Individual account investment options and portfolio choice: Behavioral lessons from 401(k) plans

This paper examines how the menu of investment options made available to workers in defined contribution plans influences portfolio choice. Using unique panel data of 401(k) plans in the U.S., we present three principle findings. First, we show that the share of investment options in a particular asset class (i.e., company stock, equities, fixed income, and balanced funds) has a significant effect on aggregate participant portfolio allocations across these asset classes. Second, we document that the vast majority of the new funds added to 401(k) plans are high-cost actively-managed equity funds, as opposed to lower-cost equity index funds. Third, because the average share of assets invested in low-cost equity index funds declines with an increase in the number of options, average portfolio expenses increase and average portfolio performance is thus depressed. All of these findings are obtained from a panel data set, enabling us to control for heterogeneity in the investment preferences of workers across firms and across time.     

Fund Portfolio Holdings and Affiliated Analyst's Objectivity: Do Equity and Employment Relationship Matter?

The author investigates how the equity relationship between fund company and brokerage firm as well as employment relationship between analyst and brokerage firm affect affiliated fund stock portfolio holding and the affiliated analyst's objectivity. By using the specific data of such equity and employment relationship, the author finds that equity and employment relationship do matter in fund portfolio holdings and analyst objectivity. Specifically, analysts tend to release more optimal ratings on stocks that have been hold by the funds, and the funds tend to significantly reduce the stocks in their portfolio once the analysts have announced high ratings on the stocks. Moreover, the analysts in employment relationships with majority shareholders of funds and with a low reputation reveal worse objectivity. In addition, from the point of abnormal return, analysts in employment relationships with majority shareholders of funds and with a low reputation damage the interests of common investors.     

债转股问题之我见

债转股指的是商业银行成立的金融资产管理公司作为主体,将商业银行原有的不良债权转为金融资产管理公司对企业的股权。由此,原来的银行债权债务关系转变为金融资产管理公司对企业的持股关系,还本付息转为按股分红。     

Where Do Australians Invest?

In this article, we analyse the geography of Australia's international portfolio investment using the International Monetary Fund's Co‐ordinated Portfolio Investment Survey dataset. Preliminary results suggest that Australia's external holdings of equity and debt as a percentage of national income almost doubled between 1997 and 2001. However, Australia's international investment position as a percentage of national income is one of the lowest amongst the major OECD countries. In 2001 approximately two‐thirds of Australia's total investments were in the United States and the United Kingdom. By contrast Australia's trade share (exports plus imports as a percentage of Australia's total world trade) with these countries was approximately 20 per cent in the same year. The major determinants of Australia's geographical allocation of portfolio investment indicate a broad correspondence between stock market capitalisation of destination countries and the allocation of Australian financial investments but with some deviations from that baseline, where the deviations are correlated with Australian trade patterns.     

A possibilistic portfolio adjusting model with new added assets

In order to fit changes in financial markets, portfolio managers often need to revise an existing portfolio. This article analyzes the portfolio adjusting problem with new added assets. We propose a possibilistic portfolio adjusting model with transaction costs and bounded constraints on holdings of assets, which can be transformed into a linear programming problem. Both the lower bounds on holdings and the total investment constraints influence the optimal portfolio adjusting strategies. Furthermore, a numerical example of a portfolio adjusting problem is given to illustrate our proposed effective approaches. The numerical results show the case that investors do not need to invest total capital and to hold all assets in the portfolio for some required return levels.     

Riding the Bubble: Financial Market Crises in Twenty-Two OECD Countries

In the past decade, financial markets have been hit twice by crisis, followed each time by recession (i.e., Enron and the subprime mortgage crisis). I present three theories to explain the dynamics of share prices: rational expectations, behavioral finance, and an institution-oriented theory. Institutional investors are the dominant actors on financial markets. They hold the majority of the share capital in big companies. They tend to drive financial markets to a higher level of risk (volatility). The greater the percentage of the share capital held by institutional investors in a company, the higher the volatility (variance) of the share price. The results of my multilevel analysis confirm this hypothesis (a sample of 1,369 firms in twenty-two OECD countries). There are also significant differences among the OECD countries. Whereas both financial market crises originated in the United States, the country did not have the highest level of volatility in the period from 2000 to 2013.     

Factors affecting the stock price performance of share issued privatizations

Shareholders in many share issued privatizations (SIPs) have enjoyed substantial increases in the value of their investments. This study examines the factors that influence the long-run stock price performance of an international sample of SIPs, focusing on three-year buy and hold returns. After controlling for market-wide changes in stock prices, one finds that the relative size of the company has a negative effect on stock price performance, retained government ownership has a positive effect, the presence of a golden share has a negative effect, initial underpricing has a positive effect, and the timing of the privatization has no effect. Performance also depends on the industry and home country.     

Should emerging market investors buy commodities?

