Poverty Assessment in Degraded Rural Drylands in the Monte Desert,Argentina. An Evaluation Using GIS and Multi-criteria Decision Analysis

The work aims to contribute to the construction a local-scale poverty indicator, which contemplates multiple dimensions and allows for spatialization of socioeconomic data for a rural area in the Monte Desert. Given the evident and widely studied relationship between desertification processes and poverty, and aiming to contribute to integrating socioeconomic information to desertification assessment and monitoring, there arises the need for spatializing poverty by addressing its multiple dimensions, aspects poorly developed thus far. For this purpose, a data model was designed, which enabled integrating quantitative and qualitative information within the scope of geographic ?nformation systems (GIS) with multi-criteria decision analysis (MCDA), whereby it was possible to spatialize in detail the degree of poverty in the study area, laying the foundations for up-scaling the assessment to different scales. This work demonstrates the usefulness of GIS and MCDA as an instrument that enables progressing in new integral, interdisciplinary, multi-scale and multi-temporal approaches.     

Why reputation is not always beneficial: Tolerance and opportunism in business networks

Many researchers in economics as well as sociology have stressed the important role of business networks for cooperation, trust, and performance. This claim is based on solid theoretical arguments as well as empirical findings. However, neither theory nor the selective empirical results support the view that networks are always beneficial for economic transactions. This paper begins with an observation that for the purchase of IT products, network embeddedness leads to even more problems for the customer. In order to explain this effect, possible reasons for this phenomenon are discussed using theory as well as empirics. The most promising explanation for this special case is the effect of uncertainty and incomplete information ex post. In order to reduce this uncertainty, the buyer forms beliefs on the basis of the opinions existing in a shared network or group. However, if the network members have the same problem of uncertainty, suppliers have an incentive to reduce their performance because such behavior will not be detected and sanctioned. An analysis of the customer's tolerance to a supplier's behavior in business transactions yields support for this argument. Even if problems in a transaction are kept constant, customers give suppliers more reputational credit if they share a common network.     

On characterizing mixtures of some life distributions

Received: October 15, 1998; revised version: January 10, 2000     

A test of the Core,Bargaining Set,Kernel and Shapley models in n-person quota games with one weak player

n-person (n – 1)-quota-games where the quotas are positive for certain n – 1 (strong) players and negative for the remaining (weak) player, are discussed. Normative solutions predicted by the Core,the Kernel, the Bargaining Set, the Competitive Bargaining Set, and by the Shapley Value are presented and exemplified.Each of twelve groups of subjects participated in a four-person and a five-person (n – 1)-quota games with one weak player. The weak player was always excluded from the ratified coalition. The division of payoffs among the strong players was more egalitarian than the Kernel solution but less egalitarian than the Shapley value. The Core and the Bargaining Sets were fully supported for the two strongest players, but less supported for the other players. Analyses of the bargaining process confirmed a dynamic interpretation of the Bargaining Set Theory.This research was performed while the author was at the University of North Carolina. The research was partially supported by a PHS Research Grant No. MH-10006 from the National Institute of Mental Health. The author thanks Professor Amnon Rapoport for helpful advice in the design of this study.     

Linking leader inclusiveness to work unit performance: The importance of psychological safety and learning from failures

Despite burgeoning interest in how groups and organizations learn from failures, little is known about how leader behavior influences these learning processes. We analyzed longitudinal data collected at a large hospital and found that leader inclusiveness was positively associated with members' perceptions of psychological safety at Time 1, and that this relationship was stronger for members in low-performing units. Unit psychological safety climate appeared to facilitate learning from failures within the work unit (Time 2), which was positively associated with subsequent unit performance (Time 3).     

Referee Recognition

In most instances referees are indicated at the end of each paper which they referee. The help of the following individuals who have refereed papers for this journal is hereby acknowledged. Individuals who refereed papers which were handled during the period covered by Issues 1 through 4 of this volume are included in this list. The Editors wish to express their thanks to all of these.     

Forecast efficiency of systematically sampled time series

In this paper we consider the effect of the sampling interval in systematically sampled time series on the forecast efficiency. We find that for sufficientlv long sampled series the loss in forecasting accuracy by using the sampled instead of the original series is small     

Exploring turnover intentions among three professional groups of employees

Abstract

Although considerable research effort has been devoted to understanding work attitudes, behaviours and outcomes regarding turnover intentions, little has been done to explore it across different professions. This study takes a step in this direction and examines the effect of affective commitment, job satisfaction and job performance on turnover intentions across three professions. To this end, we surveyed three professional groups of employees and managers: financial officers and social workers employed in the public sector and lawyers employed in the private sector. The results of these three studies show that turnover intentions vary across these professions. Social workers exhibit lower turnover intentions than financial officers and lawyers, who tend to exhibit high turnover intentions. In addition, we found that job satisfaction and affective commitment are negatively associated with turnover intentions, while no significant relationship was found to exist between job performance and turnover intentions. The implications of this study suggest that both researchers and practitioners should take into consideration not only the organizational context, but also the occupational context while exploring the process of voluntary turnover.