Do Consumers Respond to Marginal or Average Price? Evidence from Nonlinear Electricity Pricing

Working Paper: NBER ID: w18533

Authors: Koichiro Ito

Abstract: Nonlinear pricing and taxation complicate economic decisions by creating multiple marginal prices for the same good. This paper provides a framework to uncover consumers' perceived price of nonlinear price schedules. I exploit price variation at spatial discontinuities in electricity service areas, where households in the same city experience substantially different nonlinear pricing. Using household-level panel data from administrative records, I find strong evidence that consumers respond to average price rather than marginal or expected marginal price. This sub-optimizing behavior makes nonlinear pricing unsuccessful in achieving its policy goal of energy conservation and critically changes the welfare implications of nonlinear pricing.

Keywords: nonlinear pricing; electricity pricing; consumer behavior; energy conservation

JEL Codes: L11; L51; L94; L98; Q41; Q48; Q58


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
suboptimal response to average price (D41)efficiency costs (D61)
average price (P22)consumer response (D16)
marginal price (D41)consumer response (D16)
expected marginal price (D41)consumer response (D16)
average price (P22)marginal price effect (D40)
average price (P22)consumption (E21)

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