One reason that investors hold commodities is to receive diversification benefits. However, while an extensive set of existing studies demonstrate diversification benefits when investors hold international stocks or bonds, they are generally silent on the implications of holding commodities. Using an asset pricing framework, we investigate the benefits to investors from holding commodities, both individually and in portfolios. Generally, commodity and stock markets are integrated, although there are time-varying benefits to investors that are subject to sample period selection and investment horizon. We show that Asian investors receive positive risk adjusted returns in gold and rice markets but not in any of the other commodity markets investigated. The risk adjusted returns are time-varying: during the Asian financial crisis risk adjusted returns were negative – a penalty for investing in commodities – whereas during the global financial crisis the reverse was true and investors earned positive excess returns. The time-varying nature of the benefits that arise from diversification in commodities and their breakdown during periods of crisis, highlight the problems that investors may face when using commodities for long-term investment in addition to traditional holdings of stocks and bonds.     

Taxation and household portfolio composition: US evidence from the 1980s and 1990s

This paper explores the relationship between household marginal income tax rates, the set of financial assets that households own, and the portfolio shares accounted for by each of these assets. It analyzes data from the 1983, 1989, 1992, 1995, and 1998 Surveys of Consumer Finances and develops a new algorithm for imputing federal marginal tax rates to households in these surveys. The empirical findings suggest that marginal tax rates have important effects on asset allocation decisions. The probability that a household owns tax-advantaged assets, such as tax-exempt bonds or assets held in tax-deferred accounts, is positively related to its tax rate on ordinary income. In addition, the portfolio share invested in corporate stock, which is taxed less heavily than interest bearing assets, is increasing in the household’s ordinary income tax rate. Holdings of heavily taxed assets, such as interest-bearing accounts, decline as a share of wealth as a household’s marginal tax rate increases.     

中国证券投资基金羊群行为的实证研究

本文基于封闭式基金2000年6月～2003年12月完整的投资组合数据,采用LSV(1992)的方法以及Wermers(1999)修正的方法测度了中国股票市场证券投资基金羊群行为的程度.并采用分组比较以及回归分析的方法研究了基金的羊群行为与股票上市年龄,流通股市值,股票超常收益(同期、前期及后期)以及财务表现等特征之间的关系.     

Stock market crash of 2008: an empirical study of the deviation of share prices from company fundamentals

The aim of this study is to investigate quantitatively whether share prices deviated from company fundamentals in the stock market crash of 2008. For this purpose, we use a large database containing the balance sheets and share prices of 7796 worldwide companies for the period 2004–2013. We develop a panel regression model using three financial indicators – dividends per share, cash flow per share and book value per share – as explanatory variables for share price. We then estimate individual company fundamentals for each year by removing the time fixed effects from the two-way fixed effects model, which we identified as the best of the panel regression models.

Based on these results, we analyse the market anomaly quantitatively using the divergence rate – the rate of the deviation of share price from a company’s fundamentals. We find that share prices on average were overvalued in the period from 2005 to 2007 and were undervalued significantly in 2008, when the global financial crisis occurred. Share prices were equivalent to the fundamentals on average in the subsequent period. Our empirical results clearly demonstrate that the worldwide stock market fluctuated excessively in the time period before and just after the global financial crisis of 2008.     

年轻高管与企业股价崩盘风险：来自“代理冲突观”的证据*

在企业纷纷实施高管年轻化战略的背景下，本文从股价崩盘风险的视角分析和检验了年轻高管风险偏好的经济后果及其作用机理。本文基于“个体认知观”和“代理冲突观”展开理论推演，采用中国沪深A股非金融上市公司的数据，检验发现，年轻高管会显著加剧企业未来的股价崩盘风险，且这种影响主要存在于民营企业，在国有企业并不显著。进一步针对具体作用机制的检验发现，年轻高管在投资决策中选择了更多能迅速提升个人收益的风险性投资项目，但在不能迅速提升个人收益的风险性投资项目上与年长高管没有显著差异。同时，年轻高管对股价崩盘风险的加剧效应仅仅存在于高管在上市公司领取薪酬的样本企业，且更高的独立董事比例能显著抑制年轻高管的股价崩盘风险加剧效应。这表明，年轻高管个体认知层面的风险偏好被其追求个人私利最大化的代理冲突所扭曲，进而为年轻高管风险偏好的“代理冲突观”提供了实证证据。     

股指期货在风险管理中的应用

股指期货属于金融期货的一种,是以股票市场的股票价格指数为标的物的期货合约.在很多发达的股票市场乃至资本市场中,股指期货扮演着规避风险、套期保值的重要角色.在利用股指期货对股票组合进行套期保值时,可能面临各种风险,其中,基差风险是套期保值者面临的最主要风险.利用向量误差修正模型可以估计最小风险套期保值比,为投资者综合选择风险最小的套期保值策略提供了现实的、可操作的定量分析工具.     

