If your income increases from $40,000 to $48,000 and your consumption increases from $35,000 to $39,000 . your marginal propensity to consume (MPC) is:

If at a given moment, no matter what the price, producers cannot change the quantity supplied, the momentary supply

A) has zero elasticity. B) has unit elasticity. C) has infinite elasticity. D) does not exist.

Which of the following will shift the demand curve for a good?

A) a change in the technology used to produce the good B) a decrease in the price of a complementary good C) an increase in the price of the good D) a decrease in the price of the good