국제무역
Price Discrimination with Costless Resale
This paper shows that income effects create an endogenous barrier to arbitrage, allowing price discrimination to survive costless resale. A monopolist sells an indivisible good to consumers with heterogeneous incomes who can freely resell. When the good is strictly normal, a consumer‘s reservation price to resell increases as the purchase price decreases―lower prices leave buyers wealthier and raise their valuation of the good. The monopolist exploits this by subsidising low-income consumers to raise their reservation prices to a target that high-income consumers must also pay. The optimal schedule increases dollar-for-dollar with income in the subsidised segment, weakly dominates uniform pricing, and achieves the first-best allocation when the entire market is served. We show the mechanism extends beyond income effects: low substitutability with market alternatives generates large reservation-price responses even when income sensitivity is modest. Sustaining discrimination requires market power at the individual level―consumer-specific quantity limits―not merely aggregate output restrictions. Extensions examine multiple monopolists and endogenous privacy choices.
많이 본 자료
![[2025.07] 대출규제](/userdata/main/incContent/sideLink/23/aaaqQGcnBTcOc8zW9uLNz20251015165742zqfnw.png)
![[사람이 되고 싶어요2] 환율의 변화](/userdata/main/incContent/sideLink/22/aaaqQGcnBTcOc8zW9uLNz20251015165408vtzoa.jpg)
