Who Lives Near Coke Plants and Oil Refineries? An Exploration of the Environmental Inequity Hypothesis

Facility-specific information on pollution was obtained for 36 coke plants and 46 oil refineries in the United States and matched with information on populations surrounding these 82 facilities. These data were analyzed to determine whether environmental inequities were present, whether they were more economic or racial in nature, and whether the racial composition of nearby communities has changed significantly since plants began operations.The Census tracts near coke plants have a disproportionate share of poor and nonwhite residents. Multivariate analyses suggest that existing inequities are primarily economic in nature. The findings for oil refineries are not strongly supportive of the environmental inequity hypothesis. Rank ordering of facilities by race, poverty, and pollution produces limited (although not consistent) evidence that the more risky facilities tend to be operating in communities with above-median proportions of nonwhite residents (near coke plants) and Hispanic residents (near oil refineries). Over time, the racial makeup of many communities near facilities has changed significantly, particularly in the case of coke plants sited in the early 1900s. Further risk-oriented studies of multiple manufacturing facilities in various industrial sectors of the economy are recommended.The authors are all affiliated with the Harvard Center for Risk Analysis     

实行会计委派制的重要性

实行会计委派制是会计管理体制的重大改革，是加强会计工作的重大举措，它可以解决会计信息失真这个长期没有解决的根本问题，可以促使企业加强内部管理，规范企业自身的经济行为，实行会计委派制，涉及面广，政治性强，不可急于全面铺开，应根据各单位的具体情况选择适当的模式。     

Internationalization and Indigenous Technological Efforts of Emerging Economy Firms: The Effect of Multiple Knowledge Sources

Getting engaged in competitive international markets motivates exporting firms to enhance their technological competitiveness and invest in research and development (R&D). While in-house R&D investment is important for getting advanced technologies, the technologies needed by exporters located in emerging economies (EEs) typically readily exist overseas. Drawing on organizational learning literature, we argue that the R&D intensity stimulated by exporting may be reduced when 1) EE exporters are better prepared and motivated to absorb foreign knowledge, 2) foreign sources of knowledge are more available, and/or 3) local technology supply is poor. An analysis on 5592 automobile parts and component manufacturers in China during 2005–2007 supports these arguments. To compete in markets abroad, Chinese firms' R&D intensity increases with export intensity when their export intensity is low. As the export intensity exceeds a certain threshold, their R&D intensity starts to decrease as intensive exporters are better prepared and motivated to acquire knowledge from foreign sources. When substitutive foreign knowledge sources such as foreign parents and FDI spillovers in the local industry is available, firms' R&D intensity stimulated by exporting can be further reduced. Better local technology supply can increase the R&D intensity stimulated by exporting.     

中国沪深股市的开盘效应与收盘效应

股票市场的日历效应历来受到学者和投资者的广泛关注,研究发现股市存在节日效应、月份效应与周内效应,但是针对日内效应的研究不多见.利用沪深股指2004年~2016年的高频数据,实证检验中国沪深股市是否存在日内效应,结果表明:中国沪深股市整体上存在开盘效应与收盘效应,但在牛市、熊市期间的表现形式存在差异,股指收益在牛市期间表现出正向开盘效应,在熊市期间表现出负向开盘效应,股指波动在熊市期间的开盘效应更为明显.基于滚动窗口法的进一步研究发现:股指收益开盘效应和收盘效应的变化领先于股指走势的变化,股指收益和波动的开盘效应或收盘效应存在一定程度的替代现象.研究有助于投资者合理地制定投资策略,对监管部门维护市场秩序具有一定的参考价值.     

孵化互动、专用性人力资本和在孵企业成功毕业

基于合作生产理论,本文以307个新创在孵企业为样本,构建生存模型研究孵化互动介入模式和创业专用性人力资本对在孵企业成功毕业的影响。研究发现,行业专用性人力资本、创业家庭背景促成了创业成功,而创业经历对创业成功没有显著影响。同时,孵化互动在促成在孵企业成功毕业方面的调节作用则表现出很大的异质性:孵化互动模式Ⅳ和Ⅴ对行业专用性人力资本有促进性调节作用,而所有孵化互动模式对家庭背景的存在都有抑制性调节作用,但是孵化互动模式对创业经历没有显著的影响。这说明,对于包含诸多隐性成分的行业专用性知识,孵化器经理的参与意愿和介入频率是影响孵化效果的关键因素;同时,孵化互动部分替代了家庭支持的作用,降低了创业者对家庭的依赖。     

Do leadership role occupancy and transformational leadership share the same genetic and environmental influences?

