When Have All the Graduates Gone?: Internal Cross-State Migration of Graduates in Germany 1984-2004

The present paper analyzes the out-migration of graduates to other German states or abroad based on the German Socio-Economic Panel (GSOEP). Applying duration analysis, it can be shown that, ten years after graduation, slightly more than seventy percent of the graduates still live in the state where they completed their studies. The parametric estimation model identifies personal characteristics that are highly correlated with out-migration and permanent residence respectively. The analysis confirms previous results that nonresident students exhibit a significantly higher emigration propensity than resident fellows.Brain drain, nonresident students, fiscal externalities, duration analysis, GSOEP

Jet Results in pp and Pb-Pb Collisions at ALICE

We report results on jet production in pp and Pb-Pb collisions at the LHC from the ALICE collaboration. The jet cross section in pp collisions at $\sqrt{s}$=2.76 TeV is presented, as well as the charged particle jet production cross section and measurements of the jet fragmentation and jet shape in pp collisions at $\sqrt{s}$=7 TeV. NLO pQCD calculations and simulations from MC event generators agree well with the data. Measurements of jets with a resolution parameter $R$=0.2 in Pb-Pb collisions at $\sqrt{s}_{NN}$=2.76 TeV show a strong, momentum dependent suppression in central events with respect to pp collisions. The centrality dependence of the suppression of charged particle jets relative to peripheral events is presented. The ratio of jet spectra with $R$=0.2 and $R$=0.3 is found to be similar in pp and Pb-Pb events. The analysis of the semi-inclusive distribution of charged particle jets recoiling from a high-$p_{\rm T}$ trigger hadron allows an unbiased measurement of the jet structure for larger cone radii.Comment: 4 pages, 3 figures, to appear in the proceedings of the 48th Rencontres de Moriond, La Thuile, Italy, March 9-16, 201

Artificial time inconsistency as a remedy for the race to the bottom

A long-standing concern in the literature has been that household mobility implies a serious threat to the viability of redistributive taxation. This paper considers the effects of deferred integration of migrants into the redistributive system of the target country. In a model of symmetric regions, deferred integration introduces a time consistency problem into governments' tax plans which reduces a region's incentive to undercut other regions' tax rates and can bring tax competition to a halt. On the one hand, rich migrants cease to benefit from the lower tax rate in the current period. On the other hand, the region's promise of a continuing low rate in the future is not credible. We also explore the case where poor recipients of social assistance are mobile while the rich are immobile

Wie groß ist der Brain Drain innerhalb von Deutschland?

Der innerdeutsche Brain Drain, also die Abwanderung von Akademikern in andere Bundesländer, nimmt bisher ein moderates Ausmaß an. Zehn Jahre nach Studienabschluss sind noch knapp über 70 % aller Absolventen im Bundesland ihres Studiums ansässig. Die Daten zeigen ferner, dass ein Wegzug, wenn er überhaupt stattfindet, in den ersten Jahren direkt nach Studienabschluss vollzogen wird. Je länger ein Absolvent bereits vor Ort verblieben ist, umso geringer ist die Wahrscheinlichkeit für einen späteren Wegzug. Speziell für Ostdeutschland besteht Anlass zu verhaltenem Optimismus. Die ostdeutschen Bundesländer erweisen sich als attraktive Studienorte, die talentierte junge Menschen von außerhalb anziehen. Wenn es gelingt, diese zukünftigen Absolventen auch im Lande zu halten, kann dies das Humankapital vor Ort und damit das Wirtschaftswachstum erhöhen.Humankapital; Brain Drain; Wissenstransfer; Wirtschaftswachstum; Deutschland; Neue Bundesländer

2D layered transport properties from topological insulator Bi2_2Se3_3 single crystals and micro flakes

Low-field magnetotransport measurements of topological insulators such as Bi$_2$Se$_3$ are important for revealing the nature of topological surface states by quantum corrections to the conductivity, such as weak-antilocalization. Recently, a rich variety of high-field magnetotransport properties in the regime of high electron densities ($\sim10^{19}$ cm$^{-3}$) were reported, which can be related to additional two-dimensional layered conductivity, hampering the identification of the topological surface states. Here, we report that quantum corrections to the electronic conduction are dominated by the surface states for a semiconducting case, which can be analyzed by the Hikami-Larkin-Nagaoka model for two coupled surfaces in the case of strong spin-orbit interaction. However, in the metallic-like case this analysis fails and additional two-dimensional contributions need to be accounted for. Shubnikov-de Haas oscillations and quantized Hall resistance prove as strong indications for the two-dimensional layered metallic behavior. Temperature-dependent magnetotransport properties of high-quality Bi$_2$Se$_3$ single crystalline exfoliated macro and micro flakes are combined with high resolution transmission electron microscopy and energy-dispersive x-ray spectroscopy, confirming the structure and stoichiometry. Angle-resolved photoemission spectroscopy proves a single-Dirac-cone surface state and a well-defined bulk band gap in topological insulating state. Spatially resolved core-level photoelectron microscopy demonstrates the surface stability.Comment: Sci. Rep. (2016

Does My Stigma Look Big in This? Considering the acceptability and desirability in the inclusive design of technology products

This paper examines the relationship between stigmatic effects of design of technology products for the older and disabled and contextualizes this within wider social themes such as the functional, social, medical and technology models of disability. Inclusive design approaches are identified as unbiased methods for designing for the wider population that may accommodate the needs and desires of people with impairments, therefore reducing ’aesthetic stigma’. Two case studies illustrate stigmatic and nonstigmatic designs

W and Z boson production in p-Pb collisions at √sNN=5.02 TeV

The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at sNN−−−√=5.02 TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (−4.46 10 GeV/c are determined. The results are compared to theoretical calculations both with and without including the nuclear modification of the parton distribution functions. The W-boson production is also studied as a function of the collision centrality: the cross section of muons from W-boson decays is found to scale with the average number of binary nucleon-nucleon collisions within uncertainties