Intermediate Microeconomics · 免费预览

自身价格需求与吉芬前沿

固定收入并改变一种价格，预算线随之转动，选择组合描绘出价格供给曲线；把某种商品的数量与其自身价格对应起来，就得到其需求曲线：对普通商品而言需求曲线向下倾斜，而在极端的低档品情形下，对吉芬商品则向上倾斜。

1. Pivoting the budget

Pivoting the budget

Ordinary and Giffen behavior

The cross-price companion

Demand curves as objects with rules

For u equal to x1 x2 with m 100 and p2 1, demand is x1 equals 50 over p1. What shape and elasticity?

Which combination of properties must a Giffen good have?

What does Cobb-Douglas imply for the cross-price derivative of demand, and what breaks this in richer families?

Coffee's price falls and consumers buy more coffee. Later, incomes rise and the whole coffee demand curve moves right. Which is a shift?

For u equal to x1 x2 with m 100 and p2 1, compute x1 when p1 equals 2, and write the number.

Same consumer, p1 rises to 5, compute the new quantity, and write the number.

For x1 star equal to 50 over p1, what is the own-price elasticity everywhere along the curve?

For x1 star equal to 50 over p1, the price falls from 2 to 1. What is the move?

For the same consumer, the price of good two rises from 1 to 2 while p1 stays 2. What happens to x1?

Along the demand curve x1 star equal to 50 over p1, what does total spending on good one do?

For x1 star equal to 50 over p1, compute x1 when the price is 1, and write the number.

For x1 star equal to 50 over p1, compute x1 when the price is 10, and write the number.

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