Why some species become invasive while others do not is a central research request in biological invasions. Clonality has been suggested as an attribute that could contribute to plant invasiveness. Division of labor is an important advantage of clonal growth, and it seems reasonable to anticipate that clonal plants may intensify this clonal attribute in an invaded range because of positive sele...

This dissertation examines the sources and effects of the dramatic increase of the paid domestic sector in Europe, particularly in Spain. This project addresses three main questions about social inequality. First, the thesis analyzes how public policy debates framed the change in this economic sector in relation to issues of gender equality and shifts in immigration across the EU and in Spain. ...

This paper reports results from a laboratory experiment that investigates the Meltzer-Richard model of equilibrium tax rates, inequality, and income redistribution. We also extend that model to incorporate social preferences in the form of altruism and inequality aversion. The experiment varies the amount of inequality and the collective choice procedure to determine tax rates. We report four m...

From microbes to humans, the success of many organisms is achieved by dividing tasks among specialized group members. The evolution of such division of labor strategies is an important aspect of the major transitions in evolution. As such, identifying specific evolutionary pressures that give rise to group-level division of labor has become a topic of major interest among biologists. To overcom...

The ecological success of social insects is often attributed to an increase in efficiency achieved through division of labor between workers in a colony. Much research has therefore focused on the mechanism by which a division of labor is implemented, i.e., on how tasks are allocated to workers. However, the important assumption that specialists are indeed more efficient at their work than gene...

One of the central tasks that couples face in coparenting is the division of labor. In this study, we explored division of family labor among lesbian and heterosexual couples who were parenting 4 to 6 year-old children. Sixty-six families, half headed by lesbian couples and half headed by heterosexual couples, participated in the study. Measures of parental attitudes, resources, demographics, a...