When the unemployment rate is less than the natural unemployment rate

A) the output gap is positive.
B) is possible because it is impossible for the unemployment rate to be less than the natural rate.
C) the output gap equals zero. the output gap is negative.
D) None of the above.

When in college, greg dreamed of rowing in the olympics and becoming a surgeon. now at age 48, he continues to enjoy rowing, although he never made it to the olympics and he works as an anesthesiologist. his wife and kids are healthy and he is basically content. according to erikson, he is most likely to experience

To what is the growth of civilization most clearly traced

On average, being married has a(n) effect on happiness.