When economists refer to people making decisions at the margin, they mean that we compare ________ benefits with ________ costs

In the short-run macro model, which of the following increases when government spending increases?

a. The interest rate b. Investment spending c. Taxes d. Spending on consumer durables e. The money supply

Which statement most accurately describes what happens when both supply and demand curves shift?

a. When both curves shift, typically we can determine the overall effect on price and on quantity. b. When both curves shift, typically we can determine the overall effect on price but not on quantity. c. When both curves shift, typically we can determine the overall effect on price or on quantity, but not on both. d. When both curves shift, typically we can determine the overall effect on quantity, but not on price.