Innovation in Stock Exchanges: Driving ESG Disclosure and Performance

Stock exchanges are in a unique position to promote ESG transparency and leverage their institutional capacity to build more sustainable capital markets. To facilitate the quick uptake of material ESG disclosure and raise the quality and comparability of the data, the Athens Stock Exchange has created ESG guidelines for listed companies that will be published in the summer of 2019. One important feature of the guidelines is their degree of sectoral specificity and emphasis on materiality. The guidelines and supporting metrics they propose are based on reporting practices endorsed by international sustainability standards like the SASB's industry standards. This materiality‐oriented approach will help issuers focus on the sustainability value drivers inherent in their business, and so ensure that corporate ESG disclosures satisfy the demand of investors for comparable quantitative and accounting metrics that help companies communicate their commitment to long‐term value creation.     

国际市场冲击、名义汇率和股票市场收益——基于汇改后数据的经验研究

运用协整理论和时滞增广VAR模型,研究自2005年7月人民币汇率改革以来我国A股市场、外汇市场和美国股票市场的联动关系及其传导机制,发现美国股票市场通过流量渠道对我国股票市场和人民币汇率产生影响。我国资本市场受到国际资本市场影响的最根本原因在于中国实行的是出口导向型经济增长方式,而不是人民币汇率制度。因此,维护我国资本市场稳定的关键在于转变经济增长方式,在转变过程中要保持人民币汇率的相对稳定。     

证券交易所交易监管的权责和纪律处分程序

我国有关法律、行政法规对于交易所履行监管证券交易的行政职能的法定权威，并没有提供引导性的、可操作性的规范，依照现行法而推导出的“法定授权”是不明确的或仅具有原则性。这种状况使交易所在履行一线监管职能方面处于两难境地。     

国际股票市场、汇率冲击对我国股票价格影响的实证研究

随着金融一体化的发展,20世纪90年代中期以后股票市场联动的现象日益显著,我国外贸依存度不断提高、金融服务业逐步开放,2005年7月21日人民币汇率形成机制改革以来,汇率浮动区间的扩大是否起到了缓解国际市场冲击的作用成为理论界有待探讨的问题.本文分析了美国股票市场和汇率与我国股票价格之间的作用形式和程度,并对汇率是否起到缓解国际股票市场冲击的作用进行了检验.结果表明,在人民币升值的趋势下,汇率变化在股票市场面临负向冲击时,起到一定的缓冲作用;在股票市场面临正向冲击时,起到的是加速作用.     

垄断与竞争：证券交易所变革的经济学分析

证券交易所具有较强的供应方规模经济和需求方规模经济(网络外部性)，两者的交互作用产生了正反馈效应。因此，证券交易所的核心竞争力在于通过低交易成本和市场连接性来引发正反馈效应。……     

日内价格行为与短期过度反应:对中国股市的实证分析

当开盘价格发生大的变动时（相对于前一个交易日的收盘价格），从中国股票市场指数的日内价格行为中发现，随后的日内价格不存在明显的价格反向修正，这表明我国股市不存在短期过度反应。     

中国股票发行市场结构与成长性分析

中国股票发行市场在总量迅猛增加的同时,其结构也随之逐步演变.就筹资方式而言,我国股票发行市场的结构特征是以首次公开发行市场为主,后续融资市场为辅,其中后续发行市场又是以配股为主,增发为辅.应该在总量发展的过程中使结构进一步优化.通过对历史数据分析,可以发现我国股票发行市场的总量发展的势头良好,成长性较好,但是这在另一方面也反映了我国股票流通市场的非理性化程度较高.     

Stock Market Volatility in an Emerging Market: Further Evidence from the Athens Stock Exchange

We investigate the time series properties of the daily and weekly returns from the Athens Stock Exchange (ASE) index for the years 1987 to 1997. We investigate whether important time-series characteristics have changed significantly over time. The Greek market has recently undergone major changes including complete capital flow liberalization, the implementation of computerized trading, as well as significant increases in market volume and capitalization; we thus contrast the 1987–90 and 1991–97 periods. Our findings suggest the dynamics of the ASE composite index returns have changed as the market has developed.     

Stock Exchange Reforms and Market Efficiency: the Italian Experience

This paper examines whether the reforms introduced by the Italian Stock Exchange from 1991 to 1994 (creation of specialised intermediaries, obligation to trade on the official markets, screen-based trading and cash settlement) did increase market efficiency. The issue is addressed using both the traditional information efficiency model, which tests market efficiency by verifying the predictability of prices conditional on some information subset, and a microstructure approach that measures efficiency as the distance of the price movements from their efficient components, represented by a random walk process. The joint analysis of daily and intraday data on prices and volumes validates the hypothesis that most of the reforms have increased market efficiency over the sample period, except for cash settlement, which appears to have substantially reduced it.     

