Nash equilibria of network formation games under consent

We investigate the Nash equilibria of game theoretic models of network formation based on explicit consent in link formation. These so-called “consent models” explicitly take account of link formation costs. We provide characterizations of Nash equilibria of such consent models under both one-sided and two-sided costs of link formation. We relate these equilibrium concepts to link-based stability concepts, in particular strong link deletion proofness.

This is Not a Photo Opportunity: Verbal/Visual Struggle in Francophone Travel Narratives

This article explores the ethics and aesthetics of representing travel and intercultural encounter in textual and photographic forms. Taking as its starting point two textual accounts of journeys in the course of which photographic narratives were also produced, the article explores the possibilities and limitations of textuality and visuality and thus considers the implications of, or new opportunities afforded by, reading – and ultimately publishing – these narratives as iconotexts. Focusing on Pierre Loti's L'Inde (sans les Anglais) (1901) and Ella Maillart's Oasis interdites (1937), the article also offers an alternative perspective on writers whose work is commonly associated with an imperialist or exoticist discourse, with cliché and one-dimensionality. As such, it aims to replace the monolithic, orientalist vision often attributed to these writers with ambiguity, ethical hesitation and a plurality of perspectives. Using these examples as a springboard, the article seeks to argue that verbal/visual mobility in narratives representing mobility contributes to resisting static, monolithic perceptions of other cultures. Using the work of British graffiti artist Banksy as a foil for exploring photography as cultural commodification and art as commodity, the article also seeks to engage with current debates in Humanities research on ekphrasis and iconotextuality and on the problematics of representing other cultures within an ethical and/or humanist frame.

London 2012 and Climate Change. Examining the potential impact of the current economic crisis in the environmental legacy of the Games

The International Olympic Committee (IOC) declares environmental protection to be the third dimension of the Olympic movement. That, in effect, means that nations wishing to host the Games have to present themselves as reliable practitioners of environmental sustainability (ES) in their applications. The greening of sports mega-events, and the hosting of Olympic Games in particular, is now reasonably well established. Yet evidence from the first decade of environmentally-conscious Olympics points to diverging patterns of achievement in the operationalisation of the IOC’s ‘third pillar’. As is now common knowledge, for example, Sydney 2000 was the first ‘Green Olympics’ in the history of the Games; yet four years later, Athens provided a stark contrast, and was the subject of highly critical assessment reports by environmental organisations. Yet Athens has not stopped the Bid Committee for the Beijing 2008 Games claiming that it would ‘leave the greatest Olympic Games environmental legacy ever’ (UNEP 2007: 26), while the London 2012 promotes the concept of the ‘One Planet Olympics’.

In this context and in light of the current global economic crisis, can we claim that London 2012 has the capacity to fulfil its environmental ambitions? This question is adopted in continuity with similar framed questions that have been posed in relation to the most recent Olympics and it is tackled by adopting an investigative model that is placed within discourses of ‘reflexive modernisation’.

Identification of lesion components that influence visual function in age related macular degeneration

To explore the relation between lesion composition as assessed by fundus photography and fluorescein angiography with clinical measures of vision in eyes of patients with age related macular degeneration (AMD).