Work and pay in flexible and regulated labor markets: A generalized perspective on institutional evolution and inequality trends in Europe and the US

In den letzten Jahren hat sich eine unified theory aus der Arbeitsökonomik heraus-gebildet, in der die Meinung vorherrscht, dass die Kombination makroökonomi- scher Schocks und flexibler Arbeitsmarktinstitutionen in den USA eine starke Zu-nahme der Lohnungleichheit verursacht habe, während die gleichen Schocks in Europa vor allem für gering qualifizierte Arbeitnehmer eine hohe Arbeitslosigkeit und geringe Beschäftigungsniveaus gebracht hätten als (unerwünschter) Nebeneffekt der durch die strikten institutionellen Regelungen des Arbeitsmarkts in Europa rigiden Löhne. In der vorliegenden Analyse wird hingegen argumentiert, dass Institutionen in Europa eigene Formen der Flexibilität entwickelt hätten, die im Gefolge der in der unified theory beschriebenen Schocks ebenfalls zu einer zunehmenden Un-gleichheit in Europa geführt hätten, aber eben in anderer Gestalt. In Frankreich sei beispielsweise die Ungleichheit bei der Arbeitsplatzsicherheit schneller gewachsen als in den USA. Darüber hinaus hätten Entwicklungen auf dem französischen Ar-beitsmarkt dazu geführt, dass sich gering qualifizierte Arbeitnehmer in unsicheren Beschäftigungsverhältnissen konzentrierten. -- In recent years a unified theory has emerged out of labor economics, which argues that a combination of macroeconomic shocks and flexible labor market institutions in the U.S. has produced strong upward trends in wage inequality, while these same shocks have produced high unemployment and low employment growth in Europe as a side effect of the wage stability preserved by that continents rigid labor market in-stitutions. This paper argues instead that European institutions in fact have evolved their own form of flexibility, which, in combination with the macroeconomic shocks described in the unified theory, have also led to rising inequality in Europe, but of a different form. Taking France as an example, inequality of employment security has risen faster here than in the U.S. Furthermore, trends in the French labor market have led to increased concentration of low-skill workers in these insecure job statuses. These results challenge the view that unemployment is the main mecha-nism through which European labor markets absorbed asymmetric shocks to their demand for labor. They also challenge the view that Europeans have intolerance for inequality, but instead suggest that the main difference between the two sides of the Atlantic concerns the nature of the inequalities that each society is willing to tolerate.

Thermodynamic study of heavy metals behavior during municipal waste incineration

The incineration of municipal solid waste (MSW) contributes significantly to the presence of heavy metals in urban area aerosols. It is thus important to ascertain the quantities and chemical forms of the heavy metals (HM) that are emitted from the incineration plant stacks. The behaviour of HM, which depends strongly on the thermal and chemical environments, was investigated herein with a modelling approach, consisting of several parts. First, a refuse bed combustion model was developed for simulating on-grate MSW incineration. It describes most of the physico-chemical and thermal phenomena occurring during waste combustion. Second, results from the bed model were taken as boundary conditions to perform 3D simulations of the post-combustion zone and of the boiler. The case studied was of the Strasbourg incineration plant. Finally, the local thermal conditions and the local elementary compositions of gas and solid phases obtained from these simulations were used to carry out thermodynamic calculations of the speciation of HM at each point in the incinerator. The results for four metals (Cd, Zn, Pb, Cr) are presented, discussed and compared to available data. Predicted species are in agreement with observations for volatile metals, except lead, whose volatilization seems overestimated

Work and pay in flexible and regulated labor markets: A generalized perspective on institutional evolution and inequality trends in Europe and the US

