If the marginal propensity to save in a closed economy is .25 and a lump-sum tax is imposed, the slope of the economy's aggregate expenditures schedule will be:

The figure above shows the market for gasoline. The government has imposed a tax on gasoline

a) What is the amount of the tax per gallon of gasoline? b) How much of the tax is paid by consumers? How much is paid by producers? Which is more elastic, the supply or demand for gasoline?

Which of the following is the most important of the over-the-counter markets?

A) the S&P 500 B) the Chicago Mercantile Exchange C) New York Stock Exchange D) the NASDAQ