May 2008 Report

May 22nd, 2008

 

On this website we publish our recession probability estimates and forecasts for the US economy obtained using the methodology in Paap et al. (2009), as described below. The website is updated every month, shortly after the release of The Conference Board's Coincident Economic Index (CEI) and Leading Economic Index (LEI).

 

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Figure 1. Recession Probabilities for the US Economy

 

Figure 1 shows recession probability estimates over the last ten years up to April 2008. These are based on the CEI and LEI vintages released on May 19th.

 

In April 2008, the LEI increased 0.1 percent and the CEI remained unchanged.

 

Our first estimates of the coincident and the leading recession probability for April 2008 equal 54 percent. This is a strong signal that the US economy has entered into a recession. The current data vintage shows a substantial decline in the leading index since July 2007, while (due to data revisions) it now appears that the coincident index has been steadily declining after October 2007. The recession probability estimates based on this data vintage suggest that the peak has occurred in January 2008 (the coincident recession probability increased from 39 percent in that month to 54 percent in February).

 

The probabilities are obtained from a Markov-Switching model for monthly growth rates for the CEI and LEI. The model assumes that the two variables share the same cycle, where the LEI leads the CEI with lead times at peaks and troughs allowed to be different. The model therefore produces both a 'coincident' and a 'leading' recession probability.


Figure 2 shows coincident and leading recession probabilities since January 1959. The blue and green shaded areas indicate months that are part of periods during which this probability exceeds 0.5 for at least six consecutive months. This corresponds with the popular rule of thumb saying that the economy is in recession whenever economic growth is negative during two consecutive quarters. The recession periods as determined by the NBER are also shown for comparison.

 

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Figure 2a. Recessions as determined by the NBER

 

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Figure 2b. Recession Probabilities for the CEI

 

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Figure 2c. Recession Probabilities for the LEI


 

Time series plots of the May 2008 vintages

Figure 3 displays the time series plots of the log levels and monthly growth rates of the LEI and CEI, together with the recession periods as determined by the NBER, indicated by the yellow shaded areas. The leading index has a similar cyclical pattern as the coincident index, but with turning points clearly occurring earlier, and recessions lasting considerably longer.

 

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Figure 3a. Time Series Plots of the May 2008 Vintages: Levels
Source: The Conference Board

 

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Figure 3b. Time Series Plots of the May 2008 Vintages: Monthly Growth Rates
Source: The Conference Board