GDP Prospects: Mean Estimates Fall and Dispersion Increases

One of the points that all the panelists at last Thursday’s event sponsored by WAGE (“The Global Economic Crisis”) agreed on was how quickly the macroeconomic situation has deteriorated. I wanted to see if one could quantify the rapidity with which growth prospects have changed. Here is one perspective, showing the mean forecast from the October and November WSJ surveys of forecasters.

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Real Retail Sales

Here’s a picture of 12-month percentage changes in real retail sales. Certainly unprecedented for the current series, not so much when including the previous (more volatile) discontinued series — although you do have to go back to 1980 to see a bigger 12-month drop.

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The Consumption Path under Certain Assumptions: Back of the Envelope Calculations

Suppose by 2009Q4, GDP is 0.13% below 2008Q3 levels, real equity wealth is 35.2% below end-June levels, and real nonequity wealth is 6% below end-June levels. Further assume that the real Fed Funds rate remains at 2008Q3 levels (-2.45%). Then, the conditional estimate of 2009Q4 consumption will be 2.16% below 2008Q3 levels. This implies a 3% y/y decline in consumption by 09Q3; the only comparable instance of such a decline is 1951Q3, when consumption declined y/y by 2.3% (all percent calculations in log terms).

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