The Federal Reserve Board eagle logo links to Board's home page

International Finance Discussion Papers
The International Finance Discussion Papers logo links to the International Finance Discussion Papers home page Surprise and Uncertainty Indexes: Real-Time Aggregation of Real-Activity Macro Surprises
Chiara Scotti
2013-1093  (November 2013)

Abstract:  I construct two real-time, real activity indexes: (i) a surprise index that summarizes recent economic data surprises and measures optimism/pessimism about the state of the economy, and (ii) an uncertainty index that measures uncertainty related to the state of the economy. The indexes, on a given day, are weighted averages of the surprises or squared surprises from a set of macro releases, where the weights depend on the contribution of the associated real activity indicator to a business condition index a la Aruoba, Diebold, and Scotti (2009). I construct indexes for the United States, Euro Area, the United Kingdom, Canada, Japan. I show that the surprise index preserves the properties of the underlying series in affecting asset prices, with the advantage of being a parsimonious summary measure of real-activity surprises. For the United States, I present the real-activity uncertainty index in relation to other proxies commonly used to measure uncertainty and compare their macroeconomic impact. I find evidence that when uncertainty is strictly related to real activity it has a potentially milder impact on economic activity than when it also relates to the financial sector.

Full paper (1110 KB PDF) | Full paper (screen reader version)

Keywords
Dynamic factor model, state space model, forecasting weights

PDF files: Adobe Acrobat Reader   ZIP files: PKWARE


Home | IFDPs | List of 2013 IFDPs
Accessibility | Contact Us
Last update: March 4, 2014