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불공정 하도급행위 방지를 위한 정책과제(Preventing unfair subcontracting behaviours)

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Title 불공정 하도급행위 방지를 위한 정책과제(Preventing unfair subcontracting behaviours)
Publisher 세종 : 한국개발연구원
Publication Date 2017 - 12
Material Type Report
Country South Korea Holding 한국개발연구원; KDI국제정책대학원
Language Korean License
Series Title 정책연구시리즈


The disparity in bargaining power between contracting parties can engender unfair subcontracting behaviours. This calls for policy measures to resolve such issues within subcontracting practices, especially in setting subcontract prices for which fairness is difficult to determine. At the same time, the government should consider the negative effects of the policies on social welfare as an increase in subcontract prices may raise the price of final goods. Accordingly, this study examines policy measures that reduce the bargaining power gap without diminishing welfare. Since exclusive contracts are impeded by hold-up possibilities, it is reasonable to suppress the bargaining power of purchasers engaging in exclusive contracts. Suppliers will then find it profitable to switch to exclusive contracts. The more contracts become exclusive, the less costs are incurred by the contracting parties in production and transaction, which enhances efficiency. One way to curb the widening of the bargaining power gap under exclusive contracts is forcing purchasers to prove why a price cut is necessary. Stronger penalties may also be effective. But, before measures can be implemented, a clear definition of “exclusive contract” is required. A useful criterion would be whether a purchaser is in the dominant position in terms of supply-side substitutability. The bargaining power gap would shrink if suppliers formed coalitions; the coalitions could become lawful under the Monopoly Regulation and Fair Trade Act if certain conditions are met. The key criterion is whether there are any harmful repercussions to social welfare. The double marginalization theory implies that group-bargaining reduces social surplus, but this study shows that social surplus may not decrease as much as expected, especially when the final good market is competitive. Moreover, there is no welfare loss if suppliers’ coalitions are paid a share of the margin in addition to their marginal costs. Therefore, as a precondition to legitimize the coalitions, the government must force the contracting parties to divide the margin and to make their own cost structures transparent to the other parties for verification of the exact margin.

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