Solidarity Value and Solidarity Share Functions for TU Fuzzy Games

The Shapley-Solidarity Value for Games with a Coalition Structure

A value for games with a coalition structure is introduced, where the rules guiding cooperation among the members of the same coalition are different from the interaction rules among coalitions. In particular, players inside a coalition exhibit a greater degree of solidarity than they are willing to use with players outside their coalition. The Shapley value is therefore used to compute the agg...

Solidarity Group Lending and Global Games

I study microfinance solidarity group lending within a global game framework. Group members invest independently in either a safe or a risky project. Ex ante observation and coordination on the choice of projects is not always possible. Though risky projects allow microentrepreneurs to extract risk premia, safe projects raise the probability of success of the group loan, in which case group mem...

Solidarity in games with a coalition structure

[Tuberculosis and solidarity].

Tuberculosis is very probably the oldest human epidemic and the one that has inflicted the most harm in the history of the species. Recent studies have estimated tuberculosis to be about 3 million years old,1 and during much of that time this disease has been our greatest scourge. It is difficult to accept that tuberculosis has been causing harm for so many millions of years and that even today...

Digital Solidarity

Over the last two decades, the Internet has been a laboratory for social innovation. One of the most unexpected collective discoveries has been the existence of another mode of organization to achieve large−scale co−ordination. This mode relies neither on the market, where price signals perform important co−ordinating functions horizontally (as Friedrich Hayek famously stated), nor on public an...