资本市场对外开放与股价异质性波动——来自“沪港通”的经验证据

本文基于“沪港通”这一外生政策,探讨了资本市场对外开放对股价异质性波动的影响机理。研究发现:“沪港通”实施能够降低“沪股通”标的股票股价的异质性波动,且在“沪股通”活跃成交股样本中更为明显;深入研究发现“沪港通”通过促使企业提高信息披露质量,从而降低股价异质性波动。本文研究表明“沪港通”实施对于维护我国资本市场稳定健康发展具有重要作用,亦为后续资本市场对外开放政策提供了一定的经验借鉴。     

沪港通对沪港两市波动性的影响 —基于GARCH模型的实证分析

沪港通作为联结沪港两地证券市场的重要桥梁,是我国资本市场对外开放的一次 重要尝试,其对证券市场的影响十分值得研究和关注。本文比较分析了沪港通前后两市的波动 情况,并分别选取沪港通开通前的2012年11月19日到2014年11月14日及沪港通开通后的2014年 11月17日至2016年11月17日的上证指数、恒生指数作为研究上海股票市场和香港股票市场的原 始数据,进行描述分析、GARCH模型实证分析和格兰杰因果检验,发现沪港通的开通加剧了 沪港两市的波动性,加强了沪港两市的联动性。     

资本市场开放与企业金融资产配置 ——基于沪港通交易制度的经验证据

沪港通交易制度作为我国资本市场双向开放的一项重大突破,吸引了众多学者的关注.利用沪港通交易制度这一外生政策,基于双重差分模型实证检验了资本市场开放对企业金融资产配置的影响.研究发现:沪港通交易制度的实施显著提升了标的企业金融资产配置水平,一系列稳健性检验后结论仍然成立.进一步研究发现,沪港通政策通过缓解企业的融资约束,从而影响企业金融资产配置水平;沪港通政策对标的企业金融资产配置的影响需通过香港地区投资者的活跃交易来实现.此外,沪港通交易制度对企业金融资产配置的正向影响仅在非国有企业样本中显著.本文研究结论不仅扩展了资本市场开放经济后果的研究,也为企业基于利润最大化的"投机替代"动机持有金融资产提供了经验证据.     

股票市场开放与企业投资效率——基于“沪港通”的准自然实验

资本市场的持续对外开放是党的十九大强调的重要举措。本文基于沪港通开通这一准自然实验,检验了股票市场开放对企业投资效率的影响。结果发现:沪港通的开启促进了标的公司投资效率的提高,这一影响主要体现在信息环境不透明、治理水平低的公司;机制分析发现,沪港通开启后,公司信息质量的提高和分析师预测准确度的增加是股票市场开放影响标的公司投资效率的重要渠道;最终标的公司在沪港通开通后经营业绩也得到提升。本文结论表明,股票市场开放改善了公司的投资效率,提高了对实体经济的服务能力,这对党的十九大提出的“深化资本市场对外开放”和“金融服务实体经济”系列改革有重要启示。     

沪港通的来临对AH股溢价指数的影响分析

沪港市场的开通标志着中国资本市场对外开放的进一步深化,对人民币国际化以及巩固香港国际金融中心地位和推动上海国际金融中心建设具有重要的作用。随着沪港通的来临,AH股的溢价指数也随之发生着变化。本文通过对沪港通开通前后不同行业的样本股AH溢价指数进行对比分析,并结合沪港两地的资本市场,对产生AH股溢价指数变化的原因及影响进行分析和研究。     

资本市场开放与股权资本成本——基于沪港通、深港通的实证研究

本文基于沪港通和深港通研究资本市场开放对中国内地股权资本成本的影响。研究发现,受政策风险和市场环境等因素所限,沪港通在初始阶段并未对沪市公司的股权资本成本产生显著影响,但随着政策进一步完善、市场逐渐稳定和交易不断活跃,其对股权资本成本的降低效果于实施两年后开始显现;深港通建立在沪港通的制度基础和运行经验上,其在开通后显著降低了标的公司的股权资本成本。本文还进一步分析了资本市场开放影响股权资本成本的竞争渠道和信息渠道,发现深港通对股权资本成本的降低作用主要集中在投资者竞争程度较高,或是公开信息质量较高、信息不对称程度较低的股票样本。     

资本市场开放与股权资本成本——基于沪港通、深港通的实证研究

本文基于沪港通和深港通研究资本市场开放对中国内地股权资本成本的影响。研究发现,受政策风险和市场环境等因素所限,沪港通在初始阶段并未对沪市公司的股权资本成本产生显著影响,但随着政策进一步完善、市场逐渐稳定和交易不断活跃,其对股权资本成本的降低效果于实施两年后开始显现;深港通建立在沪港通的制度基础和运行经验上,其在开通后显著降低了标的公司的股权资本成本。本文还进一步分析了资本市场开放影响股权资本成本的竞争渠道和信息渠道,发现深港通对股权资本成本的降低作用主要集中在投资者竞争程度较高,或是公开信息质量较高、信息不对称程度较低的股票样本。     

资本市场开放与会计信息可比性——来自“沪港通”的经验证据

以2014年“沪港通”的实施作为外生事件，基于双重差分模型实证检验“沪港通”政策对于会计信息可比性的影响。研究发现：“沪港通”政策的实施显著提升了上市公司会计信息的可比性；“沪港通”政策通过公司治理机制提高了上市公司会计信息的可比性。“沪港通”政策对于提高我国资本市场的会计信息质量具有一定的积极作用，为我国后续资本市场进一步对外开放提供了经验证据。     

资本市场开放能够提升企业价值吗?——基于沪港通的证据

沪港通的实施是我国资本市场开放的里程碑事件,本文基于国际资产定价模型(IAPM),采用PSM-DID方法检验了沪港通的实施对企业价值的提升效应。研究发现,沪港通的实施可以使沪港通标的公司价值显著提升,在更换政策时间、虚构处理组、替换核心变量后该结论仍然显著;拓展性检验结果表明,沪港通通过增加资本市场流动性、改善公司治理、降低系统性风险等机制提升企业价值。     

套利限制会加剧A-H股定价偏差吗?

