If a firm decreases its plant size and finds that its long-run average costs have
decreased, then
A) its labor is more productive in a smaller plant.
B) its diseconomies of scale are less.
C) the firm should reduce its plant size even more.
D) the firm is now profitable.
Studies have shown that drinking one glass of red wine per day may help prevent heart
disease. Assume this is true, and favorable weather has increased the grape harvest of
California vineyards. In the market for red wine, these two developments would
A) increase demand and decrease supply, resulting in an increase in the equilibrium
quantity and a decrease in the equilibrium price of red wine.
B) increase demand and increase supply resulting in an increase in the equilibrium
quantity and an uncertain effect on the equilibrium price of red wine.
C) increase demand and increase supply, resulting in an increase in the equilibrium
price and an uncertain effect on the equilibrium quantity of red wine.
D) increase demand and increase supply, resulting in an increase in both the equilibrium
price and the equilibrium quantity of red wine.