Bargaining power and supply base diversification
AbstractIn this paper, the authors examine a supply base diversification problem faced by a buyer who periodically holds auctions to award short term supply contracts among a cohort of suppliers (i.e., the supply base). To mitigate significant cost shocks to procurement, the buyer can diversify her supply base by selecting suppliers from different regions. The authors find that the optimal degree of supply base diversification depends on the buyer’s bargaining power, i.e., the buyer’s ability to choose the auction mechanism. At one extreme, when the buyer has full bargaining power and thus can dictatorially implement the optimal mechanism, she prefers to fully diversify. At the other extreme, when the buyer uses a reverse English auction with no reserve price due to her lack of bargaining power, she may consider protecting herself against potential price escalation from cost-advantaged suppliers by using a less diversified supply base. The authors find that in general the more bargaining power the buyer has to control price escalation from cost-advantaged suppliers the more she prefers a diversified supply base. This insight is shown to be robust to correlation between regional costs, asymmetry across regions, and intermediate levels of bargaining power.
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Bibliographic InfoPaper provided by HEC Paris in its series Les Cahiers de Recherche with number 922.
Length: 40 pages
Date of creation: 01 Nov 2009
Date of revision:
supply base diversification; supplier; buyer; procurement; bargaining;
Find related papers by JEL classification:
- M11 - Business Administration and Business Economics; Marketing; Accounting - - Business Administration - - - Production Management
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