Welfare economics explains which of the following in the market for televisions？A.The

The designation "natural" implies that the natural rate of unemployment

A.is desirable.

B.does not go away on its own even in the long run.

C.is constant over time.

D.is impervious to economic policy.

Imagine that someone offers you $X today or $1,500 in 5 years. If the interest rate is 4 percent, then you would prefer to take the $X today if and only if

A.X >1,338.26.

B.X >1,232.89.

C.X >1,120.89.

D.X >1,055.56.

Other things the same, when the interest rate rises,

A.people would want to lend less, making the supply of loanable funds decrease.

B.people would want to lend more, making the quantity of loanable funds supplied increase.

C.people would want to lend less, making the quantity of loanable funds supplied decrease.

D.people would want to lend more, making the supply of loanable funds increase.

Last year the imaginary nation of Panglossia had real GDP of 400 billion. This year it had real GDP of 472.5 billion. Which of the following changes in population is consistent with a 5 percent growth rate of real GDP per person over the last year?

A.The population increased from 80 million to 90 million.

B.The population decreased from 75 million to 72 million.

C.The population decreased from 60 million to 50 million.

D.The population increased from 70 million to 80 million.