【摘要】 数字化时代，数字技术对于企业发展至关重要。将2015年视为数字化转型政策效应的分界点，以2010—2021年我国105家A股建筑业上市公司数据为样本，运用双重差分模型进行实证分析，结果发现：企业数字化转型能够提高创新效率；企业数字化转型能够通过缓解企业融资约束提高创新效率，即融资约束在数字化转型与创新效率之间存在中介效应。回归分析的结果能够丰富建筑业数字化转型与创新之间关系的研究，为提高建筑业上市公司创新效率提供理论参考。更多还原

【Abstract】 In the digital era,digital technology is of great significance to enterprises’ development. With the year 2015 regarded as the cut-off point when the digital transformation policies started to take effect,an empirical study was conducted on the differences-in-differences model to analyze the sample data of105 A-share listed construction companies in China from 2010 to 2021. The results show that digital transformation can improve enterprises’ innovation efficiency by alleviating their financing constraints,indicating that financing constraints have a mediating effect. This regression analysis not only brings new ideas to the research on the relationship between digital transformation and innovation but also provides theoretical suggestions to listed construction companies on how to improve innovation efficiency.更多还原