Charlie Consumes Apples and Bananas $\mathbf{U}\left(X_{A}, X_{B}\right)=x_{A} x^{2} B$

question 9

Multiple Choice

Charlie consumes apples and bananas. His utility function is $\mathbf{U}\left(X_{A}, X_{B}\right) =x_{A} x^{2} B$
-refer to scenario above, Charlie's utility function is x_Ax_B.The price of apples used to be $1, the price of bananas used to be $2, and his income used to be $40.If the price of apples increased to $5 and the price of bananas stayed constant, the substitution effect on Charlie's apple consumption would reduce his consumption by

• A)8 apples.
• B)16 apples.
• C)13 apples.
• D)4 apples.
• E)None of the above.

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Definitions:

Tradable Permits

Government-issued rights or allowances that permit the holder to emit a certain amount of a substance; can be bought, sold, or traded.

Common Resource

A resource like air or water that is not owned by anyone, but is available for use by everyone, often leading to overuse and depletion.

Marginal Social Benefit

The extra advantage to the community when one additional unit of a product or service is made.

Negative Externalities

External costs.