Competitive advantage is the key to a company's success, and the business strategy represents a long-term plan to achieve a competitive advantage by affecting the company's financial behavior. This research studies the interaction of business strategy, competitive advantage, and financial strategy to explore whether companies choose different financial strategies based on their business strategies as well as what role competitive advantage plays in their decision-making. By building a composite

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... index and observing maturity mismatched investment, this research quantifies the risk level of business strategies and financial strategies. Using text analysis of a company's annual report, the research builds a dummy variable to measure the competitive advantage. Based on the samples of A-shares listed on the China Shanghai and Shenzhen stock exchanges from 2007 to 2016, the research shows that the risk level of business strategy and financial strategy tends to move in opposite directions. If a company embraces an aggressive business strategy, it is more likely to choose a conservative financial approach in terms of lower overall risks, but for the company with a competitive advantage, the negative correlation between these two strategies is weakened. Further analysis found that company ownership, free cash flow, and the quality of internal control also play a significant role in the interaction between business strategy and financial strategy. Our findings not only enrich research on business strategy and financial behavior, but also deepen the understanding of competitive advantage and corporate financial strategy theoretically.