Detroit is still down, and the count begins on whether that means out.
Monthly Archives: March 2009
The February Employment Situation
Interesting Econometric Result of the Day: And the Prospects for a Growth Bounceback
The exchange between Brad Delong and Greg Mankiw ([1] [2], followed up by [3] [4]) reminded me of some earlier work I’d done with Yin-Wong Cheung on the time series properties of real GDP, back in the “unit root” wars. Briefly, Mankiw was alluding to work with Campbell indicating GDP was well approximated as an ARIMA process, while Delong is arguing that using unemployment, which is trend stationary, indicates that indeed sharper increases in unemployment presage more rapid GDP growth. The former characterization is univariate in nature and the latter is bivariate. Of course, we’ve moved on since those days — the entire VAR and SVAR literature expands the set of variables, but at the cost of greater complexity — but simple characterizations can still be useful.
How much is a trillion?
A trillion dollars used to be a sum that never naturally came up in normal conversation. Now all of a sudden, it’s the standard unit we seem to be using to talk about our economic problems and what we’re trying to do about them. Fortunately, I think I finally got a handle on what $1 trillion really means.
Is the Administration’s GDP Forecast Too Rosy?
Stock prices and fundamentals
How low can stock prices go, and how worried should you be?