盈余管理与所得税支付：基于会计利润与应税所得之间差异的研究

公司在进行盈余管理时,往往面临着财务报告成本与税务成本的权衡。为了摆脱该困境,公司有动机通过操纵非应税项目损益,以规避盈余管理的所得税成本。本文通过考察会计利润与应税所得差异(Book-Tax Differences)和盈余管理之间的关系,证实了该假设。我们的研究表明,上市公司盈余管理幅度越大,则会计利润与应税所得差异(本文定义为非应税项目损益)也越高,即上市公司通过操纵非应税项目损益,以规避盈余管理的税负成本。我们的研究进一步发现,上市公司通过非应税项目损益规避盈余管理税负成本的行为主要发生在高税率组别,而享受所得税优惠的公司则没有呈现出该特征。另外,我们的研究还发现,上市公司主要通过操纵长期应计项目规避所得税负。但我们的研究也表明,上市公司通过非应税项目损益规避的盈余管理税负成本较为有限,平均每1元操纵利润中,只有1．8分的操纵利润可以规避所得税成本,这或许表明进行盈余管理的公司为了避免引起资本市场或税务当局的怀疑,而为其大部分利润操纵支付了所得税成本。此外,本文研究还发现,高税率公司存在强烈的通过非应税掼益项目规避所得税的动机。我们的样本公司中,平均而言,所得税税率每增加1个百分点,操纵非应税项目损益占资产的比例将增加0．029％;适用33％税率的公司与适用15％优惠税率的公司相比,为此所规避的所得税成本平均高达330万元。     

强制性制度变迁与盈余稳健性——来自深沪证券市场的经验证据

本文以1995—2004年深沪两市全部A股上市公司为研究样本,考察会计制度的强制性变迁是否显著提高我国上市公司会计盈余的稳健性。研究结果显示,1995—1997期间上市公司会计盈余不具有稳健性,意在提高上市公司稳健性水平的《股份有限公司会计制度》的实施并未实质性增强1998—2000期间会计盈余的稳健性水平,而更为积极贯彻国际通行的稳健会计政策的《企业会计制度》的实施则显著提升了2001-2004期间我国上市公司会计盈余的稳健性。然而,单独对盈利公司所作的进一步检验却表明,2001—2004期间会计盈余显示的稳健性特征主要是由于亏损公司"洗大澡"造成的。研究结果表明,单纯转变会计准则并不能改善会计信息的质量,除非附以相配套的强有力的法律和执行机制。     

资产负债项目可靠性、盈余持续性及其市场反应

本文将资产负债项目的可靠性和盈余的持续性相联系,并探讨资本市场能否解读这种联系。首先,理论分析表明可靠性更差的资产负债项目导致盈余的持续性更低。其次对应计项目进行分类并评价其可靠性。最后,证据表明,更不可靠的应计项目导致盈余的持续性更低,并且资本市场没有充分预期到这种联系从而作出错误反应。这些结果说明,在财务报表中确认可靠性更低的应计项目会导致更大的成本,相关性的获得不应以牺牲可靠性为代价。     

Does the Stock Market Overreact to Corporate Earnings Information?

This paper tests whether the stock market overreacts to extreme earnings, by examining firms' stock returns over the 36 months subsequent to extreme earnings years. While the poorest earners do outperform the best earners, the poorest earners are also significantly smaller than the best earners. When poor earners are matched with good earners of equal size, there is little evidence of differential performance. This suggests that size, and not investor overreaction to earnings, is responsible for the “overreaction” phenomenon, the tendency for prior period losers to outperform prior period winners in the subsequent period.     

The Differences Between Stock Splits and Stock Dividends: Evidence on the Retained Earnings Hypothesis

Abstract:  This paper investigates stock dividends and stock splits on the Copenhagen Stock Exchange (CSE), which is of interest because several of the more recent explanations for a stock market reaction can be ruled out. The main findings are that the announcement effect of stock dividends as well as stock splits is closely related to changes in a firm's payout policy, but that the relationship differs for the two types of events. A stock dividend implies an increase in nominal share capital and hence a decrease in retained earnings. Firms announcing stock dividends finance growth entirely by debt (explaining the need for an increase in nominal share capital) and retained earnings. Basically all firms announcing a stock dividend with a split factor of less than two can also afford to increase their total cash dividends permanently, at least proportionally to the increase in share capital, leading to a significant announcement effect of 4.23%. Firms announcing a stock dividend with a split factor of two or more also increase total cash dividends permanently, but less than proportionally to the increase in share capital. This leads to an insignificant announcement effect of 0.08%. These findings support a retained earnings/signaling hypothesis. For stock splits, no separate announcement effect was found when a firm's payout policy was controlled for. This lends support to the idea that a stock split per se is a cosmetic event on the CSE and is also consistent with the fact that making a stock split on the CSE is virtually cost free.     

