15) Suppose that the organic-produce industry is composed of a large number of small
firms. In recent years, these firms have suffered economic losses, and many sellers have
left the industry. Economic theory suggests that these conditions will
a.shift the demand curve outward so that price will rise to the level of production cost.
b.cause the remaining firms to collude so that they can produce more efficiently.
c.cause the market supply to decline and the price of organic produce to rise.
d.cause firms in the organic-produce industry to suffer long-run economic losses.
16) Economists face an obstacle that many other scientists do not face. What is that
obstacle?
a.It is often difficult to formulate theories in economics.
b.It is often impractical to perform experiments in economics.
c.Economics cannot be addressed objectively; it must be addressed subjectively.
d.The scientific method cannot be applied to the study of economics.
17) The following diagram shows two budget lines: A and B.
Which of the following could explain the change in the budget line from A to B?
a.a decrease in the price of X
b.an increase in the price of Y
c.a decrease in the price of Y
d.More than one of the above could explain this change.
18) A typical consumer consumes both coffee and donuts. After the consumer’s income
decreases, the consumer consumes more coffee but fewer donuts than before. For this
consumer, coffee is a normal good, but donuts are an inferior good.
a.True
b.False