GDP Accounting and the Euro Crisis

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Wednesday, 26 May 2010 04:47

The NYT reports on how the euro crisis may end up impeding the U.S. recovery. By lowering growth in Europe and reducing the value of the euro, it will reduce U.S. exports which were expected to be an important engine of growth for the U.S. economy. The article included a quote from Joseph Stiglitz making this point. However, it later presents a comment from James Bullard, the President of  the Federal Reserve Bank of St. Louis that directly contradicts Stiglitiz and appears to defy basic national income accounting, claiming that the United States:

"must 'directly address' its fiscal problems if it is to retain credibility with credit markets. After all, along with the countries of the euro zone, Britain and the United States are running outsize deficits, compounded by their spending to stimulate the economy."

As a matter of accounting identity, net national saving is equal to the trade surplus. Since the United States is running a large trade deficit, because of the over-valued dollar, it must have negative net national saving. This means either very large budget deficits and/or very low private saving. If the government were to reduce its deficit, then either private saving would have to fall, which would mean even further declines in consumer saving from already low levels, or we would see a fall in output and a rise in the unemployment rate.

It is not clear whether Mr. Bullard advocates more consumer indebtedness or higher unemployment, but it would have been useful to point out the logical implications of the policy that he was advocating.