Microeconomics · 免费预览
偏好与效用
即使效用没有计量单位，消费者仍然可以对商品组合进行排序，无差异曲线描绘出这种排序，而其陡峭程度衡量了需要多少一种商品来补偿另一种商品的一个单位。
1. Ranking without measuring
Ranking without measuring
2. Marginal utility that fades
Marginal utility that fades
3. Indifference curves
Indifference curves
4. Reading the picture
Reading the picture
5. Ordinal, not cardinal
A student says "bundle A gives me 20 utils and bundle B gives me 10, so A is twice as good as B." Which part of that sentence does standard consumer theory accept, and which does it reject?
6. Diminishing marginal utility
A commuter's marginal utilities from slices of pizza are 40, 30, 20 and 10 utils for slices one through four. What does this pattern imply about her willingness to pay for successive slices?
7. The muffin value of a coffee
Moving along an indifference curve, a consumer gives up 2 muffins to gain her first extra coffee, and gives up 0.5 muffins to gain her third extra coffee, with her marginal utility of muffins constant at 12 utils. Compute her marginal utility of coffee at the third coffee in utils, using MRS times MU of muffins, and write the number.
8. What utils may and may not say
A consumer reports bundle A gives 20 utils and bundle B gives 10 utils. Which statement is legitimate?
9. Where marginal utility slips under
Slices of pizza deliver marginal utilities of 50, 35, 20 and 5 utils. After how many slices does marginal utility first fall below 25 utils?
10. Utility from two slices
A commuter's marginal utilities from pizza slices are 40 for the first, 30 for the second and 20 for the third. Compute her total utility from eating exactly two slices in utils, and write the number.