正向反馈申购者、市盈率管制与新股发行定价

传统的新股发行定价偏低观点受到了一些定价偏高实证现象的质疑,且难以解释我国长期实行的发行市盈率管制政策。本文在原有信息不对称理论的基础上,从正向反馈的非理性角度研究发行定价,进而分析市盈率管制政策的作用,并实证检验。研究认为,新股发行市场中存在着大量的正向反馈申购者,他们受近期新股上市表现激发而参与申购,这种噪声需求的存在使得新股即使被高估也仍然能够成功发行。发行人和承销商意识到这种噪声需求的存在,为了使其利润最大化,他们会抬高发行定价,而机构投资者在近期新股上市表现较好的情况下也易于高估新股,因此也能接受较高的询价价格。实证结果验证了正向反馈申购者对发行定价的这一正向影响,并且发现市盈率管制政策能够对此起到一定的抑制作用。     

Individual investor’s limited attention and IPO performance

The paper models and verifies the spread and decay of investor’s attention before listing on the stock market by using the Baidu Index as a proxy for investor attention of the frequency of searches. We find that individual investor’s attention has a significant influence on the first-day IPO return. We empirically study the allocation of investor attention among several stocks and discover that the more stocks going public on the same day, the milder and more similar their performance tends to be. This paper is the first to research IPO performance and individual attention.     

基于所有权分散理论的IPO抑价现象实证分析

IPO抑价一直都是金融界研究的焦点问题。但至今IPO抑价现象的成因仍未形成统一的认识。本文选取了2009年1月1日到2010年3月19日期间在深圳成功的IPO的35家公司中的119只股票进行了分析。结果发现:所有权越分散,抑价率就越低,二者呈负相关。     

铁路非运输企业股改上市路径探讨

铁路非运输企业股改上市是国铁资产股权化证券化的重要组成部分,也是深化铁路非运输企业混合所有制改革的关键。铁路非运输企业股改上市与铁路运输主业以及其他类型的公司相比有所不同。在分析铁路非运输企业特性基础上,阐明其股改上市面临的主要问题以及待突破的重点,最后以哈尔滨国铁科技集团股份有限公司为例,从企业内部重组、引入战略投资人、股份制变更以及IPO申报等方面,提出铁路非运输企业股改上市的具体路径以及股改上市后需要进一步完善的事项,研究可以为铁路非运输企业改革提供借鉴。     

IPO抑价与证券市场制度变迁

IPO抑价是股票市场一个普遍存在的一个现象,我国也不例外。国外的理论重在研究IPO抑价的原因,且这些理论都是建立在市场有效的前提条件之上的,用这些理论解释我国IPO抑价率过高的情况不是特别合适。本文就我国证券市场各个阶段定价方式和发行制度的特征及各阶段IPO抑价率的情况做一简要分析,并针对IPO抑价存在的问题提出对策建议。     

创业板市场的IPO研究

本较为全面地研究了创业板的IPO市场。风险企业IPO是风险资本退出的有效渠道,风险型企业中的“内部投资”－风险投资家,将在企业IPO煌时间决策,定价和股权结构等方面发挥特别作用;同时邓创业板市场的定价,承销机制提出了一些建议。     

REASONS FOR DELISTING AND CONSEQUENCES: A LITERATURE REVIEW AND RESEARCH AGENDA

This paper discusses the literature on delisting, drawing on USA and international evidence. Given the great heterogeneity in delisting operations, we first consider the standard existing typology based on the initiator of the delisting (the stock market authorities, or the firm itself). Second, while managers often cite high compliance costs (especially due to Sarbanes–Oxley Act implementation) as the official reason for the voluntary delisting of their firm, we highlight that firms face different trade-offs in their delisting decision. We also examine the reasons for involuntary delisting, especially the delisting dilemma faced by stock market authorities when the firm violates the listing requirements. Next, we review the economic consequences of delisting in terms of value creation or value destruction for shareholders. Finally, noting gaps in the literature and other contrasting results, we propose suggestions for future research.     

风险投资参与对中资企业首次公开发行折价的影响——不同证券市场的比较

本文考察中资企业在不同市场上市时风险投资的参与是否影响首次公开发行折价。研究发现,在大陆中小板和香港主板市场上市的中资企业中,有风险投资参与的企业IPO折价显著高于无风险投资参与的企业,支持声誉效应假说,即风险投资机构以IPO折价来提早退出投资项目,以此来建立自己的声誉,吸引更多的资金流入。在美国市场风险投资的参与对IPO折价则没有显著影响。本文进一步研究发现从业时间短的风险投资机构,其参与投资的公司上市时的历史也较短;风险投资进入企业的时间越长,IPO折价水平也越高。这两个检验都验证了风险投资机构通过IPO折价提早退出投资项目,进一步支持了声誉效应假说。     

SPAC merger announcement returns and subsequent performance

Special purpose acquisition companies (SPACs) are created to raise capital and then find non-listed operating companies with which to merge. While most of the extant research has focused on SPAC initial public offerings, we study what happens when SPACs announce business combinations. Our analysis of 236 ‘deSPACs’ completed between January 2012 and June 2021 in the United States documents an average short-term announcement return of +7.4% and a 1-year abnormal return of −14.1% (−18.0% over 2 years) for public investors beginning from the merger announcement. Short-term returns decrease with longer times from initial public offering until announcement.     

The institutional determinants of private equity involvement in business groups—The case of Africa

This study examines the governance attributes of post-IPO (initial public offering) retained ownership of private equity in business group constituent firms in contrast to their unaffiliated counterparts, in 202 newly listed firms in 22 emerging African economies. We adopt an actor centered institutional-theoretic perspective in rationalizing institutional voids and the advantages of maintained governance by both business angels (BA) and venture capital (VC) private equity. Our findings reveal private equity retain higher post-IPO ownership in business group constituents compared to unaffiliated firms and that this is inversely moderated in the context of improving institutional quality – where this is particularly strong in case of foreign VC as opposed to domestic VC or BA. Our result adds to the literature on multifocal corporate governance mechanisms and the institutional determinants of private equity investment.