Effects of Diversity on Group Decision-Making Processes: The Moderating Role of Human Resource Management

Past empirical studies have demonstrated that differences among group members may have both positive and negative effects on decision-making processes. As direct models have failed to explain such intricate consequences, recent work has begun to propose models that are more complex by including mediating and moderating variables. In general, the literature has assumed that the extent to which differences between members benefit group decisions depends on certain conditions in the unit, especially its management. Drawing on a literature review, we find that the human resource management system can be one of these moderators. Using the estimates of a structural model, we discuss how certain choices in the definition of human resource policies can help the organization to improve decision-making processes in diverse groups.     

Indirect taxation and the welfare effects of altruism on the optimal fiscal policy

This paper analyzes the welfare effects of altruism on the optimal fiscal policy. The existence of positive bequests links present and future generations in the economy. We show that these altruistic links provide a new role for indirect taxation (consumption and estate taxes) with important welfare implications. We use three different altruistic approaches (warm-glow, dynastic, and family) to illustrate how the presence of bequests in the budget constraint of the donee gives the government the ability to use indirect taxation to mimic lump-sum taxes and to implement the first-best outcome in the long-run. This channel is not present in economies without altruism, such as the infinite-lived consumer economy or the overlapping generations economy, where long-run welfare is suboptimal and indirect taxation is irrelevant.     

Equity‐Liabilities Distinction: The case for Co‐operatives*

Members' shares in co‐operative entities are financial instruments with particular characteristics. In this paper we analyse the relation between firm leverage and systematic risk to provide empirical evidence on the economic substance of the member shares of members of cooperatives. We have studied the characteristics of members' shares in six European countries: France, Germany, Italy, Portugal, Spain and United Kingdom. We have also conducted tests on co‐operatives of these countries over the period 1993–2005. The study reports that in global terms the economic substance of the redeemable part of equity in co‐operatives is not the same across countries. Therefore if accounting standards setters want to develop a global standard for co‐operatives, a recommendation derived from this study would be to follow a probabilistic model to classify the redeemable part of co‐operative financial instruments, where the entity does not have the unconditional right to refuse the redemption, or to report this part as an intermediate item with characteristics of debt and equity.     

Assessing the broadband gap: From the penetration divide to the quality divide

Only some years ago the analysis of broadband diffusion was focused on who had an Internet connection and who did not. Now, the relevant questions are: how good is it? How fast? And, how fast is fast? Thus, the broadband gap can no longer be seen as a penetration divide. It is becoming more and more a quality and capacity divide, and therefore, a divide in the range of services people can access and use. By means of the Broadband Quality Score—an index that combines three key performance parameters for the quality of a connection (upload and download speeds, and latency)—Japan is found to be the only country of the 42 countries studied currently prepared to deliver the quality required for next-generation web applications over the next 3 to 5 years.     

Inventory service-level optimization within distribution network design problem

We propose a sequential heuristic approach to optimize inventory service levels in a two-stage supply chain. The proposed approach deals with service level and inventory decisions, simultaneously with network design decisions, and incorporating unfulfilled demand costs in a previous inventory-location model. A two-step formulation is considered, where the first step optimizes service level and the second step addresses location and inventory decisions. Each algorithm iteration solves an inventory-location model for a fixed service level, and then the service level is updated in order to reach an equilibrium condition between operating system and unfulfilled demand costs. The algorithm converged in three iterations for a set of sample instances, obtaining the same outcome in comparison with a more intuitive, exact, but more time-consuming search procedure.     

Sharecropping was sometimes efficient: sharecropping with compensation for improvements in European viticulture†

There is no consensus among specialists in agricultural contracts over whether the long‐term inefficiencies that classical economists attributed to sharecropping actually exist. This article maintains that they do exist and are partly caused by the fact that sharecropping is hardly compatible with the tenant being compensated for improvements, viticulture being the main historical exception. In line with recent contributions to the sharecropping literature, the article contends that the widely held belief among scholars of agricultural contracts that sharecropping was very frequent in Europe's vineyards is incorrect. However, it also provides evidence of an issue whose importance has gone largely unnoticed: prior to the twentieth century, many of the European vineyards worked by sharecroppers had been created by the sharecroppers themselves, through contracts which entitled them to compensation. Those contracts abounded while viticulture depended basically on two inputs, land and labour. When viticulture became a heavy consumer of capital, they were rapidly abandoned, but not in Catalonia, with a paradoxical result: the Catalan rabassa morta contract, which for centuries had made it possible to eliminate both the long‐ and short‐term inefficiencies of sharecropping, ended up becoming an obstacle to overcoming the short‐term inefficiencies. The article discusses why that happened.     