Information Diffusion and Overreaction: Evidence from the Chinese Stock Market

This paper empirically examines the relation between overreaction and the speed of information diffusion in the Chinese stock market. Industry-adjusted firm size and residual analyst coverage are used to proxy the speed of information diffusion. We document strong evidence that the profitability of a monthly contrarian strategy decreases with industry-adjusted firm size or residual analyst coverage. Moreover, the profitability of contrarian strategies survives for a longer horizon for stocks with slower information diffusion than for those with faster information diffusion. This result holds true even if risk, bid-ask spread, lead-lag effect, inventory costs, and limits to arbitrage are properly accounted for. Our findings suggest that information environment and information diffusion determine the extent of overreaction.     

Dividend Policies and Price-Volume Reactions to Cash Dividends on the Stock Market: Evidence from the Istanbul Stock Exchange

This study examines the effects of cash dividend payments on stock returns and trading volumes in the stock market. It also investigates whether there is any difference in the investment behavior of investors with respect to the dividend pay out ratio and size in the Istanbul Stock Exchange (ISE)from 1995 to 2003. Prices start to rise a few sessions before cash dividend payments, and on the ex-dividend day, they fall less than do dividend payments, finally decreasing in the sessions following the payment. Trading volume shows a considerable upward shift before the payment date and, interestingly, is stable after Thus, cash dividends influence prices and trading volumes in different ways before, at, and after payment, providing some profitable active trading strategy opportunities around the ex-dividend day. The findings support price-volume reaction discussions on the divident payment date and the significant effect of cash dividends on the stock market.     

Stock Market Reactions to SFAS No. 96: Evidence from Early Bank Adopters

Statement of Financial Accounting Standards (SFAS) No. 96, “Accounting for Income Taxes,” issued by the Financial Accounting Standards Board (FASB) in December 1987 changed accounting for income tax recognition and accrual. The original deadline for implementation of SFAS No. 96 was December 15, 1988, and earlier adoption was encouraged. This study examines empirically the stock price impact of four pertinent announcement dates regarding SFAS No. 96 for 19 banks that adopted the statement in late 1987 and early 1988. Our results suggest that these early bank adopters have different characteristics from other banks that cause them to benefit from the changes in accounting for deferred taxes and explain their voluntary adoption of the standard.     

股权结构和信息非对称:中国股市的经验证据

本文首先采用1分钟的高频数据和MRR(Madhavan,Richardson＆Roomans,1997)模型测算出沪深股市的信息非对称程度;然后引入上市公司的股权结构因素,实证分析了股权结构对市场信息非对称程度的影响.研究结果表明:内部人持股比例、流通股比例、股价及成交量与信息非对称程度呈正相关关系;机构持股比例、股权集中度、管理层持股比例及股权转让比例与信息非对称程度呈负相关关系.文章在实证研究的基础上,提出了相关政策建议.     

上市公司IPO与分类转移盈余管理——来自我国A股市场的经验证据

上市公司在IPO过程中往往针对净利润实施盈余管理,分类转移是在不改变净利润的情况下通过核心费用的分类转移、虚增核心盈余的一种盈余管理方式。上市公司在IPO过程中会实施分类转移盈余管理吗?本文以2007-2016年我国A股市场的IPO公司为样本,发现:(1)上市公司在IPO前三年存在显著的分类转移,即通过把核心费用分类转移至营业外支出以虚增核心盈余;在IPO后三年,不存在这一行为;(2)在IPO前三年,上市公司主要通过将营业成本而非期间费用转移至营业外支出的方式虚增核心盈余,制造业企业更为明显。进一步研究发现,上市公司IPO过程中的分类转移行为应是权衡多种动机的结果,四大审计能够在一定程度上抑制这一行为。     

