中国经济问题 ›› 2025›› Issue (06): 130-.

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社保投入对企业投资的影响—来自中国上市公司的经验证据

  

  • 出版日期:2025-12-15 发布日期:2026-01-24

  • Online:2025-12-15 Published:2026-01-24

摘要:

延续执行减税降费既要守住民生保障底线,又要激发市场主体投资活力,寻找到两者间的平衡点是我国落实六稳六保大局、稳定宏观经济大盘的关键。本文利用2012—2020 年中国A 股上市公司数据,实证研究社保投入对企业投资的影响。研究发现,社保投入增加会在一定程度上促使企业投资增长,在经过一系列稳健性检验后依然成立。机制分析表明,社保投入主要通过人力资本结构升级与企业声誉价值提升两种渠道影响企业投资。异质性分析表明,此促进作用在国有企业,以及劳动密集度较高、市场竞争度较低、员工满意度较高的企业中更明显。门槛效应分析表明,当社保投入超过一定规模时,其对企业投资的促进作用明显降低。进一步地,社保投入增长有助于提高企业当年申请的专利数量,从而促进企业创新,但也可能导致过度投资问题,降低企业投资效率。因此,企业有必要将社保投入维持在最优区间内并加以调节,以充分发挥社保投入的积极作用。本文的研究可为企业激发创新潜能提供有益思考,也可为政府深化供给侧结构性改革提供政策启示。

关键词:

社保投入, 企业投资, 企业创新, 投资效率

Abstract:

Continuing the implementation of tax cuts and fee reductions requires not only maintaining the bottom line of ensuring people's livelihoods, but also stimulating the investment vitality of market entities. Finding a balance is the key to achieving the overall goal of ensuring stability on the six fronts and security in the six areas, as well as stabilizing the macroeconomic situation in China. This article is based on data from A–share listed companies from 2012 to 2020, and empirically studies the impact of the social security inputs on corporate investment. The results show that increasing the social security inputs have a positive promoting effect on the corporate investment to a certain extent, which remains valid after a series of robustness tests. Mechanism analysis shows that social security inputs mainly affect corporate investment by upgrading human capital structure and improving corporate reputation value. Heterogeneity analysis shows that this positive effect is more pronounced in state-owned enterprises, or in the enterprises with higher labor intensity, lower market competition and higher employee satisfaction. Threshold effect analysis shows that when the social security inputs exceed a certain scale, the promoting effect on corporate investment will significantly decrease. Furthermore, the increase in social security inputs will help increase the number of patents applied for by companies in that year, thus promoting corporate innovation, but it will also lead to the over-investment problem and reduce corporate investment efficiency. Therefore, it is imperative for enterprises to maintain social security inputs within an optimal range and adjust them accordingly to fully leverage the positive impact of social security inputs. This article can provide useful thinking for enterprises to stimulate innovation potential, and also provide policy inspiration for the government to deepen supply–side structural reform.

Key words:

social security inputs, corporate investment, corporate innovation, investment efficiency