公司特征、股权结构与股票流动性

股票流动性是金融市场微观结构的核心议题,其影响因素问题受到了人们的广泛关注。然而,以往的研究存在两个方面的重要缺陷:一是多数研究仅关注了股权结构对股票流动性的影响,而忽略了公司特征因素的作用;二是以往股权结构视角的研究由于存在研究设计上的问题,使得实证结论的可靠性不高。本文使用2003-2009年沪深两市仅发行了A股的上市公司为样本,采用高频交易数据构造买卖价差以衡量股票流动性,考察了公司特征、股权结构与股票流动性之间的关系,以及股权分置改革对这一关系的影响,得到了与以往研究不同的实证结论。针对这些结论,本文给出了符合我国制度背景的理论阐释。     

Type of earnings management and the effect of ownership structure, firm size, and corporate-governance practices: Evidence from Indonesia

The purpose of this study is to investigate whether companies listed on the Jakarta Stock Exchange (JSE) conduct efficient or opportunistic earnings management and to examine the effect of ownership structure, firm size, and corporate-governance practices on it.Using multiple regressions, we find evidence that the type of earnings management selected by JSE listed firms tends toward efficient earnings management. This evidence is inconsistent with the common view that earnings management in Indonesia is opportunistic. Family ownership has a significant influence on the type of earnings management selected. Firms with a high proportion of family ownership and non-business groups are more inclined to choose efficient earnings management than other types of firms. We find inconsistent evidence with regard to the impact of institutional ownership, firm size, and corporate-governance practices on type of earnings management.     

中小企业板上市公司股权结构、公司治理与企业绩效:基于随机前沿生产函数的分析

本文通过构建深圳中小企业板上市公司股权结构影响企业绩效的复合随机前沿生产函数,利用2006—2008年面板数据对中小企业的股权结构和企业绩效的关系进行了经验研究,结果表明中小企业的股权集中度与企业绩效之间显著正相关,这与国内文献中对大公司的经验研究结果一致,表明当前上市公司的股权集中有利于公司治理改善和企业绩效的提高。但是第一大股东持股比率却与绩效负相关,这与对大公司的研究结论相反,表明在中小企业中存在较为明显的"隧道挖掘"现象,"一股独大"在中小企业中并不利于公司治理。研究结果还表明,国家、法人、外资或个人对公司治理的绩效无显著差异;流通股比重、高管持股、研发人员投入等都与企业绩效不相关;中小企业具有较强的股权融资倾向,不符合"啄食顺序"的资本结构理论。     

Are Multiple Directorships Beneficial in East Asia?

We posit that the benefits and costs of multiple directorships are conditional on firm characteristics. We find firm valuation is positively associated with multiple directorships in (i) firms with high advising needs and (ii) firms with high external financing needs. These beneficial effects of multiple directorships are generally stronger in countries with weak shareholder rights and in firms that are widely held. However, when controlling shareholder hold high voting‐rights to cash‐flow rights, multiple directorships reduce firm valuation, especially in countries with weak shareholder rights and in closely held firms. As multiple directorships increases, cash holdings (capital expenditures) contribute less to shareholder value. The negative association between value of cash (capital expenditure) and busy boards is mitigated in firms with (i) high advising needs, (ii) high external financing needs and (iii) less entrenched ownership structures.     

Liquidity commonality and spillover in the US and Japanese markets: an intraday analysis using exchange-traded funds

This article examines the intraday returns and liquidity patterns of the Standard & Poor’s Depositary Receipts (SPY) and the iShares Morgan Stanley Capital International Inc. (MSCI) Japan Index Fund (EWJ). These exchange-traded funds seemingly have very different holdings, namely, US stocks and Japanese stocks. Our findings suggest that some commonality exists in the returns and liquidity of these apparently different assets. First, there are intraday, daily and monthly patterns in the measures of liquidity for both funds. Second, the measures of liquidity are correlated across these two assets. Third, there is evidence of intraday spillover in the mean, volatility and depth from the SPY to the EWJ, but daily spillover is not observed. Our study extends two evolving strands of the literature: the integration of world markets in terms of returns behavior, and the other strand suggests that liquidity may have a systematic, or market-wide, component. This paper provides direct evidence of the integration between the US and Japanese markets because contemporaneous trading prices for the US (SPY) and Japanese (EWJ) indices are employed.

Does economic policy uncertainty raise corporate precautionary cash holdings? Evidence from China

Using China as the research setting, this paper investigates the relationship between economic policy uncertainty and corporate precautionary cash holdings. Empirical results show a U-shaped relation between economic policy uncertainty and corporate precautionary cash holdings. Empirical analysis, in terms of ownership structure, firm size, corporate competitiveness and geographical location, further shows that (i) the effects for economic policy uncertainty in both state-owned and non-state-owned enterprises are significant, but the effect is stronger for state-owned enterprises; (ii) such significant effect is also found more strongly in small and medium-sized enterprises and highly competitive enterprises; and (iii) the effects for eastern, central and western China are all statistically significant, but the effect is strongest for eastern China.     

Are founding families special blockholders? An investigation of controlling shareholder influence on firm performance

This paper examines how family and non-family ownership affects the performance of Swiss listed firms from 2003 to 2010. We distinguish between these two types of controlling shareholders since they have different objectives. We hypothesise that only family shareholders have a real incentive to reduce agency costs whereas non-family blockholders are similar to widely held companies. Our results show that family firms are more profitable than companies that are widely held or have a non-family blockholder. For market valuations we find that the family stake plays a critical role and document a concave relationship between family ownership and Tobin’s Q. We also investigate the impact of different features of family firms on performance, and document that the generation of the family and the active involvement of the family play an important role for market valuation.     

