. Post-acquisition performance for target banks does not improve in the first two years relative to domestically-owned financial institutions. This result is explained by a decrease in the banks' net interest margin in developed countries and an increase in overhead costs in emerging economies.

Keywords: Mergers and acquisitions, performance, international banking

Abstract:

Were the U.S. to persistently earn substantially more on its foreign investments ("U.S. claims") than foreigners earn on their U.S. investments ("U.S. liabilities"), the likelihood that the current environment of sizeable global imbalances will evolve in a benign manner increases. However, using a monthly dataset on the foreign equity and bond portfolios of U.S. investors and the U.S. equity and bond portfolios of foreign investors, we find that the returns differential for portfolio securities is near zero, far smaller than previously reported. Examining all U.S. claims and liabilities (portfolio securities as well as direct investment and banking), we find that previous estimates of large differentials are biased upward. The bias owes to computing implied returns from an internally inconsistent dataset of revised data; original data produce a much smaller differential. We also attempt to reconcile our finding of a near zero returns differential with observed patterns of cumulated current account deficits, the net international investment position, and the net income balance. Overall, we find no evidence that the U.S. can count on earning substantially more on its claims than it pays on its liabilities.

Keywords: Current account imbalances, international investment

Abstract:

A key application of automatic differentiation (AD) is to facilitate numerical optimization problems. Such problems are at the core of many estimation techniques, including maximum likelihood. As one of the first applications of AD in the field of economics, we used Tapenade to construct derivatives for the likelihood function of any linear or linearized general equilibrium model solved under the assumption of rational expectations. We view our main contribution as providing an important check on finite-difference (FD) numerical derivatives. We also construct Monte Carlo experiments to compare maximum-likelihood estimates obtained with and without the aid of automatic derivatives. We find that the convergence rate of our optimization algorithm can increase substantially when we use AD derivatives.

Keywords: General equilibrium models, Kalman filter, maximum likelihood

Abstract:

A growing body of evidence suggests that ongoing relationships between consumers and firms may be important for understanding price dynamics. We investigate whether the existence of such customer relationships has important consequences for the conduct of both long-run and short-run policy. Our central result is that when consumers and firms are engaged in long-term relationships, the optimal rate of price inflation volatility is very low even though all prices are completely flexible. This finding is in contrast to those obtained in first-generation Ramsey models of optimal fiscal and monetary policy, which are based on Walrasian markets. Echoing the basic intuition of models based on sticky prices, unanticipated inflation in our environment causes a type of relative price distortion across markets. Such distortions stem from fundamental trading frictions that give rise to long-lived customer relationships and makes pursuing inflation stability optimal.

Keywords: Inflation stability, Ramsey model, search models

Abstract:

We develop and estimate an open economy New Keynesian Phillips curve (NKPC) in which variable demand elasticities give rise to changes in desired markups in response to changes in competitive pressure from abroad. A parametric restriction on our specification yields the standard NKPC, in which the elasticity is constant, and there is no role for foreign competition to influence domestic inflation. By comparing the unrestricted and restricted specifications, we provide evidence that foreign competition plays an important role in accounting for the behavior of inflation in the traded goods sector. Our estimates suggest that foreign competition has lowered domestic goods inflation about 1 percentage point over the 2000-2006 period. Our results also provide evidence against demand curves with a constant elasticity in the context of models of monopolistic competition.

Keywords: Inflation, New Keynesian Phillips curve, variable markups

Abstract:

In this paper we construct a new measure of U.S. prices relative to those of its trading partners and use it to reexamine the behavior of U.S. net exports. Our measure differs from existing measures of the dollar's real effective exchange rate (REER) in that it explicitly incorporates both the difference in price levels between the United States and developing economies and the growing importance of these developing economies in world trade. Unlike existing REERs, our measure shows that relative U.S. prices have increased significantly over the past 15 years. In terms of simple correlations, the relationship between our measure of relative prices and U.S. net exports is much more coherent than that between existing REERs and net exports. To explore this relationship further, we use our measure to construct an index of foreign prices relevant for U.S. export volumes and reexamine several export equations. We find that export equations with the new index dominate those with previous measures in terms of in-sample fit, out-of-sample fit, and parameter constancy. In addition, we find that with the new index of foreign prices the estimated elasticity of U.S. exports with respect to foreign income is a good bit higher than the unitary elasticity found in previous studies using other price measures. This has implications for U.S. current account adjustment.

Keywords: Automated model specification, China, competitiveness, IMF, FRB, geometric aggregation, Penn World Tables, real effective exchange rates, trade elasticities