Portfolio underdiversification is one of the most costly losses accumulated over a household’s life cycle. We provide new evidence on the impact of financial inclusion services on households’ portfolio choice and investment efficiency using 2015, 2017, and 2019 survey data for Chinese households. We hypothesize that higher financial inclusion penetration encourages households to participate in the financial market, leading to better portfolio diversification and investment efficiency. The results of the baseline model are consistent with our proposed hypothesis that higher accessibility to financial inclusion encourages households to invest in risky assets and increases investment efficiency. We further estimate a dynamic double machine learning model to quantitatively investigate the non-linear causal effects and track the dynamic change of those effects over time. We observe that the marginal effect increases over time, and those effects are more pronounced among low-asset, less-educated households and those located in non-rural areas, except for investment efficiency for high-asset households.

We examine the effect of minority shareholder voting rights on labor investment efficiency using a sample of Chinese firms. Taking advantage of the difference-in-difference setting, our study reveals that the expansion of minority shareholder voting rights has a detrimental effect on labor investment efficiency. Through analysis of holding period and a managerial shortsightedness index based on textual analysis, we find that this outcome can be attributed to the fact that minority shareholders typically prioritize short-term gains over long-term corporate growth. Moreover, the impact of voting power is more pronounced in determining the investment efficiency of rank-andfileemployees. Our results are more significant for firms that face severe financial constraints, are non-state-owned enterprises, exhibit lower levels of internal control, possess fewer female managers, demonstrate lower human capital quality and higher labor intensity. Taken together, our paper suggests that minority shareholders could be myopia in making labor decisions.

Site visits allow visitors to physically inspect productive resources and interact with onsite employees and executives face-to-face. We posit that, by allowing visitors to acquire investmentrelated information and monitor the management team, site visits offer disciplinary benefits for corporate investments. Using mandatory disclosures of site visits in China, we find that corporate investments become more responsive to growth opportunities as the intensity of site visits increases, consistent with the notion that site visits yield disciplinary benefits. We also find that the positive association between site visits and investment efficiency is more pronounced when visitors can glean more investment-related information and when they have stronger incentives and greater power to monitor managers. This positive association is also stronger among firms with more severe agency problems and higher asset tangibility. The overall evidence supports the notion that site visits serve as a unique venue for institutional investors and financial analysts to acquire valuable information and serve a monitoring function, which generates disciplinary benefits for corporate investments.

This paper, based on data from Chinese A-share listed companies between 2009 and 2019, employs the implementation of the "Shanghai-Hong Kong Stock Connect" as a landmark event of capital market liberalization, utilizing a difference-in-differences model to empirically examine the impact of market openness on firms' cross-region investment behavior and its underlying mechanisms. The findings indicate that: (1) the launch of the "Shanghai-Hong Kong Stock Connect" has significantly promoted the establishment of cross-provincial and cross-border subsidiaries by the companies involved; (2) capital market liberalization influences firms' cross-region investment through three dimensions: finance, governance, and stakeholders. In terms of finance, the openness alleviated financing constraints and improved stock liquidity; in governance, it pressured companies to adopt more digitalized and transparent governance structures to accommodate cross-regional expansion; in the stakeholder dimension, it attracted the attention of external investors, accelerating their understanding of firms and alleviating the trust issues associated with cross-region expansion. (3) The effect of capital market liberalization on promoting cross-border investments by private enterprises is particularly pronounced, and this effect is further strengthened as the quality of corporate information disclosure improves. Firms with higher levels of product diversification benefit more from market liberalization, accelerating their overseas expansion. (4) Capital market liberalization has elevated the level of cross-region investment, thereby significantly fostering innovation and improving investment efficiency. The conclusions of this study provide fresh empirical evidence for understanding the microeconomic effects of China's capital market liberalization, the intrinsic mechanisms of corporate cross-region investments, and their economic consequences.

This study empirically investigates the impact of dialect diversity on corporate investment efficiency under different levels of economic policy uncertainty. Our findings reveal that local dialect diversity enhances investment efficiency during stable periods, but this advantage significantly diminishes under high economic policy uncertainty. This reduction primarily arises from underinvestment and overly cautious decision-making by fragmented management during periods of turmoil. Further analysis reveals that this reduction is exacerbated by stronger internal governance, which emphasizes checks and balances, and mitigated by stronger external governance, which focuses on supervisory power. Our results remain robust when using alternative measures of main variables and employing topography as an instrumental variable.

