The impact of gender composition on team performance and decision-making: Evidence from the field

We investigate whether the gender composition of teams affect theireconomic performance. We study a large business game, played in groups ofthree, where each group takes the role of a general manager. There are twoparallel competitions, one involving undergraduates and the other involvingMBAs. Our analysis shows that teams formed by three women aresignificantly outperformed by any other gender combination, both at theundergraduate and MBA levels. Looking across the performancedistribution, we find that for undergraduates, three women teams areoutperformed throughout, but by as much as 10pp at the bottom and by only1pp at the top. For MBAs, at the top, the best performing group is two menand one woman. The differences in performance are explained bydifferences in decision-making. We observe that three women teams are lessaggressive in their pricing strategies, invest less in R&D, and invest more insocial sustainability initiatives, than any other gender combination teams.Finally, we find support for the hypothesis that it is poor work dynamicsamong the three women teams that drives the results.

How competition controls team production: The case of fishing firms

Under team production, those who monitor individual productivity areusually the only ones compensated with a residual that varies withthe performance of the team. This pattern is efficient, as is shownby the prevalence of conventional firms, except for small teams andwhen specialized monitoring is ineffective. Profit sharing in repeatedteam production induces all team members to take disciplinary actionagainst underperformers through switching and separation decisions,however. Such action provides effective self-enforcemnt when themarkets for team members are competitive, even for large teams usingspecialized monitoring. The traditional share system of fishing firmsshows that for this competition to provide powerful enough incentivesthe costs of switching teams and measuring team productivity must bebellow. Risk allocation may constrain the organizational designdefined by the use of a share system. It does not account for itsexistence, however.

Chaotic dynamics and team effectiveness: evidence from professional basketball

Considering teams as complex adaptive systems (CAS) this study deals with changes in team effectiveness over time in a specific context: professional basketball. The sample comprised 23 basketball teams whose outcomes were analysed over a 12-year period according to two objective measures. The results reveal that all the teams showed chaotic dynamics, one of the key characteristics of CAS. A relationship was also found between teams showing low-dimensional chaotic dynamics and better outcomes, supporting the idea of healthy variability in organizational behaviour. The stability of the squad was likewise found to influence team outcomes, although it was not associated with the chaotic dynamics in team effectiveness. It is concluded that studying teams as CAS enables fluctuations in team effectiveness to be explained, and that the techniques derived from nonlinear dynamical systems, developed specifically for the study of CAS, are useful for this purpose.

The Biblioteca de Catalunya: working for the present and the future

The Biblioteca de Catalunya (BC) was created in 1907 by the Institut d’Estudis Catalans (IEC). In 1914 the Mancomunitat de Catalunya gave the library its condition of cultural and public service, open to researchers and scholars. The library underwent several changes as a consequence of political events, along the most of 20th century. In 1981 it was recognized by law as national library and it recovered its foundational aim of gathering, preserving and disseminating the bibliographical output of Catalonia and the production related with the Catalan linguistic field. As the proud host of ANADP2, the BC wants to show the attendees to the conference how, since 2004, has positioned itself to face the challenge of the new informational and technological paradigm. The library strategy for oncoming years includes giving open and free access online to the digitization of many of his collections through the portals MDC (Digital Memory of Catalonia), ARCA (Old Catalan Serials Archive) and Google Books project; the creation of the Web Archive of Catalonia and, as the last step in the consolidation of its policy, a high-security preserving repository named COFRE, based on the international guidelines and initiatives and the experience of the BC itself.

Gender inequalities in occupational health related to the unequal distribution of working and employment conditions: a systematic review

Gender inequalities exist in work life, but little is known about their presence in relation to factors examined in occupation health settings. The aim of this study was to identify and summarize the working and employment conditions described as determinants of gender inequalities in occupational health in studies related to occupational health published between 1999 and 2010. A systematic literature review was undertaken of studies available in MEDLINE, EMBASE, Sociological Abstracts, LILACS, EconLit and CINAHL between 1999 and 2010. Epidemiologic studies were selected by applying a set of inclusion criteria to the title, abstract, and complete text. The quality of the studies was also assessed. Selected studies were qualitatively analysed, resulting in a compilation of all differences between women and men in the prevalence of exposure to working and employment conditions and work-related health problems as outcomes. Most of the 30 studies included were conducted in Europe (n=19) and had a cross-sectional design (n=24). The most common topic analysed was related to the exposure to work-related psychosocial hazards (n=8). Employed women had more job insecurity, lower control, worse contractual working conditions and poorer self-perceived physical and mental health than men did. Conversely, employed men had a higher degree of physically demanding work, lower support, higher levels of effort-reward imbalance, higher job status, were more exposed to noise and worked longer hours than women did. This systematic review has identified a set of working and employment conditions as determinants of gender inequalities in occupational health from the occupational health literature. These results may be useful to policy makers seeking to reduce gender inequalities in occupational health, and to researchers wishing to analyse these determinants in greater depth.

