Using administrative linked employer-employee data for Norway we estimate the impact of changes in tax subsidies for union membership on individuals' membership probabilities. Increased subsidisation of the union good increases union take-up, while increased union fees reduce the demand for...

The economic and financial crisis, especially the sovereign debt crisis, discovered many deficiencies and weaknesses in the banking sector in the European Union (EU). The need for special surveillance and supervision of cross-border banking cooperation and termination of the toxic link between...

We develop a model to analyze the growth of social organizations as a spatially nested mixed-influence diffusion process. Drawing on gravity models and threshold models, we split the social system into social units and model the diffusion process as a system of differential equations. The...