Imagine two friends, Marcus and Marty, who are providing goods for a bake sale. They can take either brownies or cookies, and payoffs (the profits that they will split) are as given in the table: 
a. What are the pure-strategy Nash equilibria if any?
b. What is the mixed-strategy Nash equilibrium?
Definitions:
Allocative Efficiency
A state of the economy in which production represents consumer preferences and goods and services are distributed optimally according to the needs and desires of society.
Consumer Surplus
The gap between the price consumers are prepared to pay for a product or service and the actual amount they spend, indicating the advantage to consumers.
Producer Surplus
The difference between what producers are willing to sell a good for and the actual price they receive, measuring the benefit to producers from participating in the market.
Marginal Benefit
The extra value or enjoyment gained by using one more unit of a certain good or service.
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