Working paper 1: "Una revolución original: Revueltas cívicas y revoluciones democráticas en los países árabes, 2009-2011".

Primer análisis general del tema que ocupa la atención de un Seminario de Investigación "ad hoc" (Facultad de Economía y Empresa, vinculada al "Observatori de aprenentatge i investigació sobre el canvi i el conflicte socials", PID-UB aprobado en junio de 2010, investigadora principal: María Trinidad Bretones) sobre los intentos de cambio de régimen y de democratización de 2009 en Irán y de enero a mayo de 2011 en los países árabes del norte de África. Es la versión inicial y provisional que será ampliada y mejorada sucesivamente por medio de otros working paper.

Chaotic dynamics and team effectiveness: evidence from professional basketball

Considering teams as complex adaptive systems (CAS) this study deals with changes in team effectiveness over time in a specific context: professional basketball. The sample comprised 23 basketball teams whose outcomes were analysed over a 12-year period according to two objective measures. The results reveal that all the teams showed chaotic dynamics, one of the key characteristics of CAS. A relationship was also found between teams showing low-dimensional chaotic dynamics and better outcomes, supporting the idea of healthy variability in organizational behaviour. The stability of the squad was likewise found to influence team outcomes, although it was not associated with the chaotic dynamics in team effectiveness. It is concluded that studying teams as CAS enables fluctuations in team effectiveness to be explained, and that the techniques derived from nonlinear dynamical systems, developed specifically for the study of CAS, are useful for this purpose.

Using MILP to plan holidays and working hours under an annualised hours agreement

Annualising work hours (AH) is a means of achievement flexibility in the use of human resources to face the seasonal nature of demand. In Corominas et al. (1) two MILP models are used to solve the problem of planning staff working hours with annual horizon. The costs due to overtime and to the employment of temporary workers are minimised, and the distribution of working time over the course of the year for each worker and the distribution of working time provided by temporary workers are regularised.In the aforementioned paper, the following is assumed: (i) the holiday weeks are fixed a priori and (ii) the workers are from different categories who are able to perform specific type of task have se same efficiency; moreover, the values of the binary variables (and others) in the second model are fixed to those in the first model (thus, in the second model these will intervene as constants and not as variables, resulting in an LP model).In the present paper, these assumptions are relaxed and a more general problem is solved. The computational experiment leads to the conclusion that MILP is a technique suited to dealing with the problem.

Actividades de aprendizaje y evaluación a través del Campus Virtual. Experiencia en Fisiología y Fisiopatología I del Grado de Farmacia

[spa] Nuestro objetivo consiste en fomentar, entre alumnos internos del Departamento de Fisiología, el autoaprendizaje, el trabajo autónomo y en equipo, espíritu crítico y habilidad para buscar y analizar información. A la vez se pretende iniciar a estos alumnos en los sistemas de transferencia de resultados de la investigación básica a la investigación aplicada. Para ello a los alumnos se les proporciona materiales que contienen información sobre las materias objeto de aprendizaje y enlaces a diferentes sitios webs de interés relacionados con el tema. En ellos se promueve la exposición de trabajos y la participación en jornadas especializadas. El uso de estos materiales bajo supervisión del profesorado, ha permitido la mejora del conocimiento en Fisiología y la creación de equipos especializados en diferentes aspectos de la Fisiología. Además, la transferencia de información entre alumnos, ha propiciado que puedan adquirir una visión clara y amplia sobre qué es un trabajo de investigación básica o un trabajo de investigación aplicada, así como la importancia del trabajo en equipo, lo que ha posibilitado que pudieran diseñar pequeños experimentos y estudiar su aplicabilidad. Al final del periodo de formación, los alumnos demostraron haber adquirido las competencias genéricas CG1, CG3, CG5, CG6, CG11, CG13 y CG15 incluidas en la ficha Verifica para el Grado en Farmacia, así como las competencias específicas para el módulo 5 (Medicina y Farmacología) CEM5.8, CEM5.9 y CEM5.11, concluyendo así que la aplicación de métodos de enseñanza basados en el autoaprendizaje (bajo supervisión de equipos docentes) constituye una excelente herramienta para la promoción de la adquisición de competencias generales y específicas en el Grado en Farmacia.

