Which of the following is a simultaneous decision game?

The existence of externalities is due mainly to the fact that

A) monopolies tend to produce too little of a good anyway. B) the optimal level of pollution is zero. C) pollution is not a serious problem. D) property rights are poorly defined.

When comparisons are made between the earnings of whites and minorities with the same age, quantity of schooling, marital status, sector of employment, union and industry status, regional location, and annual hours worked, recent studies indicate that

a. the corrected earnings of minority men are about two-thirds the earnings of white men. b. earnings differentials between whites and minorities are due almost exclusively to employment discrimination. c. the corrected earnings of Mexican-Americans, Asian-Americans, and American Indians were between 7 and 9 percent less than the earnings of similar white men. d. most minority men now have higher earnings than white men.