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Simulating Inflation Forecasting in Real-Time
This paper simulates out-of-sample inflation forecasting for Germany, the UK, and the US. In contrast to other studies, we use output gaps estimated with unrevised real-time GDP data. This exercise assumes an information set similar to that available to a policymaker at a given point in time since GDP data is subject to sometimes substantial revisions. In addition to using real-time datasets for the UK and the US, we employ a dataset for real-time German GDP data not used before. We find that Phillips curves based on ex post output gaps generally improve the accuracy of inflation forecasts compared to an AR(1) forecast but that real-time output gaps often do not help forecasting inflation. This raises the question how operationally useful certain output gap estimates are for forecasting inflation.
Cyclical Behavior of Inventories and Growth Projections Recent Evidence From Europe and the United States
In the United States and a few European countries, inventory behavior is mainly the outcome of demand shocks: a standard buffer-stock model best characterizes these economies. But most European countries are described by a modified buffer-stock model where supply shocks dominate. In contrast to the United States, inventories boost growth with a one-year lag in Europe. Moreover, inventories provide limited information to improve growth forecasts particularly when a modified buffer-stock model characterizes inventory behavior.
IMF Research Bulletin, December 2010
The Q&A in this issue features seven questions about emerging markets and the financial crisis (by Ayhan Kose); the research summaries are "Tax Revenue Response to the Business Cycle" (by Cemile Sancak, Ricardo Velloso, and Jing Xing) and "Banking Crisis Resolution: Was this Time Different?" (by Luc Laeven and Fabian Valencia). The issue also lists the contents of the second issue of the IMF Economic Review, Volume 58 Number 2; visiting scholars at the IMF during October-December 2010; and recent IMF Working Papers and Staff Position Notes.
China and the G-21
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Lessons from High Inflation Episodes for Stabilizing the Economy in Zimbabwe
Zimbabwe has currently the highest rate of inflation in the world (an annual rate of 1,730 percent in February, 2007). The high rates of inflation have contributed to the contraction of the economy, which has declined by about 30 percent since 1999. This paper examines the stabilization experience of countries that experienced similar rates of inflation (above 1,000 percent) during 1980-2005 and draws lessons for Zimbabwe. First, with appropriate stabilization policies, the fall in inflation can be very rapid and output normally recovers within the first year or two of stabilization. Second, while reforms need to be comprehensive, a strong upfront fiscal consolidation, including elimination of quasi-fiscal activities, is a critical element of a successful stabilization program. Third, although stabilization itself can be done without significant external financing in the first year, most countries benefited from external policy advice and technical support, including from the IMF, during stabilization and from an increase in financial assistance in subsequent years.
