Juan Valdez, a coffee farmer in Colombia, sells his coffee to Cafe Emporium, a U. S. firm which specializes in gourmet coffee blends. What must be true of this arrangement? When Juan and other farmers in Colombia sell their coffee beans to foreigners, they gain in the short run, but in the long run will only impoverish their nation as a whole. Juan thinks he is better off with this contract, but in reality the wealthy American buyer is taking advantage of Juan's naiveté. While this arrangement is good for Juan, he would be even better off if the government had negotiated the contract because they could have gotten a better price for Juan. All three of these statements must be true. None of these statements must be true.

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i.e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i.e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.

Which of the following is a function performed by market prices? a. market prices communicate information to buyers and sellers. b. market prices coordinate the decisions of buyers and sellers. c. market prices motivate entrepreneurs to produce those products that are currently most desired relative to their costs of production. d. all of the above are functions performed by market prices.

Upper a report about the decline of western investment in third world countries included this: "after years of daily flights comma several european airlines halted passenger service. foreign investment fell 400 percent during the 1990 s." what is wrong with this statement? choose the correct answer below. a. if foreign investment fell by 100 % comma it would be totally eliminated comma so it is not possible for it to fall by more than 100 %. b. the actual amount of the decrease in foreign investment is less than 100%. c. if foreign investment fell by 100%, it would be cut in half. thus, a decrease of 200% means that it would be totally eliminated, and a decrease of more than 200% is impossible. d. the statement does not mention the initial amount of foreign investment.