The services produced by spouses who cook, clean, and otherwise maintain homes are
not counted in the gross domestic product because
A) services are not tangible goods.
B) there is no accepted and reliable way to measure their value.
C) they do not add to the wealth of the nation.
D) this would entail double-counting, since such spouses usually receive free room and
board.
E) while they are useful services, they do not represent productive labor.
Halibut tends to be much more expensive than cod. According to the economic way of
thinking, relatively high halibut prices can be explained by
A) using the theory of supply and demand.
B) pointing out the causeHalibut boats are often more expensive than boats used to fish
for cod.
C) acknowledging the price differential is unfair to consumers of halibut.
D) acknowledging the price differential is unfair to cod fishermen.
According to the text, in the absence of uncertainty, no one can obtain a profit from the