Suppose that many stocks are traded in the market and that it is possible to borrow at the risk-free rate, rƒ. the characteristics of two of the stocks are as follows: stock expected return standard deviation a 8 % 40 % b 13 % 60 % correlation = –1 a. calculate the expected rate of return on this risk-free portfolio? (hint: can a particular stock portfolio be substituted for the risk-free asset? ) rate of return % b. could the equilibrium rƒ be greater than 10%? yes no

Suppose that in an economy the structural unemployment rate is 2.2 percent, the natural unemployment rate is 5.3 percent, and the cyclical unemployment rate is 2 percent. the frictional unemployment rate is percent and the actual unemployment rate (in this economy) is percent.

As the inventor of hypertension medication, onesure pharmaceuticals (osp) inc. was able to reap the benefits of economies of scale due to a large consumer demand for the drug. even when competitors later developed similar drugs after the expiry of osp's patents, regular users did not want to switch because they were concerned about possible side effects. which of the following benefits does this scenario best illustrate? a. first-mover advantages b. social benefits c. network externalities d. fringe benefits

Adecision is made at the margin when each alternative considers