Influence Of Supply Chain Concentration On Overseas Performance Of

Under the background of economic globalization and complicated international trade situation,the position of supply chain in enterprise competition is becoming more and more important.The traditional way of competition among enterprises has gradually turned to competition among supply chains.The impact of COVID-19 on international trade has highlighted the importance of enterprise supply chain management,then optimizing and improving supply chain management has become the only way for enterprises to improve their competitiveness.From the perspective of supply chain transaction cost theory and resource-based theory,high supply chain concentration makes the relationship between enterprises and suppliers or customers intimate.Such long-term cooperative relationship can enhance the willingness to share resources such as information and knowledge,and promote the transfer of knowledge or more reciprocal services.However,from the perspective of bargaining power and capital turnover,excessive supply chain concentration will also make enterprises more dependent on suppliers or customers and thus fall into a passive situation.Then customers and suppliers will obtain higher relative bargaining power for enterprises and to carve up more supply chain profits,which will then affect the operating costs and capital turnover of enterprises,and finally causing the reduce of the profitability of enterprises.This paper selects the relevant data of Chinese listed companies to test the influence mechanism of supply chain concentration on the overseas performance of enterprises.The research points out that,the enterprise’s overseas performance will be significantly inhibited by both supplier concentration and customer concentration.Supplier stability will inhibit corporate overseas performance,but customer stability did not show significant inhibition.At the same time,the relative bargaining power of suppliers and the overseas performance of enterprises have a positive "U"-shaped relationship,which is low on the left and high on the right;while the relative bargaining power of customers has an inverted "U"-shaped relationship of the overall decline with the overseas performance of enterprises.The inhibitory effect of customer concentration and supplier concentration will be transmitted through bargaining power,That is,the higher the bargaining power of the customer to the enterprise,the higher the bargaining power of the supplier to the enterprise will be,which will resulting in a vicious circle of reducing the overseas performance of the enterprise.In addition,The inhibitory effect of customer concentration and supplier concentration does not change significantly with the change of enterprise size or ownership concentration.Supplier concentration inhibition effect in state-owned enterprises is slightly weaker than that in non-state-owned enterprises,while the customer concentration inhibition effect of state-owned enterprises is slightly stronger than that of non-state-owned enterprises.It can be seen that the excessive concentration and stability of the supply chain for companies is not beneficial to their operations in overseas markets,which means that the supply chain should be reasonably dispersed to improve supply chain heterogeneity,and to make sure that the concentration degree and relative bargaining power of suppliers and customers are controlled to a certain extent which will be more conducive to enterprises in the improvement of the overseas market layout and performance.This paper provides a theoretical basis for understanding the influencing machine of supply chain concentration on ’overseas performance of companies,and provides a decision-making reference for companies to rationally optimize and improve supply chain management,and adjust the strategic layout of overseas markets to improve their overseas performance and competitiveness.