We aim to explore the prerequisites for corporate sustainability from the perspective of non-formal institutions such as culture. Specifically, we seek to investigate whether and how Chinese tea culture influences corporate social responsibility (CSR). We have developed an OLS regression model to examine the relationship between tea culture and CSR, and our findings indicate that local tea culture yields positive effects. To address endogeneity concerns related to this correlation, we employed the local geographic slope as an instrumental variable for tea culture. Subsequent research highlights that the female executive, serving as a mediator variable, represents the primary mechanism influenced by tea culture. Furthermore, our study demonstrates that tea culture exerts a more significant impact on small and medium-sized enterprises as well as state-owned enterprises. Overall, this research contributes to the literature on the determinants of CSR from the vantage point of informal institutions, offering a fresh perspective for exploring the economic ramifications of tea culture for both academia and practitioners. Moreover, it furnishes valuable insights for advancing the sustainable development of enterprises.

As society continues to develop, a growing body of research is focusing on how informal institutions, such as culture, influence corporate behavior and economic outcomes. The aim of this study is to explore the impact of cultural inclusiveness, as a non-formal institution, on firm performance. Using Chinese A-share listed firms as our sample, we employ econometric methods to analyze the relationship between cultural inclusiveness and firm performance. Our findings reveal that cultural inclusiveness enhances firm performance, particularly evident in regions with higher levels of cultural inclusiveness, where firms tend to exhibit higher return on equity. To address concerns of endogeneity, instrumental variable regression using regional topographical changes is employed. Mechanism testing indicates that cultural inclusiveness primarily improves firm performance by reducing financial constraints and optimizing employee structure. Additionally, the study finds that cultural inclusiveness has a more pronounced impact on firms with higher corporate social responsibility (CSR) performance as well as those with greater investment in research and development (R&D). This study provides a comprehensive empirical explanation of how cultural inclusiveness influences the sustainable operation of businesses.