Comparative advantage is the rule that ordinarily prevents a nation from independently producing all of the goods it requires

All of the following were provisions of the 2009 American Reinvestment and Recovery Act except

A) a temporary extension of unemployment benefits. B) expanded tax credits for parents for their children's college tuition. C) a reduction in government-funded infrastructure spending. D) a reduction in employees' payroll tax contributions.

A necessary condition for "perfect competition" is

A) price searchers. B) price takers. C) legal restrictions on entry into the market. D) a small number of huge firms. E) widespread and long-run economic profits.