The M1 money supply is defined to be the sum of currency, traveler's checks, and:

In the above figure, in order for this country to move from production possibilities frontier PPF1 to PPF2, it might

A) increase the skills and productivity of its work force. B) put all unemployed resources to work producing desired output. C) engage in exchange with other nations. D) increase the average level of prices for all goods produced and consumed.

Many fast-food restaurants have signs on their cash registers that read, "Your meal is free if the cashier does not give you a receipt". What might be the purpose of such a sign? Hint: there is a moral hazard problem here

What will be an ideal response?