As a consumer consumes more and more of a product in a particular time period, eventually marginal utility

Someone can become an inefficient producer of a particular good by becoming an extremely potent producer of some other good

A) if efficiency and inefficiency are not calculated in terms of opportunity costs. B) if efficiency is measured in terms of labor hours required to produce each good. C) if a larger output of one good entails a smaller output of the other. D) if the demand for one of the goods declines.

Suppose a drop in prices in the stock market makes people feel less financially secure. This would cause __________ the economy's AD curve

A) movement down along B) movement up along C) a rightward shift of D) a leftward shift of