Research

I have arguedthat the best way to think of “black swan” events is as developments that, even though low-probability, can in fact be contemplated ahead of time.  Even if they are the sort of thing that has never happened before within an analyst’s memory, similar things may have happened before in the distant past or in other countries.What current possible shocks have probabilities that, even if fairly low, are high enough to warrant thinking about now?  Some have been discussed ad infinitum, others hardly at all.

Throughout history, big economic and political shocks have often occurred in August, when leaders had gone on vacationin the belief that world affairs were quiet.   Examples of geopolitical jolts that came in August include the outbreak of World War I, the Nazi-Soviet pact of 1939 and the Berlin Wall in 1961.  Subsequent examples of economic and other surprises in August have included the Nixon shock of 1971 (when the American president enacted wage-price controls, took the dollar off gold, and imposed trade controls), 1982 eruption in Mexico of the international debt crisis, Iraq’s invasion of Kuwait in 1990, the 1991 Soviet coup, 1992 crisis in the European Exchange Rate Mechanism, Hurricane Katrina in 2005, and US subprime mortgage crisis of 2007.

My preceding postbemoaned the tendency for many US politicians to exhibit a procyclicalist pattern of behavior:    voting for tax cuts and spending increases when the economy is booming, which should be the time to save money for a rainy day, and then re-discovering the evils of budget deficits only in times of recession, thus supporting fiscal contraction at precisely the wrong time.  Procyclicalists exacerbate the magnitude of the swings in the business cycle.This is not just an American problem.

During much of the last decade, U.S. fiscal policy has been procyclical, that is, destabilizing.   We wasted the opportunity of the 2003-07 expansion by running large budget deficits.   As a result, in 2010, Washington now feels constrained by inherited debts to withdraw fiscal stimulus at a time when unemployment is still high.   Fiscal policy in the UK and other European countries has been even more destabilizing over the last decade.  Governments decide to expand when the economy is strong and then contract when it is weak, thereby exacerbating the business cycle.