Long‐term economic consequences of corporate environmental responsibility: Evidence from heavily polluting listed companies in China

In this study, we aim to investigate the long‐term economic consequences of corporate environmental responsibility (CER) by companies from the perspective of earnings persistence and investors' response. Based on firm‐level data of 1,010 heavily polluting listed companies in China, the empirical results are as follows. First, the CER of China's heavily polluting listed companies has significantly improved their earnings persistence, that is, earnings quality. Second, the positive long‐term economic effect of CER has been achieved through two paths: improving companies' operational efficiency and reducing their credit costs. Third, CER increases investors' response to heavily polluting companies' accounting earnings. Moreover, state‐owned listed companies achieve more significant positive long‐term economic effects from CER than others. The results suggest that heavily polluting companies should correctly identify the long‐term value of CER rather than pay excessive attention to the impact of CER on their current costs and benefits.     

零工经济时代数字平台控制劳动力的供给行为

本文首先基于委托-代理模型构建了一个数字平台控制劳动力供给的行为经济学模型,从理论上分析了数字平台控制劳动的方式和心理机制;然后建立了一个赫克曼(Heckman)选择模型,利用Uber的大数据实证分析了网约车司机的劳动决策.研究结果表明:(1)在零工具有参考点偏好的前提下,数字平台通过高货币激励或高目标奖励使零工劳动者的参考点具有适应性,进而避免其过早地陷入“收入目标”行为;(2)数字平台利用零工劳动者的厌恶损失偏好,对其实施控制以延长工作时间;(3)网约车司机存在“收入目标”行为,且该行为呈现出动态性的特点;(4)收入激励和“峰时”溢价对网约车司机的工作概率和工作时间具有显著的正影响,且在一天的某个时间段内能够抑制网约车司机的“收入目标”行为.可见,零工经济时代到来,一方面提高了劳动力资源配置效率;另一方面,数字平台通过劳动控制变相延长了零工的劳动时间,加剧了剥削.     

人工合成色素与肉制品

在肉制品中,人工合成色素超标、超范围以及违法使用是近年来引发食品安全事件的热点之一,本文从危害、检测标准、监管与消费者教育等方面分析肉制品中的人工色素,以提高人民的健康意识和健康水平。     

保税港区内仓储物流业务的法律特征分析

在分析保税港区法律研究的必要性和紧迫性的基础上,从保税港区内仓储物流业务的基本法律特征入手,分析了仓储物流业务的主体、对象及合同特征,然后进一步考察保税港区这一特殊区域的仓储物流业务不同于一般仓储物流业务的附加法律特征,从而揭示保税港区内仓储物流业务的总体法律特征。     

Integration and autonomy in Chinese technology-sourcing cross-border M&As: from the perspective of resource similarity and resource complementarity

In this paper, we examine the match between resource relatedness and post-merger integration on technology innovation of acquiring firms to find the rationale behind technology-sourcing cross-border mergers and acquisitions (M&As) of Chinese multinational enterprises. Using a sample of 88 Chinese technology-sourcing cross-border M&As, we find that the acquirer will improve technology innovation when greater resource similarity between the acquirer and target firms is matched with a high integration degree and a low target autonomy level. Meanwhile, the acquirer can improve technology innovation when greater resource complementarity is matched with a low level of integration degree in technology-sourcing cross-border M&As. This paper provides the acquiring firms with fresh ideas of how to make the integration decisions of technology-sourcing overseas M&As. We hope to help multinational enterprises to achieve more outstanding technology innovation performance through technology-sourcing overseas M&As in an intense global competitive environment.     

论塑料排水管的特点及其在市政工程中的应用

随着我国城市化进程的加快,面对人口资源和环境的压力,为确保国民经济的可持续发展,我国政府在逐年加大对城市基础设施的投入。市政工程管网建设不断加快,各种排水管道的品种规格在不断的增加。塑料材料作为一种新型的化学建材得到了迅速发展,尤其是小口径结构壁管发展更快。排水管道是市政工程建设中一项重要的基础设施。在分析市政排水管道应用现状的基础上,文章探讨了市政工程中常用的塑料排水管道的类型及其优点,展望市政排水管道应用未来发展趋势。     

消费者在线评论可信度的影响因素研究

将传播学领域考察媒体可信度的霍夫兰德传播说服模型引入在线评论可信度研究,从信源、信息内容、接收者三个角度,在对现有研究梳理和总结的基础上,结合消费者在线评论的特点加入社会影响因素,提出了在线评论可信度影响因素模型,并以第三方评论网站为例,通过实证研究的方式,系统考察了消费者在线评论的可信度影响因素.同时讨论了该研究的局限性、对于管理实践的启示及未来研究方向.     

基于软土地层混凝土灌注桩施工的研究与设计

文章结合混凝土灌注桩的相关理论,介绍了混凝土灌注桩的种类和施工方法,并对软土地层桩基进行了设计,合理计算出单桩静载力和桩基强度,并对桩基强度进行复核,按其构造进行配筋,最后,总结性地提出了本灌注桩相关的结论和建议。     

中国金融发展对经济增长内在传导渠道研究——基于内生增长理论的实证比较

文章基于内生增长理论,结合中国经济增长的典型事例,确定了经济增长的影响因子,并将其与金融发展的指标变量建立回归模型组,探讨了金融发展对经济增长的内在传导机制。研究结果表明,资本存量、人力资本以及制度因素是中国金融发展与经济增长之间三条显著的传导渠道,资本积累是金融发展对中国经济增长最主要的传导渠道;技术进步并不是显著的传导渠道;同为金融发展作用于经济增长的传导主体,金融中介的作用明显要大于金融市场。