In 2008, the share of debit cards and prepaid cards in total retail transactions was ________, the share of credit cards was ________, and the share of checks and cash was ________

Suppose that there are only two countries in the world, Heartland and Soulland. The two countries produce only two goods, corn and drill presses. At its current level of production, Heartland must give up production of 1/4 drill press to produce an additional 100 bushels of corn. Soulland must give up 1 drill press to produce an additional 100 bushels of corn. No trade now occurs between the two economies, and both economies are operating on their respective production possibilities frontiers. 89. (Exhibit: Heartland and Soulland) The country with a comparative advantage in the production of corn is:

A) Heartland. B) Soulland. C) neither; they both use the same technology. D) neither; they both use the same amount of resources.

A market structure in which there is one large firm that has a major share of the market and many smaller firms supplying the remainder of the market is called:

A) the Stackelberg Model. B) the kinked demand curve model. C) the dominant firm model. D) the Cournot model. E) the Bertrand model.