If the price of a good ____________, the demand for its complements will __________

A new chain-weighted measure of real GDP

a. was introduced by the Bureau of Economic Analysis in 1995. b. uses the average of prices in a given year and prices in the previous year instead of using prices in a base year as weights. c. differs greatly from previous measures that utilized the base year method. d. Both a and b e. All of the above

To maximize expected profit, a perfectly competitive firm with a random marginal cost and known demand should produce at the level that sets ________ equal to ________.

A) marginal cost; marginal revenue B) expected marginal cost; marginal revenue C) expected marginal cost; expected marginal revenue D) marginal cost; expected marginal revenue