According to this Application, three economists that studied data from the countries in the OECD found the value of the multiplier to be

To find social costs

A) internal and private costs have to be added together. B) internal and external costs have to be added together. C) internal and implicit costs have to be added together. D) internal and production costs have to be added together.

Barter system is less desirable than using money for exchange because: a. it is a more inefficient and a time-consuming process

b. gold and silver are risky and inconvenient to transport. c. it tends to promote inflation. d. gold and silver are relatively scarcer than other commodities.