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Buyer Power and the Effect of Vertical Integration on Innovation

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  • Claire Chambolle
  • Morgane Guignard

Abstract

Our article investigates the impact of vertical integration (without foreclosure) on innovation. We compare cases where either (i) two manufacturers or (ii) a manufacturer and a vertically integrated retailer invest. Then, the independent manufacturer(s) and the retailer bargain over nonlinear contracts before selling to consumers. We show that vertical integration always increases the incentives to invest in the integrated product, which stifles (resp. spurs) the investment of the independent manufacturer when spillovers are low (resp. high). In contrast, when investments are sequential, if the buyer power is high, and the independent manufacturer chooses its investment first, it invests more (resp. less) to discourage the integrated retailer's investment when spillovers are low (resp. high). Furthermore, vertical integration is always profitable even when it is not desirable for the industry and welfare. Overall, vertical integration is desirable for the industry when the buyer power is high, and may harm welfare when both the buyer power and spillovers are low.

Suggested Citation

  • Claire Chambolle & Morgane Guignard, 2026. "Buyer Power and the Effect of Vertical Integration on Innovation," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 35(2), pages 294-310, April.
    • Handle: RePEc:bla:jemstr:v:35:y:2026:i:2:p:294-310
    DOI: 10.1111/jems.70002
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