We test the Global Engagement (GE) hypothesis according to which the most globally engaged firms, whether multinationals or exporters, are the most innovative. The test is applied to data from 4815 Portuguese firms for the period 2002–2004 based on the 4th Community Innovation Survey for...

This paper develops an endogenous growth model with technological knowledge directed towards high- versus low-skilled labour, augmented with North–South international trade of intermediate goods and with human-capital accumulation, to analyse how trade affects wage inequality and the...

Innovation is the main engine of growth in an increasing number of economies. Innovation economies are, according to the Quadruple Helix (QH) Innovation Theory, sustained by four pilars – Firms, Academia, Government and Consumers –, all operating in a systemic, interactive environment. We...

This paper develops an endogenous growth model to study the decentralized equilibrium and the optimum conditions in an economy which uses polluting resources. The model includes two policy instruments, a subsidy to final consumption and an emissions tax. It also considers two forms of endogenous...

We present a dynamic, non-scale general equilibrium model with two human-capital types where Schumpeterian R&D and human-capital accumulation are the engines of growth and wage inequality. In particular, wage inequality is encouraged by relative changes in supply and demand of both human-capital...

Considering an integrated area, this paper deals with the balance between the positive effects in the degree of economic cohesion resulting from R&D subsidies, temporarily granted from an imitator and less developed country, and the external negative effects arising from the eventual creation of...

This paper aims to contribute to a better understanding of the volume of the Non-Observed Economy (NOE) in Portugal, by estimating, based on MIMIC models (multiple indicators multiple causes), its path in the period 1977-2008. On the one hand, given the influence of the tax burden, the burden of...