Birth Weight, Working Memory and Epigenetic Signatures in IGF2 and Related Genes: A MZ Twin Study.

Neurodevelopmental disruptions caused by obstetric complications play a role in the etiology of several phenotypes associated with neuropsychiatric diseases and cognitive dysfunctions. Importantly, it has been noticed that epigenetic processes occurring early in life may mediate these associations. Here, DNA methylation signatures at IGF2 (insulin-like growth factor 2) and IGF2BP1-3 (IGF2-binding proteins 1-3) were examined in a sample consisting of 34 adult monozygotic (MZ) twins informative for obstetric complications and cognitive performance. Multivariate linear regression analysis of twin data was implemented to test for associations between methylation levels and both birth weight (BW) and adult working memory (WM) performance. Familial and unique environmental factors underlying these potential relationships were evaluated. A link was detected between DNA methylation levels of two CpG sites in the IGF2BP1 gene and both BW and adult WM performance. The BW-IGF2BP1 methylation association seemed due to non-shared environmental factors influencing BW, whereas the WM-IGF2BP1 methylation relationship seemed mediated by both genes and environment. Our data is in agreement with previous evidence indicating that DNA methylation status may be related to prenatal stress and later neurocognitive phenotypes. While former reports independently detected associations between DNA methylation and either BW or WM, current results suggest that these relationships are not confounded by each other.

Influència de la motivació en equips de futbol masculins de categoria juvenil

El present projecte exposa un estudi sobre la motivació, un dels factors psicològics que intervenen en l’àmbit esportiu, concretament en el futbol. Es fa èmfasi en els tipus de motivació, les teories, els factors que hi intervenen, les tècniques que s’utilitzen i també el paper que desenvolupa l’entrenador en aquest àmbit. La investigació es situa en tres equips de futbol de categoria juvenil masculí, en la qual es pretén conèixer i analitzar com influeix en els jugadors la motivació i la seva participació en aquest esport. Es conclou sobre la necessitat de seguir treballant la motivació en cada equip per tal d’afavorir una major implicació dels jugadors i un clima més òptim de treball i sobre la importància de noves actuacions i tècniques que tinguin en compte la motivació a dos nivells: individual i col·lectiu.

Exploring the link between flexible working and organizational performance

The expansion of flexible work experienced since the 1980s in developed economies is consistent with a more generic trend towards organizational flexibility, which many authors see as essential in order to compete in the dynamic global environment (Volberda, 1998). From this point of view, the changing demands of the environment have forced organizations to seek the ability to adapt rapidly and effectively as a means to be successful or even to survive. In the quest for flexibility, every area of the organization has been scrutinized in order to render it as ¿agile¿ as possible. In the human resources arena, this analysis has led to the definition of diverse ¿flexible working practices¿ (FWP) that describe a wide range of employment practices, which differ from the traditional full-time job with a fixed salary and a permanent contract. These practices have been described using other terms, such as ¿alternative¿ (Polivka, 1996; Powell & Mainiero, 1999), ¿non-standard¿ (Kalleberg, 2000), or ¿atypical¿ (De Grip, Hoevenberg, &m Willems, 1997), which coincide in denoting their divergence from the most traditional forms of employment. This article will show that quite different practices have been embraced by the common term ¿flexible working practices.¿ Subsequently, the results of empirical research regarding the implications for organizational performance of a number of flexible practices will be commented on.

Liderazgo y dirección de empresas en el s. XXI

Peer-reviewed

El papel de la memoria de trabajo en el cálculo mental un cuarto de siglo después de Hitch = The role of working memory in mental arithmetic a quarter of century after Hitch

Desde que Hitch (1978) publicó el primer estudio sobre el rol de la memoria de trabajo en el cálculo han idoaumentando las investigaciones en este campo. Muchos trabajos han estudiado un único subsistema, pero nuestroobjetivo es identificar qué subsistema de la memoria de trabajo (bucle fonológico, agenda viso-espacial o ejecutivocentral) está más implicado en el cálculo mental. Para ello hemos realizado un estudio correlacional en el quehemos administrado dos pruebas aritméticas y nueve pruebas de la “Bateria de Test de Memòria de Treball” dePickering, Baqués y Gathercole (1999) a una muestra de 94 niños españoles de 7-8 años. Nuestros resultadosindican que el bucle fonológico y sobretodo el ejecutivo central inciden de forma estadísticamente significativa enel rendimiento aritmético

Liderazgo y dirección de empresas en el s. XXI

Peer-reviewed