Economists use the term capital to describe that factor of production that includes human-made resources such as factories, buildings, machinery and tools

The long-run Phillips curve is a

A) straight line with a 45 degree slope showing the long-run relationship between the inflation rate and the expected inflation rate. B) vertical line that shows the relationship between inflation and unemployment when the economy is at full employment. C) vertical line indicating a positive relationship between inflation and unemployment. D) horizontal line indicating a positive relationship between inflation and unemployment. E) horizontal line that shows the relationship between inflation and unemployment when the economy is at full employment.

Pollution problems generally represent

A) cases of good versus evil. B) cases of villain versus victim. C) morally neutral disagreements over competing uses of a scarce resource. D) Both a and b are correct.