Joe's income is $500, the price of food (F, y-axis) is $2 per unit, and the price of shelter (S, x-axis) is $100. Which of the following represents his marginal rate of transformation of food for shelter?

A price ceiling in a perfectly competitive market

a. creates more harm for sellers than gain for buyers b. creates more harm for buyers than gain for sellers c. is effective only it if is set above the equilibrium price d. can turn an inefficient outcome into an efficient outcome e. is a Pareto improvement

A prolonged period of drought will shift the long-run aggregate supply curve to the right

a. True b. False Indicate whether the statement is true or false