By assuring a stable trading relationship, exclusive dealing can make firms more willing to invest in assets or practices tailored to a particular partner. These investments may improve coordination or distribution, but their value can depend on continued exclusivity. The arrangement therefore affects firms’ incentives before transactions occur, not only competition and prices afterward.
Free riding occurs when one firm benefits from another firm’s investment without contributing to its cost. Exclusive dealing may reduce this problem by protecting investments in distribution or customer relationships from outside firms’ use. That justification is stronger when the investment materially supports sales or service and weaker when exclusivity mainly restricts access without creating comparable benefits.
Foreclosure becomes more plausible when exclusive contracts cover a large share of important customers or suppliers, leaving rivals too few alternatives for meaningful market access. The economic concern depends on coverage and market structure rather than on a single contract alone. High coverage can raise entry barriers, while limited coverage may have little effect on competition.
Switching costs make it more difficult or expensive for buyers or sellers to change trading partners. When contracts restrict outside transactions, these costs can reinforce the arrangement and reduce competitive pressure from alternatives. Analysts therefore examine switching costs alongside contract coverage, market shares, prices, and output to determine whether exclusivity mainly supports coordination or weakens rivalry.
Economists compare possible efficiency gains with effects that may weaken competition. They examine market shares, contract coverage, switching costs, prices, and output, then consider how those conditions affect consumer welfare. The central question is whether relationship-specific investment, reduced free riding, or better distribution outweighs reduced access for rivals and any resulting competitive harm.
Researchers examine it when contractual restrictions appear connected to changes in market access, entry conditions, or distribution. They may compare the extent of exclusivity with market shares, switching costs, prices, and output, while asking whether the practice supports investment or limits rivals. This framework helps distinguish potentially efficient arrangements from widespread practices that weaken competition.