We investigate the role of networks of military alliances in preventing or encouraging wars between groups of countries. A country is vulnerable to attack if there is some fully-allied group of countries that can defeat that country and its (remaining) allies based on a function of their...

The success of NPD projects of high-cost, engineering-intensive, and customized development products is largely dependent on information sharing with actors from customers regarding their specific requirements (Von Hippel, 1986). But information sharing is also necessary among actors from...

The paper reports on work values in Europe. At the country level we find that job satisfaction is related to lower working hours, higher well-being, and a higher GDP per capita. Moving to the micro level, we turn our attention from job satisfaction to analyse empirically work centrality and work...