<title>Abstract</title> We develop a R&D-based growth model with productive public expenditure in order to frame the Quadruple Helix (QH) innovation concept, based on four helices: <italic>Academia & Technological Infrastructures</italic>, <italic>Firms</italic>, <italic>Government</italic> and <italic>Civil Society</italic>. Our motivation stems from acknowledgment that the...

This paper shows that autocatalytic trade cycles can be a positive feedback system for innovation and thus for economic growth. Using United Nations data, a trade network is proposed and a set of variables that represent the participation of countries in autocatalytic trade cycles is...

An endogenous growth model with renewable and nonrenewable Intermediate Goods (IGs) is developed to study the exogenous environmental quality effects on technological-knowledge bias and on Final-Good (FG) sector bias. Solving the transitional dynamics numerically and removing the scale effects,...

By combining economic and financial data for Portuguese manufacturing firms with data on their exports and imports, we uncover some aspects of the relationship between international trade engagement and firms’ performances. In line with recent theoretical and empirical developments in the...

Multidisciplinary innovation is the main engine of growth for an increasing number of economies. Innovation requires the participation of and interaction between all economic agents. It also requires public spending on education, research and infrastructures. Our main goal is to emphasize the...

This paper studies the effects of the diffusion of a General Purpose Technology (GPT), that spreads first within the developed country of its origin (North), and then to a developing country (South). We use a general equilibrium model of growth, where each final good is produced by one of two...

In this model of North and South economies, growth is driven by Schumpeterian R&D and by accumulation of two types of human capital, versatile and specialized. The former is school intensive while the latter is on-the-job-training intensive. Growth is endogenous and independent of scale effects....

In the first part of this paper the effects of trade cycles on economic growth are discussed to test the hypothesis of autocatalytic trade cycles, which indicates that more innovation is produced in countries that are a part of these cycles. Using United Nations data, a trade network is...