The factor(s) which cause(s) a movement along the demand curve include(s):
a. increase in level of advertising
b. decrease in price of complementary goods
c. increase in consumer disposable income
d. decrease in price of the good demanded
e. all of the above
Which of the following statements about cost functions is true?
a. Variable costs will always increase in direct proportion to the quantity of output
produced.
b. The less capital equipment employed in the production process relative to labor and
other inputs, the longer will be the period of time required to increase significantly the
scale of operation.
c. The shape of the firm’s long-run cost function is important in decisions to expand the
scale of operations.
d. none of the above
Even though insignificant explanatory variables can raise the adjusted R2of a demand
function, one should not interpret their effects on the regression when
a. testing marketing hypotheses about the determinants of demand
b. analyzing inventory relative to capacity requirements
c. forecasting unit sales for operations planning
d. sales revenue reaches its peak
e. planning for capital budgets