In the Baumol-Tobin analysis of the demand for money, either an increase in ________ or an increase in ________ increases money demand

If marginal cost is less than average total cost,

a. marginal cost must be falling b. average total cost must be increasing c. average variable cost equals average total cost d. average variable cost must be decreasing e. average variable cost may be increasing or decreasing

The gains from trade are divided in proportion to the price changes that trade brings to the trading countries.

Answer the following statement true (T) or false (F)