In den letzten Jahren hat sich eine unified theory aus der Arbeitsökonomik heraus-gebildet, in der die Meinung vorherrscht, dass die Kombination makroökonomi- scher Schocks und flexibler Arbeitsmarktinstitutionen in den USA eine starke Zu-nahme der Lohnungleichheit verursacht habe, während die gleichen Schocks in Europa vor allem für gering qualifizierte Arbeitnehmer eine hohe Arbeitslosigkeit und geringe Beschäftigungsniveaus gebracht hätten als (unerwünschter) Nebeneffekt der durch die strikten institutionellen Regelungen des Arbeitsmarkts in Europa rigiden Löhne. In der vorliegenden Analyse wird hingegen argumentiert, dass Institutionen in Europa eigene Formen der Flexibilität entwickelt hätten, die - im Gefolge der in der unified theory beschriebenen Schocks - ebenfalls zu einer zunehmenden Un-gleichheit in Europa geführt hätten, aber eben in anderer Gestalt. In Frankreich sei beispielsweise die Ungleichheit bei der Arbeitsplatzsicherheit schneller gewachsen als in den USA. Darüber hinaus hätten Entwicklungen auf dem französischen Ar-beitsmarkt dazu geführt, dass sich gering qualifizierte Arbeitnehmer in unsicheren Beschäftigungsverhältnissen konzentrierten.In recent years a 'unified theory' has emerged out of labor economics, which argues that a combination of 'macroeconomic shocks' and flexible labor market institutions in the U.S. has produced strong upward trends in wage inequality, while these same shocks have produced high unemployment and low employment growth in Europe as a side effect of the wage stability preserved by that continent's rigid labor market in-stitutions. This paper argues instead that European institutions in fact have evolved their own form of flexibility, which, in combination with the macroeconomic shocks described in the unified theory, have also led to rising inequality in Europe, but of a different form. Taking France as an example, inequality of employment security has risen faster here than in the U.S. Furthermore, trends in the French labor market have led to increased concentration of low-skill workers in these insecure job statuses. These results challenge the view that unemployment is the main mecha-nism through which European labor markets absorbed asymmetric shocks to their demand for labor. They also challenge the view that Europeans have intolerance for inequality, but instead suggest that the main difference between the two sides of the Atlantic concerns the nature of the inequalities that each society is willing to tolerate

Influence of the Cu-Te composition and microstructure on the resistive switching of Cu-Te/Al(2)O(3)/Si cells

In this letter, we explore the influence of the Cu(x)Te(1-x) layer composition (0.2 0.7 leads to large reset power, similar to pure-Cu electrodes, x < 0.3 results in volatile forming properties. The intermediate range 0.5< x < 0.7 shows optimum memory properties, featuring improved control of filament programming using <5 mu A as well as state stability at 85 degrees C. The composition-dependent programming control and filament stability are closely associated with the phases in the Cu(x)Te(1-x) layer and are explained as related to the chemical affinity between Cu and Te. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3621835

Introduction of WO3 Layer in a Cu-Based Al2O3 Conductive Bridge RAM System for Robust Cycling and Large Memory Window

In this paper, we optimize a WO3\Al2O3 bilayer serving as the electrolyte of a conductive bridge RAM device using a Cu-based supply layer. By introducing a WO3 layer formed by thermal oxidation of a W plug, the hourglass shape of the conductive filament is desirably controlled, enabling excellent switching behavior. We demonstrate a clear improvement of the microstructure and density of the WO3 layer by increasing the oxidation time and temperature, resulting in a strong increase of the high-resistance-state breakdown voltage. The high quality WO3 microstructure allows thus the use of a larger reset pulse amplitude resulting both in larger memory window and failure-free write cycling.1197Ysciescopu

A deep level transient spectroscopy study of hole traps in GexSe1-x-based layers for ovonic threshold switching selectors

status: publishe

Employment Expectations and Gross Flows by Type of Work Contract

There is growing interest in understanding firms’ temporary and permanent employment practices and how institutional changes shape them. Using data on Spanish establishments, we examine: (a) how employers adjust temporary and permanent job and worker flows to prior employment expectations, and (b) how the 1994 and 1997 labour reforms promoting permanent employment affected establishments’ employment practices. Generally, establishments’ prior employment expectations are realized through changes in all job and worker flows. However, establishments uniquely rely on temporary hires as a buffer to confront diminishing long-run employment expectations. None of the reforms significantly affected establishments’ net temporary or permanent employment flows.http://deepblue.lib.umich.edu/bitstream/2027.42/40032/3/wp646.pd

Investigation of pre-existing and generated defects in non-filamentary a-Si/TiO2 RRAM and their impacts on RTN amplitude distribution

An extensive investigation of the pre-existing and generated defects in amorphous-Si/TiO2 based non-filamentary (a-VMCO) RRAM device has been carried out in this work to identify the switching and degradation mechanisms, through a combination of random-telegraph-noise (RTN) and constant- voltage-stress (CVS) analysis. The amplitude of RTN, which leads to read instability, is also evaluated statistically at different stages of cell degradation and correlated with different defects, for the first time. It is found that the switching between low and high resistance states (LRS and HRS) are correlated with the profile modulation of pre-existing defects in the ‘defect-less’ region near the a-Si/TiO2 interface. The RTN amplitude observed at this stage is small and has a tight distribution. At longer stress times, a percolation path is formed due to defects generation, which introduces larger RTN amplitude and a significant tail in its distribution

