Cooperative learning: we can also do it without task structure

The present study focuses on the use of a cooperative methodology with university students during the last year of their degree programme. The task structure could be freely chosen, and there were no restraints on group decisions to deal with the classroom work. All the elements of cooperation were based on a reward structure. The results show that internal group cohesion can be achieved through an inter‐group competitive reward system and positive interdependence can be reached with an extreme cooperative reward structure, grounded on individual assessments of the students. The results also point to the importance of a reward structure, based on grades, when using a cooperative methodology in the university classroom.

Este estudio supone la utilización de una metodología cooperativa con alumnos universitarios en el último curso de la carrera. La estructura de tarea es siempre libre y no hay ninguna restricción a las decisiones del grupo para abordar el trabajo de aula. Todos los elementos de la cooperación se abordan desde la estructura de recompensa: la cohesión interna de los grupos se consigue mediante un sistema de recompensa competitiva intergrupal y la interdependencia positiva se logra mediante una estructura de recompensa cooperativa extrema, basada en las evaluaciones individuales de los alumnos. Los resultados demuestran la importancia que tiene una estructura de recompensa, basada en las calificaciones, para la aplicación de una metodología cooperativa al aula universitaria.     

Estimating the stability of census-based racial/ethnic classifications: the case of Brazil

This study presents a method of estimating the degree to which people change their racial/ethnic identity from one census enumeration to another. The technique is applied to the classification of skin colour in Brazil (white, black, brown, yellow). For the period 1950-80, the findings show a deficit of 38 per cent in the black category and a gain of 34 per cent in the brown category, suggesting that a large proportion of individuals who declared themselves black in 1950 reclassified themselves as brown in 1980. Estimates for 1980-90, adjusted for the effects of international migration, reveal a similar pattern, although the magnitude of colour reclassification may have declined somewhat during the 1980s. Procedures to determine the stability of racial/ethnic identity produce data useful to recent policy initiatives that rely on demographic censuses to measure changes in the status of minority groups in less developed countries.     

The Liberalization of Cannabis Possession Laws and Birth Outcomes: A State-Level Fixed Effects Analysis, 2003–2019

Population Research and Policy Review - As states liberalize their cannabis laws, cannabis use has become more widespread among adults across the United States, including pregnant women. As a...     

Postulates and paradoxes of relative voting power — A critical re-appraisal

This paper re-evaluates the problem of measuring thea priori relative voting power of a voter in an assembly. We propose several new intuitively compelling postualtes that any reasonable index of voting power ought to satisfy. At the same time we argue that most of the paradoxes of voting power discussed in the literature are paradoxical only in a weak sense, if at all. This leaves three crippling paradoxes — the well-known paradox ofweighted voting, and two new ones presented here: thebloc anddonation paradoxes. We evaluate the four main relative power indices discussed in the literature with respect to these three severe paradoxes. The Shapley-Shubik index is seen to be immune to all three paradoxes, while the Deegan-Packel index is vulnerable to all three. The Banzhaf and the Johnston indices are demonstrably immune to the paradox of weighted voting. However, they are shown to suffer from both the bloc and the donation paradoxes. We argue that this seriously undermines these indices in a hitherto unsuspected way. Several other theoretical issues relating to voting power are discussed.     

The resurgence of poverty and the struggle against exclusion: A new challenge for social security in Europe?

This article overviews the important ships that have taken place during recent decades in scientific thinking with respect to poverty and social exclusion, and social security in Europe. Starting from this it points to the basic aims, achievements and shortcomings of social security policies in the fight against social exclusion. As the lack of labour demand presents itself as the ultimate challenge for social security, the need for a European perspective is addressed, together with the inadequacy of existing policy-making structures.     

Towards Common Ground and Trading Zones in Management Research and Practice

The purpose and nature of management scholarship is contested, evidenced by debates about the ‘academic–practitioner divide’ and attendant remedies for addressing it, including mode 2 and mode 3 research, engaged scholarship, evidence‐based management and design science. In this paper the authors argue that, without a culture of dialogical encounter, management scholarship will never be able to emerge from its adolescence, and management will not develop into the profession that it should and can become. The central proposition is that the highly fragmented landscape of management (practice and scholarship) lacks sufficient capability for dialogue among the plurality of actors situated across that landscape. Developing the dialogical capability ultimately required to break this fundamental impasse demands, first, a shared sense of purpose and responsibility (akin to the Hippocratic Oath in medicine) and, second, institutional entrepreneurship to establish more and better ‘trading zones’. Drawing on the philosophy of pragmatism, the authors further this endeavour by identifying and proposing key elements of a statement of shared purpose and responsibility. Finally, they explore the nature and characteristics of successful trading zones, highlighting particular examples that have already been created in management studies.