The trade balance must equal the level of private and public saving in the country

If a technological advance lowers a firm's production costs, why do prices typically fall? Shouldn't the firm maintain the same price and earn economic profit?

Which of the following would most likely increase income inequality?

A. Improvements in public education. B. Greater monopoly power among product sellers. C. Greater equality in the distribution of wealth. D. Fewer differences in working conditions across occupations.