• 详情 政府干预、政治关联与权益资本成本
    以1999—2001 年沪深两市334 个配股上市公司样本为研究对象,实证研究 了政治干预、政治关联与权益资本成本间的关系。我们的研究发现,政治干预对国有企业的 权益资本成本产生了显著地负面影响。政治关联整体上并没有影响国有企业的权益资本成 本,但考虑不同的政治干预程度后,政治关联在政治干预比较厉害的公司能提高权益资本成 本。另外,非国有企业的政治关联同样增加了企业的权益资本成本。结果说明政治关联给大 部分公司带来的是更大的政府干预的风险。
  • 详情 中小企业融资结构变化及信贷约束分析
    本文以企业金融成长周期模型为基本理论框架,运用对吴江和常熟中小企业的 实地抽样调查数据,以美国中小企业为参照,揭示了我国经济发达地区中小企业不同成长阶 段融资结构及其变化规律。研究表明:中小企业的融资结构变化基本符合金融成长周期理论, 但初创期和成长期信贷约束严厉,且固定资产贷款约束尤为严厉。进一步的实证分析表明, 信贷约束的外部制约因素主要是国家信贷政策和担保难;中小企业资信、盈利能力、负债水 平和可用于抵押的固定资产多少是影响企业信贷获得能力的主要内因,企业规模和年龄也有 影响,而企业组织形式和直接融资成本对贷款获得影响不明显。
  • 详情 管理者代理行为、公司过度投资与企业生命周期
    已有对代理行为与公司过度投资之间关系的文献研究大都从静态层面进行,本研究通过 构建企业生命周期划分指标,从企业发展进程的动态层面考察管理者代理行为与公司过度投资关系 随企业生命周期的演变,并在此基础上,检验公司治理机制随企业生命周期的治理效果。结果表明, 管理者代理行为随企业生命周期动态变化,其对公司过度投资的影响随着企业生命周期阶段由成长、 成熟到衰退的发展而不断减弱,公司治理机制的治理效果随企业生命周期阶段也发生变化,其中不 同机制对过度投资的治理作用存在差异。对管理者行为及公司治理机制的动态考察,有助于提升对 管理者行为的深入认识,促进公司治理机制的动态调整与变革,进而提高公司的资本配置效率。
  • 详情 公开增发市场反应与市场环境——基于投资者情绪的研究
    本文以我国10年来实施公开增发的A股上市公司为样本,考察不同市场环境下增发市场反应的差异及其原因。研究发现, “牛市”、“盘整市”与“熊市”三种市场环境下,增发公告的负效应依次递增。鉴于市场环境与投资者情绪之间有较强的联动性,随后,我们实证检验了投资者情绪与增发市场反应之间的关系,结果表明,两者显著正相关,即不同市场环境下公开增发市场反应的差异源于投资者情绪。
  • 详情 国有上市公司并购的产业路径及效应--兼对“国企进退”现象解读
    本文结合国有企业改制与产业结构调整的转型期背景,对国有 上市公司并购的产业路径及绩效进行理论分析,并以我国沪深股市 2003年-2007年国有控股上市公司股权收购为样本进行了实证检验。 研究发现,在相关并购路径下,相比于劳动密集型和技术密集型行业, 发生在资本密集型行业的并购提高国有上市公司绩效的同时,也提升 了产业集中度;在非相关并购路径下,产业创新型并购比非产业创新 型并购具有更高的产业效应,并且并购绩效显著优于非产业创新型并 购。这些发现凸现了国企并购的市场结构效应与产业结构效应,也揭 示了国企进退的效率路径。其政策含义在于,国有企业应遵循经济结 构演进优化的产业路径有进有退,坚持市场化导向和产业创新导向。
  • 详情 过度自信抑或代理问题?——基于管理者视角的并购动因研究
    目前,学术界对公司高管发动并购事件的动因及并购毁损股东价值的解释尚未形成一致的观点。本文基于主并公司管理者的两个不同视角——理性管理者的道德风险行为视角及非理性管理者的过度自信心理偏差对公司并购动因展开深入探讨,试图重新检验管理者过度自信对并购动因的影响,并甄别两个理论在解释并购动因问题上的相对解释作用。并且,本文不仅关注了公司管理者的并购决策,还进一步研究了连续并购这一我国公司并购的普遍现象。出于上述研究目的,本文以2000-2007年全部A股上市公司作为样本,采用离散型因变量的面板数据Logit回归和负二项回归方法,得到了一些重要结论。实证结果表明,公司管理者的过度自信心理偏差并不能解释主并公司管理者并购与否的决策,也不能解释连续并购为何频繁发生的现象;当对管理者过度自信、代理成本在解释并购动因问题中的相对解释力进行研究时,本文发现支持代理理论的证据充分,但管理者过度自信的测度对管理者的并购决策或公司并购频率和次序都没有表现出任何显著的解释作用,从而确立了代理理论在管理者视角并购理论中的主导地位。除此以外,本文还发现在管理者机会主义的自利动机一定的情况下,管理者的经验对公司并购动因的作用是积极的,即能够降低管理者发起公司并购的可能性。
  • 详情 Wealth Effects and Financial Performance of Cross–Border Mergers and Acquisitions In Five East Asian Countries
    Various studies have been done on wealth effects and financial performance of firms in different countries but have yielded mixed results. Data on completed deals of Cross-border Mergers and Acquisitions (CBMAs) comprising public listed firms with more than ten percent of share acquisition in five East Asian countries were analysed using event study and key financial ratios. Although the results for average abnormal returns in Indonesia and Korea were inconclusive, the results for Malaysia, Thailand and the Philippines suggest that the market had reacted positively adding value to the target firms at merger announcements. There was a significant improvement in targets’ free cash flow after CBMAs when compared to both before CBMAs and also control firms after CBMAs. The results also reveal that that these five East Asian countries have moved towards more efficient markets.
  • 详情 Target Firm Risk - Return Changes due to Cross-border Mergers and Acquisitions in Emerging Markets
    We examine the impact of cross-border mergers and acquisitions on a target firm’s risk and return based on a sample of partially acquired target firms in 18 emerging countries between 1990 and 2007. We find that cross-border acquisitions significantly reduce both the total and downside risk of the target firms and that this reduction is more significant in acquisitions undertaken by bidders from countries that have better protection of investor rights. We also show that this risk reduction improves the risk adjusted performance of these firms. Thus, we conclude that cross-border partial acquisitions benefit an emerging market investors’ risk-return trade off by reducing investment risk and increasing investment returns; policy makers in emerging markets may be well advised to open their markets for partial cross-border acquisitions.
  • 详情 Government Ownership, Synchronicity and M&A Performance: Evidence from Chinese Market
    In this paper, we empirically examine the relationship between government ownership, synchronicity and M&A performance in Chinese market. We found strong evidence to support “Helping Hand Hypothesis” that bidders with high government ownership yield better performance in both the short run and the long run. We also document a negative relationship between synchronicity measure and M&A performance. Various explanations have been offered to explain this phenomenon. In addition, we find both political influence and stock market valuation play an important role to forecast M&A outcome in China market. Within hot political period, government-related bidders yield better performance in the short run, while in high valuation period, public bidders receive higher premium.
  • 详情 Asymmetric Information and Market Collapse:Evidence from the Chinese Market
    In this paper, using data for the period January 1995 to May 2009 for the Shanghai stock exchange (SHSE), we show that aggregate illiquidity is a priced risk factor. We develop the relationship between the illiquidity factor, asymmetric information, and market collapse. Our empirical results show that while the illiquidity factor is a source of asymmetric information on the SHSE, asymmetric information does not trigger a market collapse.