The diversification effects of a firm's political connection and its performance implications

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PurposeThe purpose of this paper is to comprehensively investigate the combined influence of a firm's political connection and diversification on corporate performance, and to explore whether firm's political connection has an impact on the diversification effect, and whether this diversification effect would promote its performance significantly or not.Design/methodology/approachThe research used a regression model to explore the correlation among political connection, diversification strategy, and corporate performance. The research subjects are the private enterprises listed on Shanghai and Shenzhen Stock Exchange in China for the period 2002‐2005.FindingsThe study found that: first, for those firms without political connections, the relationship between diversification strategy and corporate performance displayed an “inverted U” curve; for firms with political connection, the relationship was a “reverse L”. Second, firms with political connections are more likely to implement a diversification strategy, especially unrelated diversification. Third, when implementing an internationalization strategy, private enterprises with political connections are more likely to expand through unrelated diversification strategy. Fourth, the diversification of the enterprises with political connection are more likely to promote the short‐term accounting performance than those without political connection, but the unrelated diversification of politically connected enterprises would have a negative impact upon its future performance, that is to damage the company's market value.Originality/valueThe paper expands the literature on the relationship between diversification and firm performance. It contributes to the research about the influence of political connection upon corporate performance.