年轻高管与企业股价崩盘风险：来自“代理冲突观”的证据*

在企业纷纷实施高管年轻化战略的背景下，本文从股价崩盘风险的视角分析和检验了年轻高管风险偏好的经济后果及其作用机理。本文基于“个体认知观”和“代理冲突观”展开理论推演，采用中国沪深A股非金融上市公司的数据，检验发现，年轻高管会显著加剧企业未来的股价崩盘风险，且这种影响主要存在于民营企业，在国有企业并不显著。进一步针对具体作用机制的检验发现，年轻高管在投资决策中选择了更多能迅速提升个人收益的风险性投资项目，但在不能迅速提升个人收益的风险性投资项目上与年长高管没有显著差异。同时，年轻高管对股价崩盘风险的加剧效应仅仅存在于高管在上市公司领取薪酬的样本企业，且更高的独立董事比例能显著抑制年轻高管的股价崩盘风险加剧效应。这表明，年轻高管个体认知层面的风险偏好被其追求个人私利最大化的代理冲突所扭曲，进而为年轻高管风险偏好的“代理冲突观”提供了实证证据。     

上市公司会计信息和股价变动相关性研究

文章以近三年的沪深能源类上市公司的财务数据为样本,将财务指标分为三类,运用皮尔逊相关性系数分析了上市公司财务指标与其股价的关系。结果发现：上市公司财务指标对股价的解释力呈减弱的趋势;每股收益和总资产报酬率是影响股价的主要因素;公司偿债能力与股价呈负相关,对股价变动不具有统计意义上的相关性;公司盈利能力是影响上市公司股价的主要因素。     

Portfolio Choice and Liquidity Constraints*

We study the infinite‐horizon model of household portfolio choice under liquidity constraints and revisit the portfolio specialization puzzle. We show why the puzzle is robust to several model variations, and argue that positive correlation between earnings shocks and stock returns is unlikely to provide an empirically plausible resolution. We find that relatively small fixed costs for stock market entry are sufficient to deter stockholding because, for a plausible range of parameter values, households can achieve desired consumption smoothing with small or zero holdings of stocks. Such costs could arise from informational considerations, sign‐up fees, and investor inertia.     

Co-movements of GCC emerging stock markets: New evidence from wavelet coherence analysis

This paper examines the short term and long term dependencies between stock market returns for the Gulf Cooperation Council (GCC) Countries (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates) during the period 2005–2010. Our empirical investigation is based on the wavelet squared coherence which allows us to assess the co-movement in both time-frequency spaces. Our results reveal frequent changes in the pattern of the co-movements especially after 2007 for all the selected GCC markets at relatively higher frequencies. We further note an increasing strength of dependence among the GCC stock markets during the last financial crisis signifying enhanced portfolio benefits for investors in the short term relative to the long term. On the financial side, we uncover that the strength of co-movement between GCC markets may impact the multi-country portfolio's value at risk (VaR) levels. These findings provide potential implications for portfolio managers operating in the GCC region who are invited to consider co-movement through both frequencies and time when designing their portfolios.     

Liquidity risk and bank portfolio management in a financial system without deposit insurance: Empirical evidence from prewar Japan

Using data from prewar Japan, this paper investigates the impact of a liquidity shock induced by depositors' behavior on bank portfolio management during financial crises in a system lacking deposit insurance. It is found that banks reacted to the liquidity shock sensitively through an increase in their cash holdings not by liquidating bank loans but by selling securities in the financial market. Moreover, banks exposed to local financial contagion adjusted the liquidity of their portfolio mainly by actively selling and buying their securities in the financial market. Finally, there is no evidence to conclude that the existence of the lender of last resort mitigated the liquidity constraints in bank portfolio adjustments.     

International diversification and industry-related labor income risk

Do equity markets help diversifying away industry-related labor income risk? This paper reconsiders the hedging role of stock markets by focusing on international equity diversification, rather than domestic asset allocation, and on industry wage, rather than individual labor income. We compare industry-based portfolio holdings to the one that is optimal for an investor endowed with the average home-country labor income. Our results resurrect the role of equities in hedging wage risk by uncovering remarkable heterogeneity across industries within each investing country. Our analysis also delivers insights concerning the role of occupational pension funds in designing optimal portfolios for their members.     

高管的风险态度与股权激励方式选择*

公司如何选择有效的股权激励方式一直是理论研究的重要话题。本文以2006—2016年中国A股实行股权激励的上市公司为研究对象,探究高管的风险态度差异对上市公司股权激励方式选择的影响。研究结果显示,高管的风险回避倾向越强,公司越倾向于授予风险较大的股票期权方式激励高管,以激发高管的风险承担意愿;高管的风险承担水平越高,公司则越倾向于采用风险较小的限制性股票期权方式进行激励,以削弱高管的过度风险追求倾向。进一步研究表明,当股权激励方式基于风险承担与高管的风险态度相匹配时,公司会有更好的业绩表现。本文的研究结论为激励契约设计提供了重要启示。