Since 1960, the natural rate of unemployment in the U.S. has been between

Advertising costs of a monopolistically competitive firm are ________

A) greater than a monopoly and the same as a perfectly competitive firm B) greater than a perfectly competitive firm C) less than a perfectly competitive firm D) the same as a monopoly

The exchange rate between currencies depends on

A) the interest rate that can be earned on deposits of those currencies. B) the interest rate that can be earned on deposits of those currencies and the expected future exchange rate. C) the expected future exchange rate. D) national output. E) the interest rate that can be earned on deposits of those countries and the national output.