But the problems in Southeast Asia did not make companies rush immediately to hedge their currency exposures elsewhere.
Mr. Rubin said that in some cases rules should be adopted to "limit banks' foreign currency exposures."
Most mutual funds reserve the right to hedge their currency exposure, but many have little or no intention of doing so.
It has installed new computers and communications systems that track changes in the company's currency exposure much faster than before.
The company aggravated its trouble by not hedging its currency exposure until after other German carmakers did.
In addition, the dollar price is hedged into sterling to avoid currency exposure.
"Germany accounts for about 33 percent of our currency exposure," said Edward Taber, the portfolio manager.
What hedge accounting options are available to an entity that wants to manage foreign currency exposure?
A specific type of hedging transaction that entities can engage in aims to manage foreign currency exposure.
Investors can easily be confused about how much currency exposure they are carrying, even if they pay close attention.