In the video, Edwin Mansfield notes that one reason why R&D spending by firms has
declined as a percent of national output is that
a. very little is left to invent, since research was so great in the first half of the twentieth
century.
b. most research goes to enhance military spending, which is no longer as important as
it once was.
c. a firm cannot appropriate all the benefits it creates from R&D, because they spill over
to outsiders, so it tends to underinvest in this area.
d. R&D rarely results in marketable products, so increasingly it is being performed in
government research facilities.
e. stagflation has made R&D unprofitable for the smaller firms that carry out the largest
share of this activity.
If the money supply is fixed, increases in the price level
a. raise the purchasing power of the money supply and increase the amount people
spend.
b. reduce the average money cost of each transaction, thus lowering total spending.
c. reduce interest rates; thus, the cost of borrowing money falls, leading to more
consumption and investment.
d. raise the incentive for people to spend on big-ticket items such as appliances,
automobiles, and houses.
e. increase the size of the money balances people want in order to maintain the real
value of their purchases, thus causing interest rates to rise.