微经书里的一道题
Ben allocates his lunch budget between two goods,pizza and burritos.
a. Illustrate Ben's optimal bundle on a with pizza on the horizontal axis.
b.suppose now that pizza is taxed,causing the price to increase by 20 percent. Illustrate Ben's new optimal bundle.
c. instead that pizza is rationed at a quantity less than Ben's desired quantity. Illustrate Ben's new optimal bundle.
d.Depict a situation where Ben is indiferrent between PIZZA being rationed and pizza being taxed.

最后一题啥意思?
是不是征税时的最大效用曲线正好经过限制配额的最大pizza供应点?