The above figure shows the Lorenz curve for wealth for the nation of Rusha. What percent of wealth is owned by the wealthiest quintile?

When a non-discriminating monopolist is maximizing profit, its marginal revenue

a. must be positive b. must be negative c. must equal zero d. may be either positive or negative e. must be upward sloping

The decisions of the US and Soviet Union to build nuclear weapons is much like the prisoners' dilemma

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