Analyzing the behavior of the firm enhances our understanding of a. what decisions lie behind the market supply curve. b. how financial institutions set interest rates. c. whether resources are allocated fairly. d. how consumers allocate their income to purchase scarce resources.

Which of the following best explains how the invention of money affected the barter system? a. the invention of money supplemented the barter system by providing a nonperishable medium of exchange b. the invention of money completely replaced the barter system with a free-market system c. the invention of money had no effect on the barter system d. the invention of money drastically reduced the value of goods used in the barter system 2b2t

What is the eventual effect on real gdp if the government increases its purchases of goods and services by $80,000? assume the marginal propensity to consume (mpc) is 0.75. $ what is the eventual effect on real gdp if the government, instead of changing its spending, increases transfers by $80,000? assume the mpc has not changed. $ an increase in government transfers or taxes, as opposed to an increase in government purchases of goods and services, will result in an identical eventual effect on real gdp. a smaller eventual effect on real gdp. a larger eventual effect on real gdp. no change to real gdp.

Suppose that xtel currently is selling at $40 per share. you buy 500 shares using $15,000 of your own money, borrowing the remainder of the purchase price from your broker. the rate on the margin loan is 8%. a. what is the percentage increase in the net worth of your brokerage account if the price of xtel immediately changes to (a) $44; (b) $40; (c) $36? (leave no cells blank - be certain to enter "0" wherever required. negative values should be indicated by a minus sign. round your answers to 2 decimal places.) b. if the maintenance margin is 25%, how low can xtel’s price fall before you get a margin call? (round your answer to 2 decimal places.) c. how would your answer to requirement 2 would change if you had financed the initial purchase with only $10,000 of your own money? (round your answer to 2 decimal places.) d. what is the rate of return on your margined position (assuming again that you invest $15,000 of your own money) if xtel is selling after one year at (a) $44; (b) $40; (c) $36? (negative values should be indicated by a minus sign. round your answers to 2 decimal places.) e. continue to assume that a year has passed. how low can xtel’s price fall before you get a margin call? (round your answer to 2 decimal places.)