This paper provides a survey of recent experimental work in economics focussing on social and economic networks. The experiments consider networks of coordination and cooperation, buyer-seller networks , and network formation.

I study a network based mechanism of norm enforcement in a community where agents play a Prisoner’s Dilemma with changing partners. Agents may choose a number of close friends. Communication to close friends within the network enforces cooperation. In a world with noiseless communication, it is optimal that each agent has close contacts to all other network members. Moreover, it is optimal to h...

We have observed transverse pattern formation leading to highly regular structures in both the near and far fields when a near-resonant laser beam propagates without feedback through an atomic sodium vapor. One example is a regular far-field honeycomb pattern, which results from the transformation of the laser beam within the vapor into a stable three-lobed structure with a uniform phase distri...

The Internet can be a powerful cross-cultural incoming tourism communication tool if used in a proper way. Visitor images of destinations are important drivers of consumer choice and therefore, how destinations provide information to visitors is critically important to image formation. This text first looks at the general features of Internet as a cross-culture communication tool in tourism, ba...

362 Maedica A Journal of Clinical Medicine, Volume 4 No.4 2009 Comment on a paper: R Prymula, CASiegrist, R Chlibek et al – Effect of prophylactic paracetamol administration at time of vaccination on febrile reactions and antibody responses in children: two open-label, randomised controlled trials; Lancet 17 October 2009; Volume 374:9698; 1339-1350 Prophylactic paracetamol lowers the effect of ...

Pattern formation in development is a complex process which involves spatially distributed signals called morphogens that influence gene expression and thus the phenotypic identity of cells. Usually different cell types are spatially segregated, and the boundary between them may be determined by a threshold value of some state variable. The question arises as to how sensitive the location of su...