ROBUST ASSET ALLOCATION WITH BENCHMARKED OBJECTIVES

In this paper, we introduce a new approach for finding robust portfolios when there is model uncertainty. It differs from the usual worst‐case approach in that a (dynamic) portfolio is evaluated not only by its performance when there is an adversarial opponent (“nature”), but also by its performance relative to a stochastic benchmark. The benchmark corresponds to the wealth of a fictitious benchmark investor who invests optimally given knowledge of the model chosen by nature, so in this regard, our objective has the flavor of min–max regret. This relative performance approach has several important properties: (i) optimal portfolios seek to perform well over the entire range of models and not just the worst case, and hence are less pessimistic than those obtained from the usual worst‐case approach; (ii) the dynamic problem reduces to a convex static optimization problem under reasonable choices of the benchmark portfolio for important classes of models including ambiguous jump‐diffusions; and (iii) this static problem is dual to a Bayesian version of a single period asset allocation problem where the prior on the unknown parameters (for the dual problem) correspond to the Lagrange multipliers in this duality relationship. This dual static problem can be interpreted as a less pessimistic alternative to the single period worst‐case Markowitz problem. More generally, this duality suggests that learning and robustness are closely related when benchmarked objectives are used.     

Valuing traceability of imported beef in Korea: an experimental auction approach*

The major objective of this study is to estimate Korean food shoppers’ willingness to pay (WTP) for imported beef with traceability. We use an experimental elicitation method, the random nth price auction, to identify consumers’ valuation for traceable imported beef. We also analyse the effect of different types of information on these valuations. Results indicate that consumers are generally willing to pay a 39 per cent premium for the traceable imported beef over similar beef without traceability. Results also suggest that in contrast to the insignificant effect of positive information, negative and two‐sided information about traceability significantly reduces WTP.     

The influence of relative values of outside director stock options on firm strategic risk from a multiagent perspective

Prior work has examined the effects of absolute levels of outside director stock option grants on risk behavior without recognizing that relative stock option values could differentially affect risk taking. Drawing from the house money effect perspective, we extend this literature by examining how positive deviation from prior outside director option grants values influences firm strategic risk. Additionally we draw from the behavioral agency model and the power literature to develop a multiagent contingency framework suggesting the effect of positive director pay deviation depends on the incentives and power of CEOs reflected in CEO stock ownership and CEO duality, respectively. Our empirical results indicate positive pay deviation has a positive effect on firm risk taking while high ownership and duality independently and jointly weaken this base relationship. Copyright © 2013 John Wiley & Sons, Ltd.     

The Sophisticated and the Simple: the Profitability of Contrarian Strategies

A variety of variables have been used to form contrarian portfolios, ranging from relatively simple measures, like book‐to‐market, cash flow‐to‐price, earnings‐to‐price and past returns, to more sophisticated measures based on the Ohlson model and residual income model (RIM). This paper investigates whether: (i) contrarian strategies based on RIM perform better or worse than those based on the Ohlson model; (ii) contrarian strategies based on more sophisticated valuation models (e.g. Ohlson and RIM) perform much better than the relatively simpler ranking variables that have been used so extensively in the finance literature. Given that the RIM and Ohlson models require greater information inputs and technical know‐how, and make different implicit assumptions on future abnormal earnings, it is important to ascertain if they offer significantly greater contrarian profits to outweigh the increased costs that they entail. Indeed, our surprising finding is that simple cash flow‐to‐price measures appear to do almost as well as the more sophisticated alternatives. One would have expected the sophisticated models to significantly outperform the simple cash flow to price model for the reasons given by Penman (2007) .     

Classification of ownership patterns in Korean conglomerates

This study classifies the ownership structure of conglomerates considering the conglomerates' choices of pyramidal vs. horizontal structures and the magnitude of equity held by the controlling shareholders, namely the owner family. It proposes four patterns of ownership structure: (1) horizontal ownership with a high family stake, (2) horizontal ownership with a low family stake, (3) pyramidal ownership with a high family stake, and (4) pyramidal ownership with low family stake. Further, an attempt has been made to identify the series of economic variables contributing to the varying patterns of ownership structure in the 30 largest Korean conglomerates.     

Linking corporate sustainability and innovation in supply chain management – evidence of a Taiwan leading glass recycling company

This empirical study presents a combination of insights from corporate sustainability practices, supply chain management, and innovation literature, and a case study to discover new understandings on factors influencing firms to incorporate sustainable innovation initiatives into their supply chain practices. There is an apparent lack of literature in this field due to its modernity and evolving nature. Also, there is a lack of insights into how firms could translate sustainable innovation initiatives into practice. This study addresses this gap by examining a successful glass recycling company through the lenses of sustainable innovation context and the Global Reporting Initiative G3 Guideline framework. Primary data are collected through observations and in-depth interview before it is coded and analysed using nVivo. The findings show that sustainable innovation practices are mainly directed at improving the technological processes, resource sharing, and reduction of production cost among supply chain partners. A conceptual sustainable innovation framework is also proposed. This study contributes to sustainable innovation literature by providing insights into the evaluation of a firm's innovative sustainability efforts.     

Tendency to Infer Bribery and Corrupt Intent in Social and Business Situations: Comparing Chinese and Singaporean Employees

The present paper investigates the differences in ethicalperceptions between Chinese and Singaporean employees. Twocontrasting predictions based on socialization theory are testedusing 142 Chinese and 141 Singaporean employees as subjects. Results show that Chinese employees tend to infer a greaterdegree of unethical (bribery and corrupt) intent than Singaporeanemployees in 17 of the 25 ethical vignettes. The converse isfound in only two and no significant differences are found in therest of the vignettes. Implications for international managersand assignees and researchers in international business workingon or in China are discussed.