摘要：优化营商环境既是激发市场主体活力，提升经济发展质量的关键抓手，也是赋能企业创新，增强国家核心竞争力的重要支撑。本文基于2020年两万余家中国私营企业的调查数据，在厘清民营企业营商环境发展现状与典型特征的基础上，实证探究了多元营商环境优化对企业创新意愿的影响效应及其内在机制。研究发现，整体营商环境的改善对企业创新意愿有着显著的促进作用，但不同维度营商环境的影响效应存在较大差异。具体而言，政务服务评价中“政府官员勤政、积极服务企业”、监管执法评价以及市场环境评价中“企业从国有银行贷款的难易程度”的改善对企业创新意愿具有显著的正向影响，而政务服务评价中“行政审批手续更加方便、便捷”、法治保障评价以及市场环境评价中“企业从民间渠道筹资的难易程度”的改善尚未呈现明显的创新效果。异质性分析发现，营商环境的创新效应在数字化转型程度较高、生产率水平较高、获得政府补贴以及规模较大的企业中表现更为突出。机制检验表明，营商环境优化主要通过制度性交易、物流、要素、税费和融资五大成本的减负效应，有效提升了企业创新意愿。为充分释放营商环境对企业创新的驱动效能，更好推动有为政府与有效市场协同发力，本文提出以下政策建议:从政府治理层面来看，应打造高效便捷的政务服务环境，营造透明公正的法治保障环境，构建规范包容的监管执法环境，培育公平竞争的市场环境。从企业发展层面来看，应精准对接财税支持政策，推动降本与创新双轮驱动，融入中小企业专属扶持体系，破解关键发展瓶颈，实施人力资本与数字化协同升级战略，激发内生发展动力。

Abstract: Optimizing the business environment is not only a key approach to stimulating corporate innovation vitality and enhancing high-quality economic development,but also an important support for empowering corporate innovation and strengthening national core competitiveness. Based on survey data from over 20,000 private firms in China in 2020,this study delineates the current state and distinctive features of the business environment for private enterprises and empirically investigates the impact and underlying mechanisms of diverse business environment optimizations on corporate innovation willingness. The findings reveal that overall improvements in the business environment significantly enhance corporate innovation willingness,although the effects vary considerably across different dimensions. Specifically,the improvement of “government officials' diligence and active service to enterprises ” in the evaluation of administrative services,the evaluation of regulatory enforcement,and the evaluation of “the ease of obtaining loans from state-owned banks” in the market environment have a significant positive impact on the innovation willingness of enterprises, whereas the improvement of “more convenient and efficient administrative approval procedures” in the evaluation of administrative services,the evaluation of legal environment, and the evaluation of “the ease of raising funds from private channels” in the market environment do not exhibit notable innovation incentives. Heterogeneity analysis indicates that the innovation effects of the business environment are more pronounced in enterprises with higher levels of digital transformation, greater productivity,those receiving government subsidies,and larger-scale firms. Mechanism tests suggest that business environment optimizations primarily boost innovation willingness by alleviating costs across multiple dimensions,including institutional transaction,logistics,factors,tax,and financing expenses. To fully unleash the driving effect of the business environment on corporate innovation and better promote the collaborative efforts of proactive government and effective market,this paper proposes the following policy suggestions. From the government's perspective, governments shall develop streamlined administrative services,build a transparent and impartial law-based business ecosystem,form standardized and inclusive regulatory regimes, and foster a marketplace with fair competition. From the enterprise's perspective,enterprises should fully tap into targeted fiscal and tax support policies,take cost reduction and innovation as dual engines of growth,access special support schemes for small and medium-sized enterprises to resolve major development bottlenecks,and implement a coordinated upgrading strategy covering human capital and digital advancement to boost endogenous development momentum.