By living in social groups with potential competitors, animals forgo monopolizing access to resources. Consequently, debate continues over how selection might favour sociality among competitors. For example, several models exist to account for the evolution of shared reproduction in groups. The 'concession model' hypothesizes that dominant reproducers benefit from the presence of subordinates, ...

The mixed outcomes of seemingly well-intentioned partnerships that try to create mutually beneficial agreements between local communities and private firms remain a puzzle. This study looks for answers to this puzzle by reviewing a large number of empirical studies in a wide variety of contexts. The kinds of local skills and expertise that are important for good timber concession management, ho...

Abstract. The systematic development of British Concession in the 19th century had a profound impact on cities history modernization East Asia. To find out relevance urban management system concession and process between different Asia, this paper combs land allocation early by using regulation. It focuses specific case 1866 regulation promulgated Tianjin from perspective colonialism constructi...

In this paper we model concession contracts between a public and a private party, under dynamic uncertainty arising both from the volatility of the cash flow generated by the project and by the strategic behaviour of the two parties. Under these conditions we derive three notions of equilibrium price and apply the model to a case study for one of the most important concession contracts in Italy...