Jill runs a factory that makes lie detectors in Little Rock, Arkansas. This month, Jill's 34 workers produced 680 machines. Jill's average product of labor equaled ________ lie detectors per worker

An economy in which output has decreased and prices have decreased would suggest a:

A. decrease in short-run aggregate supply. B. increase in aggregate demand. C. increase in short-run aggregate supply. D. decrease in aggregate demand.

If an oligopolist's demand curve has a "kink" in it, then:

A. the oligopolist need not fear entry into the industry by new firms. B. the oligopolist's marginal cost curve has a break in it. C. the oligopolist's competitors will not react to its price changes, either up or down. D. over some interval, a change in the oligopolist's marginal cost will not cause a change in the oligopolist's profit-maximizing price.