上市公司内部控制缺陷披露现状研究——基于2009-2010年深市主板A股的实证分析

本文以2009~2010年深市主板A股上市公司披露的内部控制自我评估报告为依据,分析了内部控制缺陷披露的整体状况、具体类型及存在的问题。研究发现,2010年披露缺陷的公司数量显著低于2009年,内部控制整体水平逐年提高,存在缺陷较多的要素是内部环境、控制活动、信息与沟通。在披露过程中,上市公司主动披露内部控制缺陷的意识不强,缺乏内部控制缺陷的认定和披露标准,且部分公司对内部控制缺陷界定不清楚。     

国际交易所交易衍生品市场的发展趋势

近年来,国际交易所交易衍生品市场呈现出金融衍生品成为市场主导、交易所之间的竞争日趋激烈、交易所股份制改造蔚然成风、交易所清算业务走向合并和另类衍生品层出不穷等五大趋势。     

An Empirical Analysis of Stock and Bond Market Liquidity

This article explores cross-market liquidity dynamics by estimatinga vector autoregressive model for liquidity (bid-ask spreadand depth, returns, volatility, and order flow in the stockand Treasury bond markets). Innovations to stock and bond marketliquidity and volatility are significantly correlated, implyingthat common factors drive liquidity and volatility in thesemarkets. Volatility shocks are informative in predicting shiftsin liquidity. During crisis periods, monetary expansions areassociated with increased liquidity. Moreover, money flows togovernment bond funds forecast bond market liquidity. The resultsestablish a link between "macro" liquidity, or money flows,and "micro" or transactions liquidity.     

股票市场与外汇市场之间的溢出效应:基于汇改后数据的实证分析

本文采用双变量EGARCH模型,实证分析了我国汇改后股市与汇市之间价格和波动的溢出效应,同时还以2008年10月为界将样本分为两个子样本来考察溢出效应是否发生结构变化.研究发现:(1)从整个样本看,存在从汇率变化到股指收益的价格溢出效应,在子样本1中存在从股市到汇市的价格溢出效应;(2)在子样本中存在从汇市到股市的波动溢出,在整体样本及两个子样本中都存在从股市到汇市的波动溢出.本文还分析了实证结果背后的原因,并讨论了相应的政策启示.     

外汇期货市场发展的国际经验与启示

本文梳理了部分发达国家和新兴经济体发展外汇期货的路径和历史沿革,总结了我国早期发展外汇期货的经验教训,分析了当前境外人民币期货市场发展的现状。提出实现浮动汇率制度不是一国外汇期货成功的必要条件,流动性和实需满足才是外汇期货成功的关键。研究认为,存在资本管制国家发展外汇期货需协调与货币政策的一致性,防范交易的顺周期风险。制度安排上,本币兑美元期货是最符合实需的交易品种,合约设计应严格论证投机与实需的区别,处理好外汇期货与按金交易的非零和选择关系。     

股票、股指期货跨市场信息监管的国际比较及借鉴

股指期货推出后,股票市场和股指期货市场跨市场信息监管成为金融监管机构亟待解决的问题。本文以金融市场微观结构理论和信息经济学为基础,结合股指期货和股票市场的风险关联特性,研究信息在股指期货市场和股票市场传导的一般规律,并分析了跨市场信息监管在信息传导过程中的作用;以此为基础,分析比较了海外证券市场跨市场信息监管具体运作体系,并结合我国证券市场特殊性提出我国股票市场和股指期货市场跨市场信息监管框架、流程和以跨市场信息监管为核心的监管手段。     

Mandatory Disclosure,Voluntary Disclosure,and Stock Market Liquidity: Evidence from the EU Bank Stress Tests

We use the EU stress tests and the Eurozone sovereign debt crisis to study the consequences of supervisory disclosure of banks’ sovereign risk exposures. We test the idea that a mandatory one‐time disclosure induces an increase in voluntary disclosures about sovereign risk in the following periods and, through the shift in the voluntary disclosure equilibrium, increases the liquidity of banks’ shares. First, we find that the timing and content of different mandatory disclosure events helps explain the levels of stress‐test banks’ voluntary disclosures about sovereign risk. Second, although the bid‐ask spreads of stress test participants generally increased after the mandatory stress test in 2011, our results suggest that the decrease in market liquidity is entirely attributable to those stress‐test participants that did not commit to voluntarily maintaining the disclosures of sovereign risk exposure.     

金融危机背景下中国股市和汇市关联效应的实证

运用协整检验、Granger因果检验、向量误差修正模型、方差分解等对金融危机发生前和金融危机发生后中国汇市和股市的关联效应进行实证研究,结果表明无论从短期还是从长期看,金融危机发生前汇率是股价的单向Granger原因,汇率对股价波动的影响较大,股价对汇率的波动影响很小。而在金融危机发生后,汇率和股价存在着双向的因果关系,汇率对股价波动的影响以及股价对汇率波动的影响都较大。金融危机发生后汇市和股市的关联效应明显增强。