本文从资产交易面临的直接约束视角,对套利限制与A-H股定价偏差之间的关系进行分析。以A-H股交叉上市公司为样本,研究发现:(1)套利限制会显著加剧A-H股定价偏差;(2)机构持股比例较高的公司和沪(深)港通开通之后的时间段,套利限制引起的定价偏差边际效应显著降低;(3)相比于制度性限制因子,机构持股和沪(深)港通开通能够更显著降低市场性限制因子对A-H股定价偏差的影响。结果表明,机构投资者的成长、互联互通政策有助于降低市场性限制,从而提高资本市场定价效率,但仍受到内地资本市场既有交易制度设计的约束。     

Short-sale refinancing and price adjustment speed to bad news: Evidence from a quasi-natural experiment in China

Short selling may accelerate stock price adjustment to negative news. However, the literature provides mixed evidence for this prediction. Using short-sale refinancing and a staggered difference-in-differences (DID) model, this paper explores the effect of short selling on stock price adjustment. Our results show that (1) short-sale refinancing improves the speed of stock price adjustment to negative news. This result holds after we control for endogeneity. (2) The positive relationship between short-sale refinancing and stock price adjustment speed is significant in subsamples of stocks with higher earnings management or lower accuracy of analyst forecasts, indicating that firms with more opaque information are more likely to be targeted by short sellers. In subsamples of stocks with a higher ownership concentration or lower ownership by institutional investors, short selling is more likely to increase the speed of stock price adjustment, indicating that ownership structure may influence negative news mining. (3) As short-sale refinancing exacerbates the absorption of bad news by stock prices, it increases crash risk. This study enriches the research on the economic consequences of short selling and provides empirical evidence supporting regulations on short selling in China.     

Guidelines for Manuscripts Submitted to The China Journal of Accounting Research

正The China Journal of Accounting Research"CJAR"(ISSN 1755-3091)publishes quarterly.It contains peer-reviewed articles and commentaries on accounting,auditing and corporate governance issues that relate to the greater China region.We welcome the submission of both theoretical and empirical research papers pertinent to researchers,regulators and practitioners.Authors should note:     

The China puzzle: Opportunities for accounting research

How can China achieve phenomenal economic growth despite what is considered as 'weak' institutions in market-based economies? Xu(2011) provides a framework to u...     

Aims and Scope

<正>The focus of the China Journal of Accounting Research is to publish theoretical and empirical research papers that use contemporary research methodologies to...     

Income smoothing and the cost of debt

The literature on income smoothing focuses on the effect of earnings smoothing on the equity market.This paper investigates the effect of income smoothing on th...     

The case for management history

This article defines the case for treating management history as a discrete subject area, although one closely related to business, accounting, labour, and industrial history. It seeks to concentrate on the nature, process, and practice of management as an activity within the organization, and to argue that it is important that modern British managers understand the intellectual and cultural roots of their profession, since without these they will tend to be swayed by short-term management 'fads'. Within the broad topic there are several identifiable sub-areas for potential exploration, including the comparative historical development of management between different countries, management institutions, managerial careers and labour markets, management structures, management skills, and management thought and theory.     

Cost accounting standard and cost accounting systems in Japan. Lessons from the past - recovering lost traditions

This paper aims to show two things. The first is how Japanese culture has contributed to the development of Japanese cost accounting history. The second is to reveal the research possibilities of cost accounting history. This paper also reviews the salient features of several important examples of these aspects of cost accounting practice in Japan. It therefore explores, through some practical illustrations, how and why Japanese cost accounting differs from that found in the West.     

The life and career of John Spence Ogilvy (1805-71), the first chartered accountant to emigrate to Australia

So far as the available evidence allows, this paper examines the life and career of John Spence Ogilvy, foundation member of the Society of Accountants in Edinburgh in 1854, who emigrated to Melbourne in 1856, but did not play a part in the development of an organized accounting profession in Australia. The paper also attempts to explain the gap of thirty-two years between the formation of the first accounting bodies in Edinburgh and Melbourne.     

Guidelines for Manuscripts Submitted to The China Journal of Accounting Research

【正】The China Journal of Accounting Research‘‘CJAR’’(ISSN 1755-3091)publishes quarterly.It contains peer-reviewed articles and commentaries on accounting,auditin...     

Shared Standard Setting in the Public Interest:A Strong Model

正The last two decades have been a definitive era in the evolution of the accountancy profession.In the wake of major corporate scandals at the turn of the century,an international public debate arose on the need for more effective and well-considered regulation;this debate then reignited during the global financial and sovereign debt crises.