For providing their resources to firms, workers, loanable funds' suppliers, landowners, and entrepreneurs, receive (in the same order)

Long-run average cost is never greater than short-run average cost because in the long run,

A) capital costs equal zero. B) the firm can move to the lowest possible isocost curve. C) wages always increase over time. D) wages always decrease over time.

Bid-rigging is more likely when

a. auctions are larger b. auctions are infrequent c. auctions generate the same set of potential bidders d. the auctioneer is paid on commission rather than a fixed fee