If the price of oil, a close substitute for coal, increases then: a. the demand curve for coal will shift to the right.
b. equilibrium price and quantity of coal will not change.
c. supply curve for coal will shift to the right.
d. demand curve for coal will shift to the left.
e. supply curve of coal will shift to the left.

Arecession is defined as a period in which

Fractional reserve banking which of the following statements about fractional reserve banking are correct? check all that apply. fractional reserve banking allows banks to create money through the lending process. fractional reserve banking does not allow banks to hold excess reserves. fractional reserve banking allows banks to create additional wealth by lending some reserves. fractional reserve banking relies on everyone not withdrawing their money at the same time.

Suppose life expectancy in years (l) is a function of two inputs, health expenditures (h) and nutrition expenditures (n) in hundreds of dollars per year. the production function is upper l equals ch superscript 0.40 baseline upper n superscript 0.60l=ch0.40n0.60. beginning with c = 1, a health input of $400400 per year (hequals=44) and a nutrition input of $400400 per year (nequals=44), show that the marginal product of health expenditures and the marginal product of nutrition expenditures are both decreasing. the marginal product of health expenditures when h goes from 44 to 55 is nothing, and the marginal product of health when h goes from 66 to 77 is nothing. (round your answers to three decimal places.)