Assume that gross national product amounts to $4300.5 billion, depreciation is $550.1 billion, and indirect taxes are $399.3 billion. Then, net national product amounts to

Which of the following statements is incorrect?

a. Budget deficits raise the national debt. b. The concepts of deficit and debt are closely related. c. Getting rid of the deficit eliminates accumulated debt. d. Budget surpluses lower the national debt.

The optimal amount of pollution is NOT zero because

A) it has been found that pollution in moderate amounts actually has positive benefits. B) there are no benefits to anyone from having zero pollution. C) zero pollution would be too costly. D) we don't have the political structure that could accomplish the goal.