We study a simple model of a population of agents whose interaction network co-evolves with knowledge diffusion and accumulation. Diffusion takes place along the current network and, reciprocally, network formation depends on the knowledge profile. Diffusion makes neighboring agents tend to display similar knowledge levels. On the other hand, similarity in knowledge favors network formation. Th...

To understand the impact of low metallicities on giant molecular cloud (GMC) structure, we compare far infrared dust emission, CO emission, and dynamics in the star-forming complex N83 in the Wing of the Small Magellanic Cloud. Dust emission (measured by Spitzer as part of the SMC and SAGE-SMC surveys) probes the total gas column independent of molecular line emission and traces shielding from ...

â â â â â  abstract: â  as the number of independent countries increases and their economies become more integrated, we would expect to observe more multi-country currency ::::union::::s. this paper explores the pros and cons for different countries to adopt as an anchor the us dollar, the euro or the yen. in addition, it addresses the question of how co-movement of outputs and prices would res...

in the era of globalization, particularly, since early 1990s, economies around the world have been affected considerably by co-movements in one or more countries. in the literature this phenomenon is recognized as synchronization in business cycles, while joint policies being conducted by trading partners can modify such effects properly. the objective of this paper has been to evaluate a possi...

Using panel data from Spain Farinas and Ruano (IJIO 2005) test three hypotheses from a model by Hopenhayn (Econometrica 1992): (H1) Firms that exit in year t were in t-1 less productive than firms that continue to produce in t. (H2) Firms that enter in year t are less productive than incumbent firms in year t. (H3) Surviving firms from an entry cohort were more productive than non-surviving fir...

Social Protection as an Automatic Stabilizer This paper analyzes the effectiveness of social protection systems in Europe and the US to provide (income) insurance against macro level shocks in terms of automatic stabilizers. We find that automatic stabilizers absorb 38% of a proportional income shock and 47% of an idiosyncratic unemployment shock in Europe, compared to 32% and 34% in the US. Th...

Taxing Human Capital Efficiently: The Double Dividend of Taxing Non-Qualified Labour More Heavily Than Qualified Labour Assuming decreasing returns to education and the endogenous supply of qualified and nonqualified labour it is shown to be efficient to supplement a consumption tax with positive incentives for education. If the return from education is isoelastic and if the choice is between (...

This paper explores, through the use of a sequence of computable general equilibrium models, what harm or good, as measured both in terms of real output and utility, might be accomplished through coordinated perturbations in excise and income tax policy among sovereign jurisdictions. We focus on two issues: the taxation of below-retail transactions and the taxation of E-commerce across state li...

Recently, a significant share of the empirical analysis on the impact of public capital on regional growth has used multivariate time-series frameworks based on vector auto regressive (VAR) models. Nevertheless, not as much attention has been dedicated to the analysis of the long-run determinants of regional growth processes using multi-region panel data and applying panel integration and co-in...