A simple person's approach to understanding the contagion condition for spreading processes on generalized random networks

We present derivations of the contagion condition for a range of spreading mechanisms on families of generalized random networks and bipartite random networks. We show how the contagion condition can be broken into three elements, two structural in nature, and the third a meshing of the contagion process and the network. The contagion conditions we obtain reflect the spreading dynamics in a clear, interpretable way. For threshold contagion, we discuss results for all-to-all and random network versions of the model, and draw connections between them.Comment: 10 pages, 9 figures; chapter to appear in "Spreading Dynamics in Social Systems"; Eds. Sune Lehmann and Yong-Yeol Ahn, Springer Natur

Maori & Psychology Research Unit annual report 2004

Annual report of the Maori and Psychology Research Unit (MPRU) 2004. The unit was established in August of 1997. The unit is designed to provide a catalyst and support network for enhancing research concerning the psychological needs, aspirations, and priorities of Maori people. The MPRU is well situated to draw together skilled and experienced interdisciplinary research groups by networking and establishing working relationships with staff and students within the Faculty of Arts and Social Sciences, the University, and the wider community

Maori & Psychology Research Unit annual report 2009

Annual report of the Maori and Psychology Research Unit (MPRU) 2009. The unit was established in August of 1997. The unit is designed to provide a catalyst and support network for enhancing research concerning the psychological needs, aspirations, and priorities of Maori people. The MPRU is well situated to draw together skilled and experienced interdisciplinary research groups by networking and establishing working relationships with staff and students within the Faculty of Arts and Social Sciences, the University, and the wider community

Maori & Psychology Research Unit annual report 2006

Annual report of the Maori and Psychology Research Unit (MPRU) 2006. The unit was established in August of 1997. The unit is designed to provide a catalyst and support network for enhancing research concerning the psychological needs, aspirations, and priorities of Maori people. The MPRU is well situated to draw together skilled and experienced interdisciplinary research groups by networking and establishing working relationships with staff and students within the Faculty of Arts and Social Sciences, the University, and the wider community

Māori & Psychology Research Unit annual report 2011

Annual report of the Māori and Psychology Research Unit (MPRU) 2011. The unit was established in August of 1997. The unit is designed to provide a catalyst and support network for enhancing research concerning the psychological needs, aspirations, and priorities of Maori people. The MPRU is well situated to draw together skilled and experienced interdisciplinary research groups by networking and establishing working relationships with staff and students within the Faculty of Arts and Social Sciences, the University, and the wider community

Strategic Interaction in the Sex Market

There have been few attempts to empirically explain the pursuit of short term relationships and sex in a formal context. Previous work has lamented the paucity of empirical studies which utilize incentive driven behavior to draw conclusions and recommend policy. We develop a model of social network formation through sexual matching, provide an empirical approach derived from the model and apply it to a population of high interest. Specifically, we apply the approach to a population of sexually active men who have sex with men (MSM) in a large metropolitan area and derive qualitative conclusions regarding how individuals behave in the marketplace for sex

Contract Enforcement, Institutions and Social Capital: the Maghribi Traders Reappraised

Economists draw important lessons for modern development from the medieval Maghribi traders who, according to Greif, enforced contracts multilaterally through a closed, private-order ‘coalition’. We show that this view is untenable. The Maghribis used formal legal mechanisms and entered business associations with non-Maghribis. Not a single empirical example adduced by Greif shows that any ‘coalition’ actually existed. The Maghribis cannot be used to argue that the social capital of exclusive networks will facilitate exchange in developing economies. Nor do they provide any support for the cultural theories of economic development and institutional change for which they have been mobilised.contract enforcement, reputation, legal system, social network

AGENT: Alumni growth and engagement across new technologies

The AGENT project aims to use social networking technologies (LinkedIn and Facebook) to support the development of undergraduates’ employability and career development. The focus of the project is on e-mentoring by alumni to provide a ‘bridge’ between individuals whose social ties and connections are weakened by time and distance, whilst at the same time capitalising on the learning opportunities afforded by the widening of social networks. Social networking sites (SNSs) have been shown to provide students with the tools to make connections, build relationships and support personal development. From a social capital perspective, SNSs can support ‘weak ties’ by allowing students to grow a social network from which to draw resources in the form of information, knowledge, advice and expertise that an institution’s alumni can provide. Alumni are a key resource for building professional networking communities that can provide offline as well as online support to students. We report on an on-going JISC project –AGENT (Alumni Growth and Engagement across New Technologies) that explores how Web 2.0 technologies engage alumni, create the sense of belonging, develop more effective and mutually-beneficial alumni-student connections and associated positive social capital outcomes.Joint Information Systems Committee (JISC) 2011-201