Conformational effects on the Circular Dichroism of Human Carbonic Anhydrase II: a multilevel computational study

Circular Dichroism (CD) spectroscopy is a powerful method for investigating conformational changes in proteins and therefore has numerous applications in structural and molecular biology. Here a computational investigation of the CD spectrum of the Human Carbonic Anhydrase II (HCAII), with main focus on the near-UV CD spectra of the wild-type enzyme and it seven tryptophan mutant forms, is presented and compared to experimental studies. Multilevel computational methods (Molecular Dynamics, Semiempirical Quantum Mechanics, Time-Dependent Density Functional Theory) were applied in order to gain insight into the mechanisms of interaction between the aromatic chromophores within the protein environment and understand how the conformational flexibility of the protein influences these mechanisms. The analysis suggests that combining CD semi empirical calculations, crystal structures and molecular dynamics (MD) could help in achieving a better agreement between the computed and experimental protein spectra and provide some unique insight into the dynamic nature of the mechanisms of chromophore interactions

Work and pay in flexible and regulated labor markets: a generalized perspective on institutional evolution and inequality trends in Europe and the U.S.

"In recent years a 'unified theory' has emerged out of labor economics, which argues that a combination of 'macroeconomic shocks' and flexible labor market institutions in the U.S. has produced strong upward trends in wage inequality, while these same shocks have produced high unemployment and low employment growth in Europe as a side effect of the wage stability preserved by that continent's rigid labor market institutions. This paper argues instead that European institutions in fact have evolved their own form of flexibility, which, in combination with the macroeconomic shocks described in the unified theory, have also led to rising inequality in Europe, but of a different form. Taking France as an example, inequality of employment security has risen faster here than in the U.S. Furthermore, trends in the French labor market have led to increased concentration of low-skill workers in these insecure job statuses. These results challenge the view that unemployment is the main mechanism through which European labor markets absorbed asymmetric shocks to their demand for labor. They also challenge the view that Europeans have intolerance for inequality, but instead suggest that the main difference between the two sides of the Atlantic concerns the nature of the inequalities that each society is willing to tolerate." (author's abstract)"In den letzten Jahren hat sich eine 'unified theory' aus der Arbeitsökonomik herausgebildet, in der die Meinung vorherrscht, dass die Kombination makroökonomischer Schocks und flexibler Arbeitsmarktinstitutionen in den USA eine starke Zunahme der Lohnungleichheit verursacht habe, während die gleichen Schocks in Europa vor allem für gering qualifizierte Arbeitnehmer eine hohe Arbeitslosigkeit und geringe Beschäftigungsniveaus gebracht hätten als (unerwünschter) Nebeneffekt der durch die strikten institutionellen Regelungen des Arbeitsmarkts in Europa rigiden Löhne. In der vorliegenden Analyse wird hingegen argumentiert, dass Institutionen in Europa eigene Formen der Flexibilität entwickelt hätten, die - im Gefolge der in der 'unified theory' beschriebenen Schocks - ebenfalls zu einer zunehmenden Ungleichheit in Europa geführt hätten, aber eben in anderer Gestalt. In Frankreich sei beispielsweise die Ungleichheit bei der Arbeitsplatzsicherheit schneller gewachsen als in den USA. Darüber hinaus hätten Entwicklungen auf dem französischen Arbeitsmarkt dazu geführt, dass sich gering qualifizierte Arbeitnehmer in unsicheren Beschäftigungsverhältnissen konzentrierten. Diese Ergebnisse stellen eine Herausforderung an die Sichtweise dar, dass Arbeitslosigkeit der Hauptmechanismus sei, durch den die europäischen Arbeitsmärkte asymmetrische Schocks auf der Arbeitsnachfrageseite absorbierten. Ebenso wird in Frage gestellt, dass Europa nicht bereit sei, Ungleichheit zu tolerieren; vielmehr wird die Annahme gestützt, dass der Hauptunterschied auf den beiden Seiten des Atlantiks in dem Typus von Ungleichheiten liegt, den die jeweiligen Gesellschaften zu tolerieren bereit sind." (Autorenreferat