Does high-quality auditing decrease the use of collateral? Analysis from the perspective of lenders’ self-protection

We examine the association between audit quality and the use of collateral in a sample of Chinese firms from 2005 to 2011. Using the full sample, we document a negative relationship between audit quality and the use of collateral that is consistent with lenders' interests. We also show that audit quality and collateral are regarded as alternative means of reducing debt credit risk. Our conclusions are robust after using an auditor-switching test, the Heckman two-stage model and a propensity-score matching model to address endogeneity issues. China's institutional background is also considered. First, we find that in the group of firms in which large shareholders are able to control borrowers' activities, the substitution effects between collateral and audit quality are reduced when the degree of separation between large shareholders' control and ownership is high. Second, these substitution effects are greater when the borrowers' ultimate controller is a state-owned enterprise(SOE) rather than a non-state-owned enterprise(NSOE). Third, the differences in substitution effects between NSOEs and SOEs are smaller in areas with a high marketdevelopment index. We conclude that the substitution effects are smaller in high credit risk firms than in low credit risk firms.     

股权分置改革对国有控股比例以及企业绩效影响的研究

2005年施行的股权分置改革对我国资本市场有着深远意义,但关于此次改革对上市公司股权结构和公司绩效的影响仍鲜有研究。本文基于上市公司2002至2011年的面板数据,利用双重差分方法考察了股权分置改革对于不同行业国有控股比例的影响;并进一步利用工具变量方法研究了国有控股比例与企业绩效的因果关系。结果表明,非国家重点战略行业公司在股改后,其国有股权下降幅度显著高于战略行业公司;同时,国有控股下降使非战略行业公司的盈利能力和市场评价指标有显著提高。     

Insider Ownership and Firm Value: Evidence from Real Estate Investment Trusts

Real estate investment trust (REIT) provides a unique laboratory to study the relation between insider ownership and firm value. One, a REIT has to satisfy special regulations which weaken alternative mechanisms to control agency problems. Empirically, I find a significant and robust nonlinear relation between Tobin's Q and REIT insider ownership that is consistent with the trade-off between the incentive alignment and the entrenchment effect of insider ownership. Two, many REITs are Umbrella Partnership REITs (UPREITs) which have dual ownership structure. They have both common shares and Operating Partnership Units (OP units). Property owners can contribute their properties to the UPREIT in exchange for OP units. Their capital gains taxes remain deferred as long as they hold onto their OP units and the UPREIT does not sell the properties they contributed. OP units owners are locked in with the firm and have incentive to monitor firm management, but their interests diverge from the common shareholders because their tax bases are much lower. Consistent with the trade-off between positive monitoring effect of OP units and tax-induced agency costs, I find that UPREIT's firm value increases with the fraction of OP units, but the effect is significantly weaker for the UPREITs where insiders hold OP units.     

经营者股权激励与企业价值——基于内生性视角的理论分析与经验证据

本文首次从内生性视角研究中国上市企业经营者股权激励的影响因素及与企业价值相关性的问题。遵循内生性的研究思路,选取高科技上市企业2001—2004年均衡的平行数据为研究样本,通过研究发现:各种企业可观测特征和不可观测因素对经营者股权激励水平有显著影响。在此基础上,以托宾Q值表示企业价值时,我们发现,对高科技企业来说,即使考虑到内生性影响,经营者股权激励与企业价值之间仍然存在强烈的区间效应,即经营者股权激励水平与企业价值之间存在倒U型关系。大力加强经营者股权激励的程度,将有助于高科技企业价值的提升。     

全球商业银行流动性风险管理与监管的发展状况及其启示

本文结合2007年夏秋爆发的美国次级债风波引发的全球流动性危机,从实践角度,对全球流动性风险的管理及其监管进行了一些探索和研究,着重分析了目前面临的挑战和显现的问题。同时结合国际良好做法,对加强我国流动性风险管理及其监管提出了相关建议,一是要切实高度重视商业银行流动性风险管理的监管;二是要及时制定流动性风险管理监管指引并加强对商业银行流动性的监控;三是要加强国际流动性风险管理和监管的跟踪研究;四是要加强各方协作,营造良好的流动性风险管理及监管环境。     

The pricing of deposit insurance in the presence of systematic risk

Based on the Merton (1977) put option framework, we develop a deposit insurance pricing model that incorporates asset correlations, a measurement for the systematic risk of a bank, to account for the risk of joint bank failures. Estimates from our model suggest that actuarially fair risk-based deposit insurance that considers only individual bank failure risk is underpriced, leaving insurance providers exposed to net losses. Our estimates also capture the size premium where big banks are priced with higher deposit insurance than small banks. This result is particularly relevant to the current regulatory concerns on big banks that are too-big-to-fail. Above all, our approach provides a unifying framework for integrating risk-based deposit insurance with risk-based Basel capital requirements.     

控股股东所有权结构与关联方担保

本文以我国A股上市公司1998年到2003年的关联方担保数据为研究对象,检验了不同股权结构下上市公司关联方担保发生的概率及其对公司价值的影响。本文的结果显示,随着上市公司控股股东持股比例的增加,上市公司为关联方担保发生的概率呈现出先显著上升、其后不显著、最后显著下降的交化趋势。此外,我们还进一步发现为关联方担保对上市公司自身价值的影响显著为负,且这种负相关关系在控股股东持股比例偏低时显著加强,而在控股股东持股比例处于高位时显著降低。这些研究发现意味着监管关联方担保行为的重点应更多侧重于控股股东持股水平较低的上市公司。