A decade ago, five firms supplied amateur color film in the...

A decade ago, five firms supplied amateur color film in the United States: Kodak, Fuji, Konica, Agfa, and $3 \mathrm{M}$. From a technical viewpoint, there was little difference in the quality of color film produced by these firms, yet Kodak's market share was 67 percent. The own price elasticity of demand for Kodak film was -2.0 and the market elasticity of demand was -1.75 . Suppose that in the $1990 \mathrm{~s}$, the average retail price of a roll of Kodak film was $$\$ 6.95$$ and that Kodak's marginal cost was $$\$ 3.475$$ per roll. Based on this information, discuss industry concentration, demand and market conditions, and the pricing behavior of Kodak in the $1990 \mathrm{~s}$. Do you think the industry environment is significantly different today? Explain.

Key Concepts

Industry Concentration

Industry concentration examines how much of the market is controlled by a few firms. In this context, Kodak's 67 percent market share in an industry that still had several players indicates a high level of concentration, suggesting a dominant position. A highly concentrated market can result in less competitive pressures and more pricing power for the dominant firm, particularly when product differentiation is minimal.

Price Elasticity of Demand

Price elasticity of demand quantifies the sensitivity of quantity demanded to changes in price. An own price elasticity of -2.0 suggests that a 1% increase in Kodak's price leads to a 2% decrease in the quantity demanded for Kodak film, reflecting a relatively elastic demand. The market elasticity of -1.75 indicates a similar responsiveness in the overall market. These elasticities highlight how price changes can significantly affect sales volumes, which is essential for setting optimal pricing strategies in competitive industries.

Marginal Cost and Pricing Behavior

Marginal cost is the incremental cost of producing one more unit of a product, and it plays a key role in pricing decisions. With a retail price of $6.95 and a marginal cost of $3.475 per roll, Kodak was able to maintain a substantial markup over cost. This pricing strategy, in conjunction with its dominant position, allowed Kodak to capture rents from its market power. The relationship between marginal cost and price is fundamental to understanding firm behavior in setting prices above cost to maximize profits.

Market Evolution and Technological Change

Market evolution involves changes in industry structure and technology over time. The competitive dynamics in the film industry during the 1990s, with stable demand conditions and high product similarity among competitors, differ markedly from today's environment, where digital technologies have disrupted traditional markets. Technological advancement has fundamentally altered consumer preferences and reduced barriers to entry, leading to a radically different market structure and competitive behavior in imaging and related industries.

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