Supply-Chain Concentration and Inefficient Investment

This paper investigates the influen7ce of supply-chain concentration on inefficient investment. We find that concentrated supply chains significantly foster inefficient investment and distort investments in an under-investing way. It suggests that a concentrated supply-chain base detriments investment efficiency. Nevertheless, the adverse impact is mitigated when switching costs are higher, information environment is more transparent, and CEO risk-taking incentives are higher. We also compare the effects in different types of firms and find that SOEs are less vulnerable to supply-chain concentration in terms of underinvestment. Overall, our study sheds light on the economic implications of supply-chain concentration in emerging markets.