Pro-cyclical effect of sovereign rating changes on stock returns: a fact or factoid?

This article examines the effect of changes in sovereign credit ratings and their outlook on the stock market returns of European countries at different phases of business cycle. Using standard four-factor model, it records a significant average marginal effect of credit rating announcements on stock market returns. Both magnitude and significance of the effect vary with business cycle and across announcement types. However, we do not find evidence of pro-cyclical effect of sovereign rating and outlook changes on stock returns. Our results show that stock markets react more negatively to rating downgrades in recovery phases and more positively to rating upgrades in contractionary period. Both results are statistically significant and robust to various sensitivity tests.     

我国房地产宏观调控政策效应实证分析

近年来,我国房地产市场虽日趋成熟,但房价波动仍然较大,为此政府对房地产行业进行了多次宏观调控。本文采用中国房地产指数通过GARCH类模型对北京、上海两大城市的住宅和商铺数据进行回归分析,通过分析得出以下结论。其一,政府对房地产的调控政策对各个市场的影响不同,且住宅市场受到的影响要大于商铺市场。其二,政府实施的鼓励或调控的政策对各地房地产市场造成的冲击效用也不相同,以首轮调控“国八条”的冲击是最大的。     

绿色GDP核算研究的误区及其澄清

我国在绿色GDP核算研究中存在着将实际环保费用作为“重复计算因素”从现行GDP中扣除的误区。无论从核算技术的角度上,还是从经济模型的推导上,都证明在绿色GDP核算中不应扣除实际的环保费用,而应扣除的是“潜在的”环保费用。     

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.     

对于我国公平与效率关系的经济学思考

本文主要通过对我国公平与效率关系的描述及当前面临的现状的分析,运用帕累托效率的分析方法,得出公平与效率本质上具有一致性的结论,在此基础上提出公平与效率可以实现最优结合。我国目前正值“十一五”规划纲要的实施初期,大力发展和谐社会,应该在微观领域体现效率优先的原则,宏观领域公平优先的原则,来实现二者的最优结合。     

博弈论视野下的股权分置改革

股权分置改革的本质是非流通股东与流通股东之间关于非流通股流通权的讨价还价博弈,博弈主体是非流通股东与流通股东,而不是上市公司、历史流通股东等。对价博弈中,非流通股东拥有先动优势和耐心优势,不利于保护流通股东的权益;而“未完成股改,暂停再融资和股权激励改革”等措施,有利于纠正耐心优势;从先动优势看,应赋予流通股东以股改提案权。股权分置改革首先应保证程序理性;当前试点公司的股改结果并未真正进入全流通,对于试点之后进入股改的公司没有学习价值;应逐步试行全流通。在对价形式上,应简单合理,要有利于投资者进行价值判断;应摒弃复杂性和不确定性较大的权证方案。     

A review of job embeddedness: Conceptual,measurement issues,and directions for future research

Job embeddedness (JE) theory is a relatively new perspective in turnover research. Although theoretical and empirical implications are encouraging, the construct of JE is still under development. In this paper, we identify five conceptualization and measurement issues warranting additional discussion and research. These are: (1) the composite measure vs. the global measure, (2) conceptual and measurement problems of community embeddedness, (3) conceptual and measurement problems associated with links, (4) discriminant validity issues and (5) the cultural boundaries of JE. For each issue, we discuss our concerns and suggest future research directions.     

Knowledge transfer in project‐based organizations: An organizational culture perspective

This conceptual paper investigates the process of knowledge transfer in project‐based organizations from the perspective of organizational culture. The paper identifies obstacles to knowledge transfer in project‐based organizations and emphasizes the importance of organizational and project cultures in this process. The study provides some suggestions for improving knowledge transfer in project‐based organizations and notes the implications of the paper for project management.     

试论旅游资源所有权与经营权相分离

本文在对旅游资源所有权与经营权“相分离”从理论上作出界定，并指出“不可分离”的理论已磊大落后于改革与发展实践的基础上，对“分离”的必要性、可行性从理论和实践的结合上进行了分析论证，提出了“分离”是保护和开发并重并实现二者良性循环的有机结合点的观点，对实现“分离”必须同时建立起的监管运行机制作了初步探讨。