Inventories — goods produced but not sold — are included in GDP because we want to measure total production, not just what is purchased

When economists use the term "ceteris paribus," they mean that: a. the causal relationship between two economic variables cannot be determined. b. the analysis is true for the individual but not for the economy as a whole

c. all other variables except the ones specified are assumed to be constant. d. their conclusions are based on normative rather than positive economic analysis.

Technological changes that increase productivity shift the

A. Marginal cost curve upward. B. Production function downward. C. Marginal physical product curve downward. D. Average total cost curve downward.