When people look at what has just happened in the economy to conjecture what is about to happen, it is known as ______.

In a perfectly competitive market, if market price is lower than the average total cost of production:

A) new firms will enter the market. B) existing firms will leave the market. C) all existing firms will earn positive economic profits. D) all existing firms will earn zero economic profits.

A depreciation of the U.S. dollar will result in an increase in aggregate expenditures in the country

a. True b. False Indicate whether the statement is true or false