Hotelling Law
Hotelling's Law, or the Law of Spatial Competition, explains how firms selling identical products strategically locate themselves in a market to capture the most customers, often leading to convergence at a central point.
What is Hotelling Law?
Hotelling’s Law, also known as the Law of Spatial Competition, is an economic model that describes how firms selling identical products may strategically locate themselves to maximize profits in a market where consumers are distributed geographically. Developed by Harold Hotelling in 1929, the law suggests that under certain conditions, competitors will converge to the same location.
The core idea is that firms aim to minimize the transportation costs or inconvenience for consumers. If consumers are uniformly distributed along a line and each consumer buys from the seller closest to them, two firms selling identical products will have an incentive to locate at the center of the market. This strategic placement is a result of minimizing the number of customers lost to the competitor by reducing the maximum distance any consumer has to travel.
While the original model focused on physical location, the principles of Hotelling’s Law can be extended to other dimensions of product differentiation, such as pricing, advertising, or features. The law highlights a fundamental tension between competition and differentiation, illustrating how market forces can lead to both increased competition and, paradoxically, reduced product variety.
Hotelling’s Law is an economic theory proposing that competing firms selling identical products will strategically locate themselves at the same point in a market to capture the largest share of customers, assuming consumers choose the closest seller and firms compete on location rather than price.
Key Takeaways
- Hotelling’s Law models spatial competition where firms choose locations to attract consumers.
- Under its assumptions, competing firms selling identical products tend to converge to the same location.
- The law highlights the trade-off between competition and product differentiation.
- It suggests that maximizing market share can lead to reduced variety for consumers.
Understanding Hotelling Law
The foundational scenario of Hotelling’s Law involves consumers uniformly distributed along a linear market, say a street of a certain length. Each consumer has a preference for the seller that is closest to them, incurring a transportation cost proportional to the distance. Two firms, Firm A and Firm B, sell an identical product at the same price. The only decision variable is their location along this line.
If Firm A locates at one end and Firm B at the other, each captures half the market. However, if Firm A moves slightly towards the center, it can attract some of Firm B’s customers from the middle. Firm B has a strong incentive to counter this by also moving closer to the center, potentially even to the same spot as Firm A. This tendency to converge to the center is the law’s primary prediction.
The convergence occurs because any deviation from the center leaves a firm vulnerable to its competitor capturing the central market segment. The