Cost-effectiveness of golimumab for the treatment of patients with moderate-to-severe ulcerative colitis in Quebec using a patient level state transition microsimulation

Objective: To conduct cost-effectiveness analyses comparing the addition of golimumab to the standard of care (SoC) for treatment of patients with moderate-to-severe ulcerative colitis (UC) who are refractory to conventional therapies in Quebec (Canada).

Methods: An individual patient state transition microsimulation model was developed to project health outcomes and costs over 10 years, using a payer perspective. The incremental benefit estimates for golimumab were driven by induction response and risk of a flare. Flare risks post-induction were derived for golimumab from the PURSUIT maintenance trial and extension study, while those for SoC were derived from the placebo arms of the Active Ulcerative Colitis Trials (ACT) 1 and 2. Other inputs were derived from multiple sources, including retrospective claims analyses and literature. Costs are reported in 2014 Canadian dollars. A 5% annual discount rate was applied to costs and quality-adjusted life-years (QALYs).

Results: Compared with SoC, golimumab was projected to increase the time spent in mild disease or remission states, decrease flare rates, and increase QALYs. These gains were achieved with higher direct medical costs. The incremental cost-effectiveness ratio for golimumab vs SoC was $63,487 per QALY.

Limitations: The long-term flare projections for SoC were based on the data available from the ACT 1 and 2 placebo arms, as data were not available from the PURSUIT maintenance or extension trial. Additionally, the study was limited to only SoC and golimumab, due to the availability of individual patient data to analyze.

Conclusion: This economic analysis concluded that treatment with golimumab is likely more cost-effective vs SoC when considering cost-effectiveness acceptability thresholds from $50,000–$100,000 per QALY.     

Are Temporary Help Agencies changing mobility patterns in the Spanish labour market?

This paper examines to what extent the intermediation of Temporary Help Agencies affects workers transitions into and out of employment in the Spanish youth labour market throughout the 1990s. The results obtained show that this type of intermediation presents a positive impact on the likelihood of leaving unemployment, although only for short-term unemployed individuals; at the same time, however, the employment hazard rate is substantially higher for agency workers. We also find that employment hazard rates were substantially affected in the 1990s by the extensive use of fixed-term contracts, although the 1997 labour market reform is found to slightly reduce this hazard rate. Finally, very young workers, women and those with low qualification levels are more likely to be affected by high labour turnover.JEL Classification: J24, J62This work has benefited from financial support by CICYT SEC2002-04471 and SEC 2003-C4028. We would like to express our gratitude to the Spanish Ministry of Labour for providing the database for this research, and to the seminar participants at IV Jornadas de Economía Laboral (Valencia), XXVI Simposio de Análisis Económico (Alicante), U. Santiago, U. Toulouse, U. Pompeu Fabra, the Workshop on Job Stability and Security in European Labor Markets (IZA, Bonn) and the XIV EALE Conference (Paris) for valuable suggestions. The comments from the editor and one referee were very useful to improve the final version of this paper. The usual disclaimer applies.     

International competition in Latin American telecommunications markets

Current market liberalization and reforms in Latin America are attracting a great deal of interest by global telecommunications companies and investors. This article focuses on recent liberalizations and reforms in the telecommunications markets of Chile, Argentina, Mexico, and Venezuela. The article reviews the winning bids for these markets 'and analyzes the strategic alliances of investors, global telecommunications companies, and local investors. The article concludes with an analysis of the experience to date in opening Latin American telecommunication markets to free competition and speculates on future developments in this sector. © 1993 John Wiley & Sons, Inc.