The expected return and standard deviation of a portfolio that is 30 percent invested in 3 Doors, Inc., and 70 percent invested in Down Co. are the following: 3 Doors, Inc. Down Co. Expected return, E(R) 18 % 11 % Standard deviation, σ 51 40 What is the standard deviation if the correlation is +1? 0? −1?

Consider the following scenarios. use what you have learned to decide if the goods and services being provided are individual, public, or merit goods. for each case, state what kind of good has been described and explain your answer using the definitions of individual, public, and merit goods. (6 points each) 1. from your window, you can see a city block that's on fire. you watch city firefighters rescue people and battle the flames to save the buildings. 2. while visiting relatives, you learn that your cousins attend a nearby elementary school that is supported financially by local property tax revenue. 3. you see a squadron of military jets flying overhead. 4. you find out that your aunt works for a defense manufacturing company that has several defense contracts with the government. she tells you that she works for a team that is producing a communications satellite. 5. your class visits a local jail run by a private, profit-making company that detains county criminals and is paid with tax revenue.

9. tax types: taxes are classified based on whether they are applied directly to income, called direct taxes, or to some other measurable performance characteristic of the firm, called indirect taxes. identify each of the following as a “direct tax,” an “indirect tax,” or something else: a. corporate income tax paid by a japanese subsidiary on its operating income b. royalties paid to saudi arabia for oil extracted and shipped to world markets c. interest received by a u.s. parent on bank deposits held in london d. interest received by a u.s. parent on a loan to a subsidiary in mexico e. principal repayment received by u.s. parent from belgium on a loan to a wholly owned subsidiary in belgium f. excise tax paid on cigarettes manufactured and sold within the united states g. property taxes paid on the corporate headquarters building in seattle h. a direct contribution to the international committee of the red cross for refugee relief i. deferred income tax, shown as a deduction on the u.s. parent’s consolidated income tax j. withholding taxes withheld by germany on dividends paid to a united kingdom parent corporation

When used-car dealers signal the quality of a used car with a warranty, a. buyers believe the signal because the cost of a false signal is high b. it is not rational to believe the signal because some used-car dealers are crooked c. the demand for lemons is eliminated d. the price of a lemon rises above the price of a good used car because warranty costs on lemons are greater than warranty costs on good used cars