Which of the following can create a monopoly? I. high prices II. public franchise III. patent IV. government license

The difference between a stock and a flow is

A) a stock is something measured at one point in time while a flow is something that is expressed per unit of time. B) a stock is something measured at one point in time while a flow is something that is fixed. C) a stock is expressed per unit of time while a flow is measured at one point in time. D) a stock refers to the solid inventory firms have on hand while a flow refers to the liquid inventory firms have on hand.

If the production of oranges reduces global warming, then the equilibrium quantity of oranges will be ________ the socially optimal quantity.

A. lower than B. equal to C. more valuable than D. higher than