Using data collected from 107 pairs of identical and 89 pairs of fraternal female twins, this study examined the genetic and environmental associations between transformational leadership and leadership role occupancy. Results show that 78% of the covariance between the two leadership variables was attributable to overlapping genetic factors, while 22% of the covariance to overlapping environmental factors. In particular, 13% (2%) of the variance in leadership role occupancy was accounted for by the same genetic (environmental) factors related to transformational leadership. Unique sets of genetic and environmental variables, which are not associated with transformational leadership, explained 16% and 69% of the variance in leadership role occupancy, respectively. The results suggest that multiple manifestations of leadership (i.e., transformational leadership and leadership role occupancy) are differentially heritable. Although the association between these two variables is largely due to overlapping genetic rather than environmental factors, unique (i.e., non-overlapping) genetic and environmental influences still play an important role in impacting these leadership variables.     

公司治理、投资者异质信念与股票投资风险——基于中国上市公司的实证研究

基于中国资本市场中股票投资存在巨大风险和投资者缺乏可靠投资决策依据的现状,本文通过分析公司治理、投资者异质信念和股票投资风险三者之间的关系,从微观层面揭示了公司治理对股票投资风险的影响机制,并利用中国A股上市公司样本验证了这一机制的存在。结果表明:公司治理水平的提高有利于降低投资者信念的异质程度和股票的投资风险;投资者信念异质程度的降低有利于减小股票的投资风险;投资者异质信念是公司治理影响股票投资风险的完全中介变量。本文结论可为研究公司治理对资本市场的影响及其在资本市场中的应用提供一些可借鉴的思路和经验证据。     

Clarifying the Effect of Intellectual Capital on Performance: The Mediating Role of Dynamic Capability

Recent studies suggest a potential relationship between intellectual capital and dynamic capability in achieving performance. This is unsettling for managers because these studies contain little effort to develop a framework for understanding the relationship. To examine this unnerving potential, we develop and test a theoretical model that explains how dynamic capability mediates the impact of intellectual capital on performance. In this study, the scope of intellectual capital includes human capital, relational capital and structural capital. This study examines the pooled data of 242 high‐technology firms from 2001 to 2008. Results from Bayesian regression analysis suggest that the effect of structural capital on performance is completely mediated by dynamic capability. Furthermore, the findings show that dynamic capability does not completely mediate the respective effects of human capital and relational capital on performance, but does so only partially. These results provide convincing support for the importance of dynamic capability through accumulating R&D and marketing capability over time, thereby enhancing firm performance. The empirical findings and the ensuing discussion will be of interest to managers and practitioners.     

高管团队薪酬差异与企业绩效关系研究:行业特征的跨层调节作用

高管团队薪酬差异与企业绩效关系是公司治理和人力资源管理领域的热点议题之一,但已有的研究结论并不一致.本研究基于锦标赛理论和社会比较理论,以992家上市公司为样本,运用阶层线性模型研究二者之间的关系及行业特征的调节作用.结果发现:(1)高管团队垂直薪酬差异与企业绩效呈正相关关系;(2)高管团队垂直薪酬差异与水平薪酬差异对企业绩效具有交互作用;(3)行业内高管薪酬差异程度对高管团队垂直薪酬差异与企业绩效关系存在跨层负向调节作用,同时对水平薪酬差异与企业绩效关系存在跨层正向调节作用;(4)行业内技术密集性对高管团队水平薪酬差异与企业绩效关系存在跨层正向调节作用.本研究为不同行业特征下的企业进行合理的高管团队薪酬结构设计提供了借鉴与参考.     

盈余重述归因分析——资产负债表膨胀的角度

针对国内外学者对财务重述原因的争议,在借鉴已有研究成果的基础上,本文从资产负债表膨胀的角度对盈余重述进行了归因分析。以高报盈余的重述公司为对象,利用多元回归分析等方法实证后发现,与非重述公司相比,高报盈余的重述公司在财务报告发生错误的年度资产负债表膨胀水平较高,说明公司被重述期正向调整了盈余,重述归因于公司之前年度有意的盈余管理;违规公司被重述期期初的资产负债表膨胀度显著高于非违规公司,证明公司违规主要是由于会计准则弹性范围内调整盈余的机会受限。