If the marginal propensity to consume is 0.6, what is the value of the expenditure multiplier?

Everything else equal, if the dollar depreciates against the Chinese yuan:

A) China will stop trading with the U.S. B) China will import more from the U.S. and will export less to the U.S. C) China will export more to the U.S. and will import less from the U.S. D) the Chinese government will buy yuan from the foreign exchange market.

The addition to revenue obtained from firing an additional unit of labor is

A) total product. B) marginal revenue product. C) marginal factor cost. D) marginal physical product of labor.