Consider the demand curves for soft drinks shown in the figure above. Suppose the economy is at point a. An increase in the price of a soda results in a movement to a point such as

An __________ is a curve that shows all the combinations of inputs that, when used in a technologically efficient way, will produce a certain level of output.

Fill in the blank(s) with the appropriate word(s).

A cost that has already been made and cannot be recovered is called a

A) variable cost. B) fixed cost. C) sunk cost. D) marginal cost.