According to the search model developed by Stigler, when there are search costs, sellers know that consumers are becoming acquainted with product prices and consequently set the same price. In contrast, if there are no search costs, different prices can persist over time

The implication of Say's law is that

A) a barter economy is the most efficient economy. B) increased consumption today leads to increased production tomorrow. C) overproduction in a market economy is not possible. D) Gross Domestic Product is the same whether we use the expenditure approach or the income approach.

Balance of payments accounts include

A) the net interest income account. B) the current account. C) Both answers A and B are correct. D) Neither answer A nor B is correct.