A new look at factors influencing total quality management failure: work process control or workforce control?

By drawing on multi-case data, there is some evidence to suggest that total quality management (TQM) effectiveness can be viewed as a direct function of the controlling mechanisms that senior managers created prior to TQM implementation. More importantly, control tools of TQM were not used by non-managerial employees, with which they could reduce variability or achieve uniformity; rather, they were regarded as a weapon used by their managers against them.     

Ecological Tax Reforms and the Environment: A Note

There is widespread agreement on the ability of ecological tax reforms to improve the environmental quality. This paper, however, points out that a negative marginal impact on the environment cannot be ruled out for revenue-neutral ecological tax reforms in both first-best and second-best frameworks. Therefore, sufficient conditions are derived which ensure the improvement of the environmental quality.     

TESTING FOR MULTIPLE BUBBLES: LIMIT THEORY OF REAL‐TIME DETECTORS

This article provides the limit theory of real‐time dating algorithms for bubble detection that were suggested in Phillips, Wu, and Yu (PWY; International Economic Review 52 [2011], 201–26) and in a companion paper by the present authors (Phillips, Shi, and Yu, 2015; PSY; International Economic Review 56 [2015a], 1099–1134. Bubbles are modeled using mildly explosive bubble episodes that are embedded within longer periods where the data evolve as a stochastic trend, thereby capturing normal market behavior as well as exuberance and collapse. Both the PWY and PSY estimates rely on recursive right‐tailed unit root tests (each with a different recursive algorithm) that may be used in real time to locate the origination and collapse dates of bubbles. Under certain explicit conditions, the moving window detector of PSY is shown to be a consistent dating algorithm even in the presence of multiple bubbles. The other algorithms are consistent detectors for bubbles early in the sample and, under stronger conditions, for subsequent bubbles in some cases. These asymptotic results and accompanying simulations guide the practical implementation of the procedures. They indicate that the PSY moving window detector is more reliable than the PWY strategy, sequential application of the PWY procedure, and the CUSUM procedure.     

The Environment as a Stakeholder? A Fairness-Based Approach

Stakeholder theory is often unable to distinguish those individuals and groups that are stakeholders from those that are not. This problem of stakeholder identity has recently been addressed by linking stakeholder theory to a Rawlsian principle of fairness. To illustrate, the question of stakeholder status for the non-human environment is discussed. This essay criticizes a past attempt to ascribe stakeholder status to the non-human environment, which utilized a broad definition of the term "stakeholder." This paper then demonstrates how, despite the denial of stakeholder status, the environment is nonetheless accounted for on a fairness-based approach through legitimate organizational stakeholders. In addition, since stakeholder theory has never claimed to be a comprehensive ethical scheme, it is argued that sound reasons might exist for managers to consider their organization's impact on the environment that are not stakeholder-related.     

Rethinking an old empirical puzzle: econometric evidence on the forward discount anomaly

Using both semiparametric and parametric estimation methods, this paper corroborates earlier findings of fractionally integrated behaviour in the forward premium. Two new explanations are also proposed to help reconcile earlier conflicting empirical evidence on the time series properties of the forward premium. Traditional regression approaches used to test the forward rate unbiasedness hypothesis are then evaluated, including regression in levels, in returns (Fama's, 1984 , regression), and in error‐correction format. Interesting statistical and/or interpretive implications are found in all three cases. For example, the predictions of the appropriate nonstandard limit theory are consistent with many of the standard empirical results reported from Fama's regression, including the commonly occurring, yet puzzling negative correlations between spot returns and the forward premium. It is suggested that the principal failure of unbiasedness, may be due instead to the difference in persistence between these two series. Copyright © 2001 John Wiley & Sons, Ltd.     

PARTIAL HEDGING IN A STOCHASTIC VOLATILITY ENVIRONMENT

We consider the problem of partial hedging of derivative risk in a stochastic volatility environment. It is related to state-dependent utility maximization problems in classical economics. We derive the dual problem from the Legendre transform of the associated Bellman equation and interpret the optimal strategy as the perfect hedging strategy for a modified claim. Under the assumption that volatility is fast mean-reverting and using a singular perturbation analysis, we derive approximate value functions and strategies that are easy to implement and study. The analysis identifies the usual mean historical volatility and the harmonically averaged long-run volatility as important statistics for such optimization problems without further specification of a stochastic volatility model. The approximation can be improved by specifying a model and can be calibrated for the leverage effect from the implied volatility skew. We study the effectiveness of these strategies using simulated stock paths.