infonet-economy

This article contributes to the ongoing debate on native wage impacts of immigration. I propose a mobile-fixed factor distinction as a framework in which to think about the differential impact of immigration on various labor market groups. Skilled workers are treated as a fixed factor of production since the strong reliance on skill certification in Germany inhibits mobility and...

A new approach for modeling under-reported Poisson counts is developed. The parameters of the model are estimated by Markov Chain Monte Carlo simulation. An application to workers absenteeism data from the German Socio-Economic Panel illustrates the fruitfulness of the approach. Worker absenteeism and the level of pay are unrelated, but absence rates increase with firm size.

Innerhalb der Kontrakttheorie hat sich im vergangenen Jahrzehnt die Theorie unvollständiger Verträge als besonders fruchtbar erwiesen. Jüngste Forschungsarbeiten zeigen jedoch, daß die durch Hart und Moore (1988) als gegeben geglaubte Fundierung nicht sehr robust ist. Ziel des Artikels ist es, einen Einblick in aktuelle Fragen und Ergebnisse der diesbezüglichen Forschung zu...

Because of the public good character of global emissions it is difficult to implement reduction
targets as formulated at Toronto or Rio. This paper presents a simple mechanism for inducing
efficient contributions to the reductions of emissions as a non-cooperative equilibrium. The
world is partitioned into groups of countries, and then each country is taxed or...

This paper employs ICP expenditure data to investigate the relationship between income and product diversity. It turns out that per-capita income has a strong positive impact on the number of products consumed at a non-negligible level in a country, and a significant negative impact on the concentration of consumers' expenditure across different goods categories. Inequality in...

Contrary to what is usually implied by work on the relationship between political opportunity structures and social movements, political institutions are not a general setting offering or denying formal access and political opportunities to every challenge, but rather favor certain types of movements and constrain others. This process of institutional selectivity depends on the...

This paper presents a robust estimation of two income distribution models using Spanish data for the period 1990-91 under three different concepts of income. The effect on the estimates of the Theil index due to the choice of the definition of income and of the estimation method is also analysed.

The complexity of the interaction between time and uncertainty made finance models to one of the most important applications of probability theory and optimization theory. Stochastic programming combines those two fields with the intention to design methodologies for planning under uncertainty. This tutorial consists of two parts, written for practitioners, in particular financial...