In the case of an appreciating domestic currency, central banks often sell foreign currencies in exchange for domestic currency to stop the appreciation

At the full-employment equilibrium in the labor market

A) there is no unemployment. B) there are no job vacancies. C) there is neither a shortage nor a surplus of labor. D) the money wage rate equals the real wage rate.

If the price of oil goes up by 50% and the quantity demanded goes down by 25%, the absolute value of the price elasticity of demand is

A) 0.25. B) 0.50. C) 0.75. D) 1.00.