Using demographic identification to estimate the effects of board size on corporate performance

Motivated by agency theory, we investigate the effect of board size on corporate outcomes. To address endogeneity, we exploit the variations in the director-age populations across the states in the US. We argue that firms with access to a larger pool of potential directors tend to have larger boards. Consistent with this notion, our empirical results show that firms located where the size of the director-age population is larger have significantly larger board size. Because the director-age population represents broad demographic trends outside of any firm’s control, it is unlikely related to firm outcomes or policies and should be exogenous. Using the director-age population as our instrument, we estimate the effects of board size on firm value and profitability. Our approach is less vulnerable to endogeneity and is more likely to show a causal effect.     

Do immigrants affect the profile of U.S. exporters?

We highlight that an increase in the stock of immigrants corresponds with greater numbers of U.S. firms that engage in exporting to foreign markets. Our results are obtained from the estimation of a multi-level mixed effects model. Overall, the effect of immigrants is relatively larger among small- and medium-sized enterprises and is smaller among large-sized enterprises. There are, however, considerable differences, both in the magnitude and in nature of the observed effects of immigrants on manufactured and non-manufactured goods exporters of comparable size categories. Similarly, heterogeneity is found in the effects of immigrants on the numbers of small-, medium-, and large-sized exporters across home country cohorts that are grouped by World Bank income classifications and by broad regional classifications of destination markets. These findings imply that immigration has the potential to alter the profile of domestic firms involved in exporting.     

企业生产率、国外市场知识与企业出口额

本文运用企业异质性贸易理论,利用分行业上市企业的面板数据,将企业规模作为控制变量,研究了企业生产率、国外市场知识与中国企业出口额的关系。结果显示:企业生产率和国外市场知识对企业出口额的影响显著为正,影响效果存在行业差异;作为控制变量的企业规模,对企业出口额的影响存在不确定性,或正向相关或负向相关或呈U形关系。     

企业出口与生产率的关系——基于中国工业企业数据的实证研究

采用1998—2007年中国工业企业数据,对出口与生产率的关系进行了再探讨,具体研究了出口企业是否具有更高的生产率、企业在做出口决策的过程中是否存在自我选择机制以及出口行为本身是否能促进企业生产率的增长。研究结果显示:当用TFP衡量生产率时,企业出口决策中存在自我选择机制,因此出口企业的生产率相对较高——这与异质企业贸易模型的预期结果一致;当用劳动生产率(人均附加值)衡量企业生产率时,则"生产率悖论"存在,即出口者的生产率反而较低;当企业刚进入出口市场时,其生产率会经历短期的快速增长,但从长期来看,出口对企业生产率增长的作用在整体上是负向的。     

The true effect of students’ employment on the duration of studies

We examine the effect of the first-degree students’ employment on the prolongation of their studies. When employing a popular instrumental variable, the regional unemployment rate, we find a negative impact of students’ employment on duration of studies. Then, adding a predetermined IV – the individual’s employment prior to the beginning of academic studies – turns the estimate positive. Furthermore, we find that the relationship between the extent of students’ employment and duration of their studies depends on their age: among the younger students (aged 22–26), the extent of employment has no effect on the duration of studies, while among the older students, the effect is positive and statistically significant.     

最低工资上调会激励企业应用信息技术吗?

加强企业信息化建设是当前推动供给侧结构性改革顺利开展的关键环节。本研究使用世界银行提供的关于中国制造业企业营商环境质量的调查数据,检验了最低工资标准对企业信息技术应用的影响及作用机制。研究结果显示:最低工资标准上调会激励企业应用信息技术。进一步,本研究还揭示了最低工资标准影响企业信息技术应用的调节机制,即劳动生产率和企业规模会负向调节最低工资标准对企业信息技术投资水平的积极影响,而企业年龄的调节效应并不显著。此外,稳健性检验结果表明,最低工资标准上调对企业信息技术应用的积极影响具有较强的稳健性。不过,最低工资标准上调对企业信息技术投入水平的积极影响会随着企业信息技术投入水平的提高而逐渐弱化。本研究丰富了有关劳动力市场管制对企业内部资源重构影响的相关文献,具有一定的理论和实践意义。     

Exports and firm survival: do trade regime and productivity matter?

This article aims to investigate the role of trade regime and productivity in the link between exporting and firm survival. We use firm-level data from China to examine whether exporters engaged in different trade regimes and with different levels of productivity react differently with regard to survival probability. We find that exporters engaged in all types of trade regimes have higher survival probabilities in comparison with nonexporters; however, the survival probability of exporters engaged in processing trade is less positively affected by productivity.     

Does sports activity improve health? Representative evidence using local density of sports facilities as an instrument

Using representative and geocoded data from the Swiss Household Panel and the Swiss Business Census, we estimate the effect of sports activity on health. OLS models show that sports activity significantly decreases overweight, sleeping problems, headaches, back problems, and perceived health impediments in everyday activities and significantly increases health satisfaction. Because sports activity is likely to be misreported and correlated with unobserved determinants of health, we use the number of sports facilities within 6 miles of the individual’s residence as an instrument for sports activity. Although the instrument is powerful in explaining sports activity, the second-stage effects on health are mostly statistically insignificant due to the high SEs of the IV estimates.     

民营制造业中的企业规模—工资效应

本文基于调查数据就民营制造业中企业规模对工人工资的影响进行了实证研究。结果显示,企业规模—工资效应在民营制造业中普遍存在,工人工资与企业规模正相关。同时发现,工人素质假说和劳动生产率假说对于该效应的成因具有较强的解释力。对传导机制的研究表明,企业规模主要通过工人素质、资本密集度、技术水平以及工会组建率等因素间接作用于工人工资。     

Do foreign institutional investors enhance firm innovation in China?

This paper investigates the impact of the Qualified Foreign Institutional Investor (QFII) scheme regulated by the Chinese government on firm innovation in China. By explicitly addressing the potential endogenous relationship between foreign institutional ownership and firm innovation, we find that foreign institutional investors enhance firm innovation in China, suggesting that the Chinese government should further relax its foreign capital investment control, for example, increase the quota of the QFII scheme.