The opening of high-speed rail (HSR) has significantly boosted business development in China. This study constructs a credit rationing model based on the theory of information asymmetry, and takes the opening of HSR as a quasi-natural experiment to empirically examine its impact on the investment and financing decisions among firms with different risk profiles using data from A-share listed companies from 2005 to 2019. The findings reveal that HSR opening significantly reduces corporate short-term loans while increasing long-term loans, without affecting loan costs. Lowriskfirms, as opposed to high-risk ones, experience notable reductions in short-term loan amounts and extended loan terms post-HSR opening. This is attributed to HSR mitigating information asymmetry between banks and firms. Additionally, HSR opening suppresses "short-term debt for long-term use" behaviors, thereby enhancing investment efficiency and quality. The study empirically supports the idea of leveraging HSR's economic stimulus in terms of firm investment and financing.

This paper investigates the varying impact of government subsidies on corporate investment efficiency using micro-level data from Chinese listed firms. Through meticulous compilation of information on government subsidies revealed in financial statements, and the implementation of an innovative categorization methodology based on the nature and timing of funds (ex-ante versus ex-post), we shed light on the divergent effects of these subsidies. Our findings are as follows: (1) Government subsidies enhance corporate investment efficiency, yet their effects exhibit asymmetry by alleviating underinvestment while exacerbating overinvestment. (2) Functional subsidies exert a stronger influence on investment efficiency compared to selective subsidies. Specifically, functional subsidies prove more effective in addressing underinvestment, but also possess a higher likelihood of exacerbating overinvestment. (3) State ownership, firm size and dividend payments lead to heterogeneity in the effects of subsidies. (4) Corporate financial constraints serve as one of the mechanisms through which subsidies affect investment efficiency. This suggests that firms with easier access to financing may not effectively utilize subsidies, while those facing severe financial constraints are less prone to misusing them.

This paper studies the impact of political dynamics on corporate environmental investments. Employing data collected manually on the turnover of municipal government officials in China as a proxy for political dynamics from 2007 to 2020, we find that these dynamics drive an uptick in corporate green investments, aligning with the principles of resource dependency theory. The influence of political dynamics on green investments becomes more pronounced when companies grapple with external economic and political uncertainties. Additionally, this effect is most pronounced among energy sector companies and non-state-owned enterprises (SOEs). Despite the observed surge in green investment activity due to political dynamics, we reveal a tendency towards over-investment in green initiatives, subsequently diminishing overall firm investment efficiency under current political conditions. This study advances knowledge regarding how political dynamics influence enterprises' sustainability practices and provides valuable insights for businesses navigating the implications of their pursuit of environmentally responsible development.

This paper studies the impact of political dynamics on corporate environmental investments. Employing data collected manually on the turnover of municipal government officials in China as a proxy for political dynamics from 2007 to 2020, we find that these dynamics drive an uptick in corporate green investments, aligning with the principles of resource dependency theory. The influence of political dynamics on green investments becomes more pronounced when companies grapple with external economic and political uncertainties. Additionally, this effect is most pronounced among energy sector companies and non-state-owned enterprises (SOEs). Despite the observed surge in green investment activity due to political dynamics, we reveal a tendency towards over-investment in green initiatives, subsequently diminishing overall firm investment efficiency under current political conditions. This study advances knowledge regarding how political dynamics influence enterprises' sustainability practices and provides valuable insights for businesses navigating the implications of their pursuit of environmentally responsible development.

This study examines the impact of Shenzhen Stock Exchange’s (SZSE) information disclosure ratings on investment efficiency in China. Based on a sample of Chinese A-share listed companies on the SZSE from 2001 to 2018, we discover that superior information disclosure ratings improve investment efficiency after controlling for various firm- and industry-level variables. Our findings remain valid after various robustness tests and using instrumental variables to address the endogeneity problem. Specifically, we find that improving information disclosure ratings help firms attract more investor attention, which leads to higher investment efficiency. In addition, this information disclosure effect is more pronounced for underinvestment firms and firms on the main board than for smaller firms on SEM (small- and medium-sized enterprise) and GEM (growth enterprise market) boards. Our evidence supports the idea that regulatory activities for information disclosure ratings of companies listed on China’s stock exchanges improve investment efficiency.