Which branch of study helps in economic decision making when an individual's behavior determines the payoffs to others?

By agreeing to cooperate and abide by joint decisions, cartels most often

a. increase concentration ratios b. increase the market share of member firms c. increase the efficiency of production d. behave like a monopolist e. appear oligopolistic

Which of the following statements is false?

a. Political activities consistent with economic efficiency tend to emerge naturally from the unconstrained democratic political process. b. Constitutional rules establishing procedures and limiting the ability of the political process to engage in redistributive activities can improve the economic efficiency of government. c. Rent-seeking activity tends to retard the economic prosperity of a nation because it takes resources away from productive private sector activities. d. Unconstrained democratic governments often enact special-interest programs that waste resources and impair the standard of living of a country.