February 2016
Beginner to intermediate
500 pages
33h 40m
English
We can derive Equation 4.6 using calculus. Lisa’s objective is to maximize her utility, U(B, Z), subject to (s.t.) a budget constraint:
where B is the number of burritos she buys at price [&p_{B},&] Z is the number of pizzas she buys at price [&p_{Z},&] Y is her income, and [&Y|=|p_{B}B|+|p_{Z}Z&] is her budget constraint. This mathematical statement of her problem shows that her choice variables are B and Z, which appear under the “max” term in the equation.
Because we cannot directly solve a constrained maximization problem, we want to convert Equation 4B.1 into an unconstrained problem by substituting the budget constraint into the utility function. Using algebra, ...
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