Social capital can be understood as network-based civic engagement, based on reciprocity and trust. This sociological approach, however, is faced with problems when assuming network-based social capital as a stock of capital. Any form of capital should have a positive economic payoff, should be...

Theories of economic growth at the regional and national level, have expanded the traditional production function of the Solow model towards a wide function that collects conditioning factors of labour productivity, measured by R & D expenditure, the number of patents, the human capital, the...