Firms' Off-Balance Sheet and Hybrid Debt Financing: Evidence from Their Book-Tax Reporting Differences

We match large U.S. corporations' tax returns during 1989–2001 to their financial statements to construct a firm‐level proxy of firms' use of off‐balance sheet and hybrid debt financing. We find that firms with less favorable prior‐period Standard & Poor's (S&P) bond ratings or higher leverage ratios in comparison to their industry report greater amounts of interest expense on their tax returns than to investors and creditors on their financial statements. These between‐firm results are consistent with credit‐constrained firms using more structured financing arrangements. Our within‐firm tests also suggest that firms use more structured financing arrangements when they enter into contractual loan agreements that provide incentives to manage debt ratings. Specifically, we find that after controlling for S&P bond rating and industry‐adjusted leverage, our sample firms report greater amounts of interest expenses for tax than for financial statement purposes when they enter into performance pricing contracts that use senior debt rating covenants to set interest rates. Furthermore, we find that the greatest book‐tax reporting changes occur when firms become closer to violating these debt rating covenants. These latter findings are consistent with firms' contractual debt covenants influencing their use of off‐balance sheet and hybrid debt financing.     

股指期权对股指期货的促进作用:来自韩国的证据

本文结合解析韩国KOSPI200期权对于KOSPI200期货市场的影响,论证股指期权市场对股指期货市场在提高流动性和培育机构投资者方面的显著作用。借鉴韩国股指衍生品市场发展经验,笔者认为在沪深300股指期货平稳运行之后,要选择时机及时推出股指期权,这样可以保证良好的流动性。为此,应当加快制定股指衍生品市场体系的发展战略。     

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.     

货币政策与股票市场流动性风险——来自中国股票市场的经验证据

本文首先应用模型刻划了我国股票市场流动性变化特征,并以非预期流动性度量流动性风险:其次从货币供应量和利率两个方面,应用VAR模型分析了我国货币政策与流动性风险的关系.研究发现M2的变化对流动性风险影响最大,准M2、M1的变化次之,M0、准M1的变化最小;流动性风险对准Ml变化影响最大,对M1、M2变化次之,对准M2和M0变化几乎没有影响.利率与流动性风险相互影响很小.     

会计稳健性与投资效率——来自中国证券市场的经验证据

会计稳健性是财务报告的一项重要特征,而投资效率则是企业生存和发展至关重要的制约因素,稳健的会计政策对企业投资效率的影响值得深入探讨.通过实证研究发现,会计稳健性越好的企业,在投资机会下降时,会更及时地削减投资,即投资效率更高.     

Daily Stock Trading by Investor Type and Information Asymmetry: Evidence from the Korean Market

We examine the influence of trading by heterogeneous investors on information asymmetry in the Korean stock market, which includes domestic and foreign institutional investors and individual investors. In particular, we examine the relationship between the daily trading volume and the level of information asymmetry reflected in the stock price. The results reveal that high-volume daily trading by domestic institutional and individual investors increases the degree of information asymmetry in the short term, but is more evident for individual investors. Foreign institutional investors tend to mitigate the information asymmetry. Finally, our findings are robust to an alternative measure of investor trading.     

Using Available-for-sale Securities to Smooth Earnings: Evidence from China

Utilizing a large sample of non-financial public firms in China from 2009 to 2016, we find robust evidence that non-financial firms smooth their earnings through realized gains and losses on available-for-sale (AFS) securities. This effect is more pronounced for firms with weaker internal and external corporate governance. Firms with an incentive to manipulate up their earnings are also less likely to smooth earnings through AFS securities. Moreover, firms with more accrual earnings management or real earnings management tend to smooth earnings to a greater extent through AFS securities. Firms smooth earnings only when their net income is positive or when net income is negative and the gains from AFS securities are large enough to offset negative earnings. We do not find supporting evidence for engaging in big bath earnings management through the realization of losses on AFS securities. These findings suggest that gains and losses on AFS securities allow non-financial firms to actively smooth their earnings. Last, the accounting standards amendments in 2017 that essentially disable earnings smoothing through AFS securities increase price efficiency.