A review of the types of Innovation System identified in the literature points to different models. Besides the very well-known National, Regional, Local, sectorial, and technological innovation systems, combinations of the previous can be identified, proposing sub-models such as National Open...

We provide empirical evidence of the dynamics of city size distribution for the whole of the twentieth century in U.S. cities and metropolitan areas. We focus our analysis on the new cities that were created during the period of analysis. The main contribution of this paper, therefore, is the...

This paper analyses the determinants of growth of American cities, understood as growth of the population or of per capita income, from 1990 to 2000. This empirical analysis uses data from all cities with more than 25,000 inhabitants in the year 2000 (1154 cities). The results show that while a...

This paper illustrates the effect of employment in the tradable sector on employment in the non-tradable sector in the same city with a simple model. The model predicts a significant positive local employment multiplier that increases in size with the unemployment rate. It also predicts that the...

We investigate whether the macroeconomic effects of government spending shocks vary with the level of uncertainty. Using postwar US data and a Self-Exciting Interacted VAR (SEIVAR) model, we find that fiscal spending has positive output effects in tranquil times but is contractionary during...

A wide urban-rural disparity is observed in employment growth in the United States. For example, employment growth averaged 2.1 percent in urban counties during 1998-2007, compared with just 1 percent in rural counties. In this study, we examine the sources of U.S. employment growth using the...

Since early 90s, the issue of income convergence across regions has been widely discussed in a number of papers, both looking at long-term tendencies and trying to establish the role played by several socio-economic determinants. Much less attention has instead been devoted to the analysis of...

The ongoing process of climate change goes along with an increase in the frequency and severity of various sorts of natural disasters. While the existing literature has almost exclusively focused on studying the direct effects resulting from different types of disasters, the effect of changing...

Using a gravity model, this study examines trade patterns of two isolated economies - Myanmar and North Korea. This study finds that two countries' trade is basically consistent with the prediction of the gravity model. However, economic sanctions toward these countries imposed by the U.S. and...

In this paper an attempt is made to assess the hypothesis of re- gional club-convergence, using a spatial panel analysis combined with B-Splines. In this context, a 'convergence-club' is conceived as a group of regions that in the long-run move towards steady-state equilib- rium, approximated in...