Finance And Economics: America the risky?; Alarm
signals
Volume: 369 Number: 8344 ISSN: 00130613 Publication Date: 10-04-2003
Page: 84 Section: Finance and Economics Type: Periodical Language: English
The results from an economic early-warning system
WITH an eye to the crises that have erupted in emerging markets in
recent years, the clever economists at Lehman Brothers have produced a
model to help prevent investors losing their shirts again. The model,
called Damocles (as in "sword of") is an early-warning signal. It puts
together ten indicators--from external debt as a percentage of GDP to
foreign reserves as a percentage of short-term debt--to assess the overall
riskiness of a country, which is expressed as an index.
The bank picks a number for each of the factors; a rise above that
number is reflected in the index. The choice of the factors, says the
bank, involves theory and experience in equal measure; their weights are
derived by looking at their contribution to crises in 15 emerging- market
economies since 1995. A reading above 75 indicates that a country has a
one-in-three chance of a crisis in the next 12
months; a figure above 100 implies a 50-50 chance.
As is generally the way with such models, Damocles has worked well when
tested on past crises: it would have predicted the Asian crisis of
1997, for example. In recent years, the index has fallen for just about
every emerging market except South Africa. There is, however, a bigger
exception, a country that is not normally bracketed in such company:
America.
When Lehman ran America's economic numbers through Damocles, the
outcome was striking. With its rapidly climbing current-account deficit
and foreign debt, among other worries, America's Damocles index is just
shy of 75. There are, points out Russell Jones, the bank's international
economist, problems applying Damocles to America, which enjoys the luxury
of having the world's reserve currency. Granted. Poorer countries tend to
owe dollars, and therefore suffer when their currencies fall. Lucky
America, of course, owes its own currency.
Author not available, Finance And Economics: America the risky?;
Alarm signals. , The Economist, 10-04-2003, pp 84.
|