Income inequality in the digital era. WP C.S.D.L.E. "Massimo D'Antona", N. 9, 2002

[From the Introduction]. The changes in the employment relationship have been accompanied by a marked deterioration in income distribution.... The growing gap between rich and poor stands as a persistent reminder that current economic arrangements are not moving in the direction of economic justice. The dramatic extent of inequality offends our sense of decency and undermines social cohesion. In recent years, many economists have analyzed the trends in income distribution in order to isolate the causes of the current trends. In this paper I review the existing evidence and theories about the causes of rising income inequality. I suggest that the changing nature of the employment relationship is contributing to, or perhaps even driving, rising income inequality. The following chapter presents and evaluates several policy proposals for redressing inequality or ameliorating its effects

Flexibilization, Globalization, and Privatization: Three Challenges to Labour Rights in Our Time

Three dynamics are coalescing to reshape labour relations in the twenty-first century in the United States: They are flexibilization, globalization, and privatization. Flexibilization refers to the changing work practices by which firms no longer use internal labour markets or implicitly promise employees lifetime job security, but rather seek flexible employment relations that permit them to increase or diminish their workforce, and reassign and redeploy employees with ease. Globalization refers to the increase in cross-border transactions in the production and marketing of goods and services that facilitates firm relocation to low labour cost countries. And privatization refers to the rise of neo-liberal ideology, the attack on big government and the dismantling of the social safety net that have dominated public policy in the United States in recent years. All three of these dynamics have been detrimental to U.S. employment standards and union strength. This article describes how each of these dynamics has undermined labour rights and then asks, what prospects are there, in light of this environment, for protecting employment rights, re-invigorating unions, and securing a social safety net? The author answers by pointing to the many areas of social life in which the spread of the global leads to the reemergence. of the local. She argues that the response to the global threat to labour standards lies in a revival of collective action at the local level. She further contends that the combined forces of flexibilization, globalization, and privatization make collective action at the local level not only necessary, but also possible

Das Amerikanische Arbeitsrecht aus der Perspektive Historischer und Zukünftiger Entwicklungen

In den vergangenen 15 Jahren ließen sich im amerikanischen Kollektiv- und Individualarbeitsrecht sowohl eine Fortsetzung der früheren Trends als auch die Entstehung neuer Themenfelder beobachten.Das System des kollektiven Arbeitsrechts, das die gewerkschaftliche Interessenvertretung und die Beziehungen zwischen den Beschäftigten und dem Management regelt, hat sich in seiner grundlegenden, auf die Zeit der Great Depression und die Jahre unmittelbar nach dem Zweiten Weltkrieg zurückgehenden Rechtsstruktur kaum verändert. Das amerikanische Individualarbeitsrecht hat dagegen mit der Einführung zusätzlicher individueller Arbeitnehmerrechte eine beträchtliche Dynamik entwickelt. Die Veränderungen in der Arbeitsorganisation und die Entwicklung neuer Formen von Arbeitsverträgen bedeuten eine zusätzliche Herausforderung für die traditionelle Sicht der Arbeitsbeziehungen, auf denen ein beträchtlicher Teil des amerikanischen Arbeitsrechts basiert. Schließlich wurden auch durch den Globalisierungsprozess und den Beitritt der Vereinigten Staaten zu neuen Handelsabkommen neue arbeitsrechtliche Fragen aufgeworfen.Durch diese Entwicklungen ergeben sich große Probleme für die derzeitige, im amerikanischen Arbeitsrecht verankerte, Struktur der kollektiven Interessenvertretung

Two-Particle Microrheology of quasi-2D Viscous Systems

We study the correlated motions of colloidal particles in a quasi-2D system (Human Serum Albumin (HSA) protein molecules at an air-water interface) for different surface viscosities $\eta_{s}$. We observe a transition in the behavior of the correlated motion, from 2-D interface dominated at high $\eta_{s}$ to bulk fluid-dependent at low $\eta_{s}$. The correlated motions can be scaled onto a master curve which captures the features of this transition. This master curve also characterizes the spatial dependence of the flow field of a viscous interface in response to a force. From the flow field and the correlated particle motions, we calculate a two-particle MSD (mean square displacement) for direct comparison with rheological measurements.Comment: 4 pages, 4 figures, submitted to PR

Solar source regions of 3HE-rich particle events

Hydrogen alpha X-ray, and metric and kilometric radio data to examine the solar sources of energetic 3He-rich particle events observed near earth in association with impulsive 2 to 100 keV electron events were applied. Each 3He/electron event is associated with a kilometric type 3 burst belonging to a family of such bursts characterized by similar interplanetary propagation paths from the same solar active region. The 3He/electron events correlate very well with the interplanetary low frequency radio brightnesses of these events, but progressively worse with signatures from regions closer to the Sun. When H alpha brightnings can be associated with 3He/electron events, they have onsets coinciding to within 1 min of that of the associated metric type 3 burst but are often too small to be reported. The data are consistent with the earlier idea that many type 3 bursts, the 3He/electron events, are due to particle acceleration in the corona, well above the associated H alpha and X-ray flares

Fast drift kilometric radio bursts and solar proton events

Initial results of a comparative study of major fast drift kilometric bursts and solar proton events from Sep. 1978 to Feb. 1983 are presented. It was found that only about half of all intense, long duration ( 40 min above 500 sfu) 1 MHz bursts can be associated with F 20 MeV proton events. However, for the subset of such fast drift bursts accompanied by metric Type 2 and/or 4 activity (approximately 40% of the total), the degree of association with 20 MeV events is 80%. For the reverse association, it was found that proton events with J( 20 MeV) 0.01 1 pr cm(-2)s(-1)sr(-1)MeV(-1) were typically (approximately 80% of the time) preceded by intense 1 MHz bursts that exceeded the 500 sfu level for times 20 min (median duration approximately 35 min)

Edge helicons and repulsion of fundamental edge magnetoplasmons in the quantum Hall regime

A quasi-microscopic treatment of edge magnetoplasmons (EMP) is presented for very low temperatures and confining potentials smooth on the scale of the magnetic length $\ell_{0}$ but sufficiently steep at the edges such that Landau level (LL) flattening can be discarded. The profile of the unperturbed electron density is sharp and the dissipation taken into account comes only from electron intra-edge and intra-LL transitions due to scattering by acoustic phonons. For wide channels and filling factors $\nu =1$ and 2, there exist independent EMP modes spatially symmetric and antisymmetric with respect to the edge. Some of these modes, named edge helicons, can propagate nearly undamped even when the dissipation is strong. Their density profile changes qualitatively during propagation and is given by a rotation of a complex vector function. For $\nu >2,$ the Coulomb coupling between the LLs leads to a repulsion of the uncoupled fundamental LL modes: the new modes have very different group velocities and are nearly undamped. The theory accounts well for the experimentally observed plateau structure of the delay times as well as for the EMP's period and decay rates.Comment: 12 pages, 6 figure

Andreev reflection eigenvalue density in mesoscopic conductors

The energy-dependent Andreev reflection eigenvalues determine the transport properties of normal-superconducting systems. We evaluate the eigenvalue density to get an insight into formation of resonant electron-hole transport channels. The circuit-theory-like method developed can be applied to any generic mesoscopic conductor or combinations thereof. We present the results for experimentally relevant cases of a diffusive wire and a double tunnel junction.Comment: 5 pages, 3 figure