The additional utility gained from consuming an additional unit of a good is called（）

Economists use the term marginal utility to mean______.

A．additional satisfaction gained divided by additional cost of the last unit

B．total satisfaction gained when consuming a given number of units

C．additional satisfaction gained by the consumption of one more unit of a good

D．the process of comparing marginal units of all goods which could be purchased

When economists speak of the utility of a certain good, they are referring to______.

A．the demand for the good

B．the usefulness of the good in consumption

C．the satisfaction gained from consuming the good

D．the rate at which consumers are willing to exchange one good for another

A、$1.00

B、$1.50

C、$2.0

D、$0.50

Utility refers to______.

A．a shift in the demand curve for a good

B．a decline in the supply of a good

C．the satisfaction a consumer receives from consuming a good

D．the usefulness of a good

Sandy derives utility from consuming "all other goods," g, and clean air (measured by particulate matter removed per m3), a, as measured by the utility function U(g,a) = g0.6a0.4. The price of "all other goods" is $20 and the price of clean air (abatement) equals $10. Brian is the only other consumer in the market for clean air and demands 10 units of clean air. What is the market demand for clean air？

A、Total market demand is 14 units of clean air.

B、Total market demand is 12 units of clean air.

C、Total market demand is 10 units of clean air.

D、Total market demand is 16 units of clean air.

A、is not maximizing his utility.

B、is experiencing diminishing marginal utility.

C、should not consume any more oysters.

D、has consumed too many oysters.

A、Joe is buying too many cans of Sprite.

B、Joe is buying too many cans of Coke.

C、Joe is maximizing his utility if his marginal utility from the 6th can of Sprite he buys is less than his marginal utility from the 30th can of Coke he buys.

D、Joe is maximizing his utility if his marginal utility from the 6th can of Sprite he buys is equal to his marginal utility from the 30th can of Coke he buys.

From early October,about_____people have lost their jobs in utility sector.

A．800

B．160,000

C．1300

D．2100

A、total revenue obtained from an additional unit of that input.

B、quantity of output obtained from an additional unit of that input.

C、profit obtained from an additional unit of that input.

D、total revenue obtained from an additional unit of that input.