Linking environmental management practices and organizational citizenship behaviour for the environment: a social exchange perspective

This paper reports a field study on the relationship between environmental management practices and organizational citizenship behaviour for the environment via exchange process (i.e. perceived superior support, perceived organizational support and employee commitment). Results from a survey conducted with 407 employees from several organizations suggest that employee is more likely to make extra environmental efforts if he/she perceives that the organization supports his/her supervisor by granting him/her the decision-making latitude and necessary resources to engage in pro-environmental behaviour.     

Removing biases in forecasts of fishery status

A recent highly cited paper from this journal develops a model predicting maximum sustainable yield ( \(MSY\) ) of a fishery using the historical maximum catch ( \(MaxCatch\) ). The model is parameterized with a small sample of fisheries from the United States, and is subsequently applied globally to estimate the benefits of fishery recovery. That empirical relationship has been adopted for many subsequent high-profile analyses. Unfortunately, the analysis suffers from two important oversights: (1) because the model is non-linear, it suffers from “retransformation bias” and therefore the results significantly understate \(MSY\) and (2) the analysis is parameterized from of a very limited data set and so generalizability of the fitted empirical relationship between \(MSY\) and \(MaxCatch\) to global fisheries is questionable. Here, we rectify both oversights and provide an updated estimate of the relationship between \(MSY\) and \(MaxCatch\) .     

Handling uncertainties in vehicle routing problems through data preprocessing

This paper presents a global preprocessing methodology for handling uncertainties in operations management. Beyond theoretical considerations on solution feasibility, the methodology provides practitioners with a Monte Carlo simulation-based framework for effective risk management. The main strength of this methodology is being easily applicable to almost any decision problem. Application field of the paper is a real-life workforce management problem for which we propose several mixed integer formulations as well as dedicated solution algorithms. Extensive numerical tests on real-life instances assess the benefit from preprocessing schemes when performed as recommended by our approach, and thus prove its practical relevance.     

The antecedents and innovation effects of domestic and offshore R&D outsourcing: The contingent impact of cognitive distance and absorptive capacity

This paper analyzes differences in the antecedents and performance consequences of domestic and offshore R&D outsourcing. Offshore outsourcing is characterized by larger cognitive distance. We find that absorptive capacity from internal R&D allows for more offshore outsourcing and that offshore outsourcing leads to more positive innovation outcomes, especially product innovation.     

An international comparison of working times

Although national statistics on working life are difficult to compare, presented here is an overview of the trends observed in the principal industrialized countries. Pointing out first that the reduction in working time which has occurred over the past few decades, while common to all countries, has come about in different ways and at different rates, and has reached fairly unequal levels, the article emphasizes that the dominant trend today is towards the growing diversification of working time by sector, by company, and even by individual worker. This phenomenon of the individualization of working hours, doubtless attributable to new production constraints, clearly results from the more general diversification of types of work, itself concurrent with the atomization of lifestyles.     

The Demand for Insurance With an Upper Limit on Coverage

The demand for insurance is examined when the indemnity schedule is subject to an upper limit. The optimal contract is shown to display full insurance above a deductible up to the cap. Some results derived in the standard model with no upper limit on coverage turn out to be invalid; the optimal deductible of an actuarially fair policy is positive and insurance may be a normal good under decreasing absolute risk aversion. An increase in the upper limit would induce the policyholder with constant absolute risk aversion to reduce his or her optimal deductible and therefore this would increase the demand for insurance against small losses.     

Bias in consumer panel and store audit data

Sample survey data such as consumer panel data and store audit data may deviate remarkably from each other and from internal secondary data. These deviations are called data biases. In this study we use information regarding some brands of a fast moving nondurable consumer good to show that the data bias may lead to a large bias in parameter estimation, implying wrong indications for the use of marketing decision variables.A formal analysis explaining the coverage factor - measuring data bias - by a number of exogeneous variables can lead to a reduction in the case of consumer panel data.A similar reduction of the data bias in store audit data can be reached through the use of a reweighing procedure.     

Approximation and Calibration of Short-Term Implied Volatilities Under Jump-Diffusion Stochastic Volatility

We derive an asymptotic expansion formula for option impliedvolatility under a two-factor jump-diffusion stochastic volatilitymodel when time-to-maturity is small. We further propose a simplecalibration procedure of an arbitrary parametric model to short-termnear-the-money implied volatilities. An important advantageof our approximation is that it is free of the unobserved spotvolatility. Therefore, the model can be calibrated on optiondata pooled across different calendar dates to extract informationfrom the dynamics of the implied volatility smile. An exampleof calibration to a sample of S&P 500 option prices is provided.(JEL G12)