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Suppose that a chain of auto service stations, Quick-Oil, Inc., has found that its monthly sales volume y (in thousands of dollars) is related to the price p (in dollars) of an oil change by
. Is y increasing or decreasing for all values of
Equilibrium
A state in which all forces or influences are balanced, such as in a market when supply equals demand.
Dominant Strategy
In game theory, an approach that remains optimal for a participant, no matter what tactics are adopted by the others.
Entry-Deterring Price
A strategy involving setting prices low enough to prevent new competitors from entering the market.
Payoff Matrix
A table that displays the potential outcomes and associated payoffs for each player in a game, given the different strategies each player can choose.
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