An increase in the marginal physical product of capital increases the demand for loanable funds

The optimal output of a collective consumption good is found by_____

a. equaling marginal cost and the vertical summation of all individual's demand curves b. equaling price and marginal cost c. equaling marginal cost and the horizontal summation of all individual's demand curves d. equaling marginal cost and long-run average total cost

When cash is withdrawn from a checkable-deposit account at a bank:

A. The money supply M1 increases B. The money supply M1 decreases C. The money supply M1 does not change but its composition changes D. The composition of money supply M1 does not change