Human Capital,Organizational Orientations and Performance: Evidence From the Restaurant Industry

ABSTRACT

The study examines how human capital combines with and influences organizational orientations to determine performance. Specifically, this study investigates small restaurant businesses’ ability to effectively exploit intangible resources and capabilities, rather than tangible resources, in order to produce sustainable competitive advantage. A structured questionnaire was used to survey owners/managers of small independent restaurants in the United States. The results demonstrate that human capital, market orientation and entrepreneurial orientation serve as intangible resources and capabilities that can augment the competitive position of independent restaurants, and thereby improve performance. Human capital also combines with and influences the adoption of market orientation and subsequent performance.     

我国证券市场的规范与发展问题浅析

我国证券市场发展至今虽已取得不菲的成绩,但仍存在诸多问题。本文试图立足于我国证券市场现阶段发展的客观情况,对其所展现出的突出问题进行分析,并给出相应的建议,以期促进证券市场的健康快速发展。     

人民币离岸债券信用风险实证评估研究

近年来,人民币离岸债券市场发展迅速,其已成为发展最为成熟的人民币离岸子市场。目前,信用风险是人民币离岸债券面临的主要风险。本文以香港人民币离岸债券市场为例,运用KMV模型对人民币离岸债券信用风险进行了实证评估,观察和比较了不同主体发行的债券信用风险,分析了现阶段人民币离岸债券信用风险程度。     

The performance of venture capital investments: Do investors overreact?

Using a unique proprietary data set of over 5400 realized and unrealized venture capital investments between 1980 and 2005, we examine the impact of demand-related factors, e.g. entrepreneurial activity, as well as supply-related factors, i.e. money provided by VC investors, on the return of individual VC investments. This way, we are able to shed more light on the question whether volatile VC investment returns are rather driven by fundamental changes with regard to the number of attractive investment opportunities or by the overreaction by investors. We find that rising demand for VC, i.e. an increase in entrepreneurial activity, results initially in higher returns. However, our results also indicate that overreaction on the supply side can be observed, destroying deal-level results. Overfunding, specifically overinvesting seems to be a recurring characteristic of the VC industry. In fact, contra-cyclical investment strategies yield highest deal-level returns.     

Factors influencing corporate governance disclosures: evidence from Alternative Investment Market (AIM) companies in the UK

This study examines the relationship between company and ownership characteristics and the disclosure level of compliance with Quoted Companies Alliance (QCA) recommendations on corporate governance in Alternative Investment Market (AIM) companies. We report clear evidence that compliance increases with company size, board size, the proportion of independent non-executive directors, the presence of turnover revenue, and being formerly listed on the Main Market. However, we find that shell and highly geared AIM companies disclose relatively lower levels of corporate governance than recommended under QCA guidelines. Our findings suggest that market regulators should review the potential impact of the quality of corporate governance in these companies on the future vibrancy of AIM. We find no evidence that ownership structure or the type of Nominated Advisor is related to disclosure of compliance with QCA guidelines. Overall, in a lightly regulated environment such as the AIM market, it seems that companies will ultimately pursue a cost–benefit strategy in voluntarily complying with good corporate governance practice.     

The next tick on Nasdaq

The Nasdaq stock market provides information about buying and selling interest in its limit order book. Using a vector autoregressive model of trades and returns, I assess the effect of the entire order book on the next tick. I also determine the influence of individual market makers and electronic networks and find evidence that the identity of market participants can be useful information. Finally, I produce a set of dynamic market price responses to buy and sell orders, and I find that these estimates vary with standard measures of liquidity.     

A profitable trading and risk management strategy despite transaction costs

We present a new profitable trading and risk management strategy with transaction cost for an adaptive equally weighted portfolio. Moreover, we implement a rule-based expert system for the daily financial decision-making process using the power of spectral analysis. We use several key components such as principal component analysis, partitioning, memory in stock markets, percentile for relative standing, the first four normalized central moments, learning algorithm, and switching among several investment positions consisting of short stock market, long stock market and money market with real risk-free rates. We find that it is possible to beat the proxy for the equity market without short selling for 168 S&P 500-listed stocks during the 1998–2008 period and 213 Russell 2000-listed stocks during the 1995–2007 period. Our Monte Carlo simulation for both the various set of stocks and the interval of time confirms our findings.     

Estimating correlation and covariance matrices by weighting of market similarity

We discuss a weighted estimation of correlation and covariance matrices from historical financial data. To this end, we introduce a weighting scheme that accounts for the similarity of previous market conditions to the present situation. The resulting estimators are less biased and show lower variance than either unweighted or exponentially weighted estimators. The weighting scheme is based on a similarity measure that compares the current correlation structure of the market to the structures at past times. Similarity is then measured by the matrix 2-norm of the difference of probe correlation matrices estimated for two different points in time. The method is validated in a simulation study and tested empirically in the context of mean–variance portfolio optimization. In the latter case we find an enhanced realized portfolio return as well as a reduced portfolio risk compared with alternative approaches based on different strategies and estimators.     

Applying hedging strategies to estimate model risk and provision calculation

We present an empirical study of the intertwined behaviour of members in a financial market. Exploiting a database where the broker that initiates an order book event can be identified, we decompose the correlation and response functions into contributions coming from different market participants and study how their behaviour is interconnected. We find evidence for the following. (1) Brokers are very heterogeneous in liquidity provision—some appear to be primarily liquidity providers while others are primarily liquidity takers. (2) The behaviour of brokers is strongly conditioned on the actions of other brokers. In contrast, brokers are only weakly influenced by the impact of their own previous orders. (3) The total impact of market orders is the result of a subtle compensation between the same broker pushing the price in one direction and the liquidity provision of other brokers pushing it in the opposite direction. These results enforce the picture of market dynamics being the result of the competition between heterogeneous participants, interacting to form a complex market ecology.     

The law of one accounting variable

The ‘law of one accounting variable’ is defined in this paper as an extension of ‘the law of one price’. It says roughly that if the future payoffs of two assets are the same (in every state of the world), then the accounting variable of the assets are approximately the same. The paper derives a condition under which this law holds and shows that when the law holds for some accounting variables, these variables can replace betas in the multibeta representation of asset returns, provided some admissibility conditions are satisfied.