This paper investigates how scientists decide whether to share information with their colleagues or not. Detailed data on the decisions of 1,694 bio-scientists allow to detect similarities and differences between academia-based and industry-based scientists. Arguments from social capital theory...

This work highlights the ways in which relationships between large retailers and suppliers develop themselves dependinf on of various types of suppliers. Suppliers diffrentiate among each other on the basis of size, the competitive structure of the market to which they belong. The case of...

A partire dalla metà degli anni sessanta si è verificato in tutte le economie occidentali un graduale cambiamento nella composizione e nel funzionamento dei canali di distribuzione dei beni di consumo. L'evoluzione si è manifestata attraverso una maggiore concentrazione orizzontale in tutti i...

This paper discusses solutions derived from lottery experiments using two alternative assumptions: that people perceive wealth changes as absolute amounts of money; and that people consider wealth changes as a proportion of some reference value dependant on the context of the problem under...