Background
The kinked demand curve is an economic theory explaining the behavior of firms in an oligopoly with respect to their pricing strategies. It illustrates how firms may face a demand curve with a different elasticity for price increases compared to price decreases.
Historical Context
The kinked demand curve theory was introduced by economist Paul M. Sweezy in 1939. Sweezy observed that in an oligopolistic market structure, the competitive dynamics between firms create an unusual demand curve with distinct characteristics that influence firms’ pricing decisions.
Definitions and Concepts
A kinked demand curve is a demand curve perceived by a firm operating under the assumption that rivals will not follow its price increases but will follow its price cuts. As a result, the firm experiences a more elastic demand for price increases and a less elastic demand for price cuts.
Key Characteristics:
- Elasticity: The demand curve is more elastic for price increases and less elastic for price decreases.
- Discontinuity in Marginal Revenue: The point of the kink leads to a sudden drop in marginal revenue, which complicates firms’ pricing decisions.
- Sticky Prices: This phenomena implies that prices in such a market tend to remain stable because small cost fluctuations do not provide enough incentives for price changes.
Major Analytical Frameworks
Classical Economics
Classical economists focused less on market structures like oligopoly and more on competitive markets, where the kinked demand curve does not typically apply due to its specific assumptions about firms’ behavior.
Neoclassical Economics
Neoclassical models incorporate oligopolies but often emphasize game theory as a means of understanding firms’ strategic interactions, including price-setting behaviors that align with the kinked demand curve concept.
Keynesian Economics
Keynesian economics largely focuses on the aggregate economy, but the repercussions of sticky prices as observed in the kinked demand curve extend to macroeconomic policies influencing aggregate demand and employment.
Marxian Economics
Marxian economists are concerned with power dynamics and the monopolistic control over markets, which can facilitate the type of non-competitive behavior illustrated by the kinked demand curve in oligopolistic industries.
Institutional Economics
Institutional economists would study the broader institutional frameworks and rules governing firms within an oligopolistic market and how these contribute to features observed in the kinked demand curve.
Behavioral Economics
Behavioral economists might explore the bounded rationality and psychological factors driving firms to adopt the behavior predicted by the kinked demand curve instead of purely profit-maximizing rationales.
Post-Keynesian Economics
Post-Keynesians would look into price stickiness in detail and affirm the kinked demand curve as part of broader issues concerning wages, prices, and distribution inconsistencies in real-world economies.
Austrian Economics
Austrian economists favor market dynamics approximating perfect competition and would critique the kinked demand curve for deviating from consumer sovereignty through conflicted oligopolistic pricing strategies.
Development Economics
In development contexts, this theory could be tangentially relevant when studying firms in developing markets, where oligopolistic structures may impede competitive pricing and economic progression.
Monetarism
Monetarists focus on money supply and its impact on the economy. Price stickiness from kinked demand curve dynamics can elucidate real scenarios where monetary policy does not immediately influence prices.
Comparative Analysis
The kinked demand curve differentiates from other pricing theories in that it prominently features strategic rival responses, leading to a distinctive ‘kink’ and sticky price phenomenon unique to oligopolies. While neoclassical models may straightforwardly suggest price adjustments based on cost, kinked demand theory contextualizes pricing within a competitive response framework.
Case Studies
- Auto Industry: Firms like Toyota and Ford operating under perceived oligopoly conditions demonstrate non-aggressive price wars aligning with kinked demand curve theory.
- Telecommunications: Providers like AT&T and Verizon exemplify the theory through the iterative strategic setting of service prices.
Suggested Books for Further Studies
- “Microeconomics” by Robert S. Pindyck and Daniel L. Rubinfeld
- “Industrial Organization: Theory and Practice” by Don E. Waldman and Elizabeth J. Jensen
- “Oligopoly Pricing: Old Ideas and New Tools” by Xavier Vives
Related Terms with Definitions
- Oligopoly: A market structure characterized by a few firms dominating the industry, often creating a setting for the kinked demand curve.
- Elasticity: The responsiveness of quantity demanded to changes in price.
- Sticky Prices: Prices that do not change easily or readily in response to economic forces such as supply and demand shifts.
- Marginal Revenue
