Labor unions and tax aggressiveness

We examine the impact of unionization on firms' tax aggressiveness. We find a negative association between firms' tax aggressiveness and union power and a decrease in tax aggressiveness after labor union election wins. This relation is consistent with labor unions influencing managers' in one, or both, of two ways: (1) constraining managers' ability to invest in tax aggressiveness through increased monitoring; or (2) decreasing returns to tax aggressiveness that arise from unions' rent seeking behavior. We also find preliminary evidence that the market expects these reductions around union elections and discounts firms that likely add shareholder value via aggressive tax strategies.     

Perception and attitude of Hong Kong hotel guest‐contact employees towards tourists from Mainland China

In recent years, the majority of arrivals to Hong Kong, which were once dominated by the Western and Japanese markets, were replaced by arrivals from Mainland China. The number of tourists from Mainland China has overtaken others to become the largest single market for the territory. With its increasing significance, providing quality service to these visitors becomes crucial to the success of the tourism industry and of the hotel industry in particular. Unfortunately, the satisfaction rating of the Mainland visitors on hotel services in Hong Kong is reported to be relatively low when compared to those given by other major markets. It is suspected that the perception and attitudes of the service staff may influence their behaviour in serving customers. As such, this study conducted a survey questionnaire with 228 guest‐contact employees of hotels in Hong Kong. Results indicate that most respondents have a fairly positive perception towards the Mainland tourists in relation to the economic and financial benefits that they bring to Hong Kong. However, a majority of the respondents express negative perception and attitudes towards these tourists in respect to their appearance, personalities and behaviour. Despite some respondents indicating that they exhibit different service behaviour towards visitors from Mainland China and other countries, no major significant differences in their perception and attitudes were found in this study. It is recommended that various types of cross‐cultural training, such as sensitivity training and role playing, would be helpful to guest‐contact employees in enhancing their ability to be more objective and more tolerant of other people's behaviour. This study concludes that hotel employees, especially those who work as front‐line staff, must remain aware of their subjective judgments when dealing with guests and be more accepting of others. Copyright © 2007 John Wiley & Sons, Ltd.     

Some Preliminary Findings on Hong Kong Business Cycles

This paper presents some preliminary quantitative findings on the characteristics of business cycles in Hong Kong. The recently developed "approximate bandpass filter" is used to extract the fluctuations at business cycle frequencies (8 to 32 quarters) of macroeconomic time series. Based on the filtered time series, the paper identifies the cyclical turning points, describes the pattern of output fluctuations, and examines the co‐movement of various macroeconomic variables.     

A generalized algebraic model for optimizing inventory decisions in a centralized or decentralized multi-stage multi-firm supply chain

First of all, a number of integrated models with/without lot streaming under the integer multiplier coordination mechanism is generalized by allowing lot streaming and three types of inspection for some/all upstream firms. Secondly, the optimal solutions to the three- and four-stage models are individually derived, both using the perfect squares method, which is a simple algebraic approach so that ordinary readers unfamiliar with differential calculus can easily understand how to obtain the optimal solution procedures. Thirdly, optimal expressions for some well-known models are deduced. Fourthly, expressions for sharing the coordination benefits based on Goyal’s (1976) scheme are derived, and a further sharing scheme is introduced. Fifthly, two numerical examples for illustrative purposes are presented. Finally, some future research works involving extension or modification of the generalized model are suggested.     

Constrained dynamic futures portfolios with stochastic basis

Annals of Finance - We study the problem of dynamically trading multiple futures contracts on different underlying assets subject to portfolio constraints. The spreads between futures and spot...     

Fatou property,representations, and extensions of law-invariant risk measures on general Orlicz spaces

We provide a variety of results for quasiconvex, law-invariant functionals defined on a general Orlicz space, which extend well-known results from the setting of bounded random variables. First, we show that Delbaen’s representation of convex functionals with the Fatou property, which fails in a general Orlicz space, can always be achieved under the assumption of law-invariance. Second, we identify the class of Orlicz spaces where the characterization of the Fatou property in terms of norm-lower semicontinuity by Jouini, Schachermayer and Touzi continues to hold. Third, we extend Kusuoka’s representation to a general Orlicz space. Finally, we prove a version of the extension result by Filipovi? and Svindland by replacing norm-lower semicontinuity with the (generally non-equivalent) Fatou property. Our results have natural applications to the theory of risk measures.     

Asset Price Spillover,Collateral and Crises: with an Application to Property Market Policy

This paper studies the impact of land supply elasticity and land use regulation. For sufficiently adverse shocks constrained entrepreneurs liquidate their assets for debt repayment. This effect can spillover to the residential property market. A crisis occurs when households are forced to default on their mortgages as well. While both converting costs and land use regulation tend to magnify the effect of adverse shock, the former generates an asymmetric effect between a positive and a negative shock on the land market, and the latter tends to raise the likelihood of a crisis, by raising the threshold value of liquidation.

Structural models of corporate bond pricing with maximum likelihood estimation

This paper empirically examines the proxy, volatility-restriction (VR) and maximum likelihood (ML) approaches to implementing structural corporate bond pricing models, and documents that ML estimation is the best among the three implementation methods. Empirical studies using either the proxy approach or the VR method conclude that barrier-independent models significantly underestimate corporate bond yields. Although barrier-dependent models tend to overestimate the yield on average, they generate a sizable degree of underestimation. The present paper shows that the proxy approach is an upwardly biased estimator of the corporate assets and makes the empirical framework work systematically against structural models of corporate bond pricing. The VR approach may generate inconsistent corporate bond prices or may fail to give a positive corporate bond price for some structural models. When the Merton, LS, BD and LT models are implemented with ML estimation, we find substantial improvement in their performances. Our empirical analysis shows that the LT model is very accurate for predicting short-term bond yields, whereas the LS and BD models are good predictors for medium-term and long-term bonds. The Merton model however significantly overestimates short-term bond yields and underestimates long-term bond yields. Unlike empirical studies in the past, the Merton model implemented with ML estimation does not consistently underestimate corporate bond yields.     

中国内地银行的外汇风险

本文实证研究使用资本市场法（Capital Market Approach）和14家中资上市银行的股价数据,发现银行规模和其外汇风险之间存在正相关关系。这可能反映了国内大型中资银行更多的外汇操作和交易头寸,以及因人民币汇率变动、对客户风险发生变化所带来的大量间接影响。虽然内地银行对国际市场的参与程度仍低于香港同业,但实证研究结果显示国有商业银行和股份制商业银行的平均外汇风险高于香港银行,而且大银行的外汇风险为负数的情况非常普遍,这意味着人民币升值将降低这些银行的股票价值,从而损害银行业表现。由于股价下跌一般反映违约风险上升,因此应密切监测人民币升值情况对内地银行违约风险可能发生的影响。