Economies of scale are said to exist when inputs are increased by some percentage and output increases by a(n) __________ percentage, causing unit costs to __________.

What is economic value of an exchange?

If those who are poor at any one time are poor only temporarily, then their plight is only temporary. This statement is based on which of the following assumptions?

a. Many spells of poverty are relatively short-lived. b. Government spending in the economy is inadequate. c. All phases of the business cycle are temporary. d. Education infrastructure in the economy is poor. e. Once people fall below the poverty line, it is almost impossible for them to rise above it.