Average productivity of labor is measured as the additional output produced by an additional worker.

The manner in which a nation's economy reacts when the measured factors are changed affects almost every individual

Indicate whether the statement is true or false

Many people sell goods through eBay at prices that are higher than the prices they paid for these goods. Economists consider these transactions as

A) examples of exploitation of buyers of the goods by the sellers. B) examples of arbitrage. C) unproductive since the goods sold have been produced in the past. D) examples of zero-sum games, since the value of the goods sold is exactly equal to the prices paid for them.