When two goods are perfect substitutes, the
a. indifference curve is a horizontal straight line.
b. marginal rate of substitution is constant.
c. indifference curve is a vertical straight line.
d. Both a and b are correct.
b
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The long run is a period of:
a. at least one year. b. sufficient length to allow a firm to expand output by hiring additional workers. c. sufficient length to allow a firm to alter its plant size and capacity and all other factors of production. d. sufficient length to allow a firm to transform economic losses into economic profits by hiring better workers.
Which of the following statements best describes the belief among economists about trade?
a. The common belief among economists is that it is better to embrace the gains from trade, and then deal with the costs and trade-offs with other policy tools than it is to cut off trade to avoid the costs and trade-offs. b. The common belief among economists is that it is better to cut off trade to avoid the costs and trade-offs than it is to embrace the gains from trade and then deal with the costs and trade-offs with other policy tools. c. The common belief among economists is that it is better to deal with the costs and trade-offs of trade with other policy tools before embracing the gains from trade, than it is to cut off trade to avoid the costs and trade-offs. d. The common belief among economists is that it is better to cut off trade to avoid the costs and trade-offs, deal with the costs and trade-offs with other policy tools, and then embrace the gains from trade.
The law of demand (downward-sloping demand curve)is based on the idea of
a. maximum total utility b. minimum marginal utility c. total utility divided by quantity of the good consumed d. law of diminishing marginal utility e. consumers minimize total utility
A price floor is: a. the lowest legal price that can be paid in markets for goods and services. b. the highest legal price that can be charged in markets for goods and services. c. decided by the sellers of a good or service
d. decided by the consumers of a good or service.