The curve representing the set of efficient portfolios must be

A study of the per capita consumption of gasoline: in 10 countries demonstrates that:

A. the consumption of gasoline does not appear to be related to the price of gasoline. B. higher gasoline prices reduce consumption in some of those countries, but not in others. C. higher gasoline prices do result in lower consumption of gasoline. D. higher gasoline prices actually increase the consumption of gasoline.

An emerging market country that successfully used exchange-rate targeting to lower its inflation from above 100 percent in 1988 to below 10 percent in 1994 (before devaluation) was

A) Thailand. B) Mexico. C) The Philippines. D) Indonesia.