The study of how people make decisions in situations in which attaining their goals depends on their interactions with others is called

How would a decrease in the U.S. budget deficit affect the exchange rate in the market for dollars?

A) The exchange rate will not be affected by a change in the budget deficit. B) The exchange rate will decrease. C) The exchange rate will increase. D) The impact of the decrease in the budget deficit on the exchange rate cannot be predicted.

If you are convinced that stock prices are impossible to predict from available information, then you probably also believe that

a. the efficient markets hypothesis is not a correct hypothesis. b. the stock market is informationally efficient. c. the stock market is informationally inefficient. d. there is no reason to establish a diversified portfolio of stocks.