2,632 research outputs found

    Who Prices Locally? Survey Evidence of Swiss Exporters

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    Survey information on Swiss exporters is used to test the hypothesis that firm-specific factors, in particular firm size, are important determinants of pricing-to-market (PTM). The survey asked exporters whether they set dif- ferent prices across markets and, if so, whether price segmentation occurred because of pricing conditions in the local market or other factors. The empirical analysis is based on a probit model that regresses a binary-choice variable of PTM on firm size and other control variables. The main empirical finding is that firm size and PTM are positively and significantly correlated. A further result is that while firms whose main export market is in the Euro area are less likely to engage in PTM, firm size plays a bigger role for them. These results are robust across different PTM classifications, regression specifications, export destinations, and industrial sectors.Pricing to markets, local currency pricing, .rm size

    The Influence Of Attitudes And Experience On The Owner-Manager's Intentions Towards Cooperation

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    The goal of this paper is to shed some light on how attitudes of owner-managers and entrepreneurs respectively influence a company’s cooperative behaviour. The focus is hereby on how the decision-makers’ attitudes toward the possible reasons for setting up a cooperation influence the intended intensity of the cooperative arrangement. This research question is investigated on the basis of empirical data gathered from Mexican SME. As a result, both motivations for cooperation and experiences with cooperative arrangements in the past seem to influence the intended intensity of future activities

    Validity of Stokes-Einstein Relation in Soft Colloids up to the Glass Transition

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    We investigate the dynamics of kinetically frozen block copolymer micelles of different softness across a wide range of particle concentrations, from the fluid to the onset of glassy behavior, through a combination of rheology, dynamic light scattering and pulsed field gradient NMR spectroscopy. We additionally perform Brownian dynamics simulations based on an ultrasoft coarse-grained potential, which are found to be in quantitative agreement with experiments, capturing even the very details of dynamic structure factors S(Q, t) on approaching the glass transition. We provide evidence that for these systems the Stokes-Einstein relation holds up to the glass transition; given that it is violated for dense suspensions of hard colloids, our findings suggest that its validity is an intriguing signature of ultrasoft interactions.Comment: 5 pages, 4 figures, Supplementary Information, Accepted to Physical Review Letters (PRL) (2015

    Bretter, die die Welt bedeuten: Rezension zu "Comparative Approaches to Informal Housing Around the Globe" von Udo Grashoff (Hg.)

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    Udo Grashoff (Hg.): Comparative Approaches to Informal Housing Around the Globe. London: UCL Press 2020. 978178735523

    Reduction of Thermomechanical Stress Using Electrically Conductive Adhesives

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    We compare the thermomechanical stresses in solar cell interconnections based on electrically conductive adhesives (ECA) with soldered joints by using bending experiments and finite element analysis (FEA). Additionally, the influence of an increasing number of busbars is studied. The FEA is validated by measuring the bending of cell strips after cooling down from a single-sided interconnection process. The material parameters are determined by tensile tests, microscopy and nanoindentation. The comparison of ECA and soldering shows that an elastomer with a Young's modulus of below 0.5 GPa is capable of reducing the thermomechanical stress effectively resulting in, approximately, a mean tensile stress in the ECA of 5 MPa, 110 MPa in the ribbon, and a maximum compressive stress in the silicon of 75 MPa. Increasing the number of busbars from three to five leads to a reduction in compressive stresses in the silicon and a slight increase of the peak tensile stress in the busbars

    Operational Modal Analysis on laminated glass beams

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    Laminated glass is a sandwich element consisting of two or more glass sheets, with one or more interlayers of polyvinyl butyral (PVB). The dynamic response of laminated glass beams and plates can be predicted using analytical or numerical models in which the glass and the PVB are usually modelled as linear-elastic and linear viscoelastic materials, respectively. In this work the dynamic behavior of laminated glass beams are predicted using a finite element model and the analytical model of Ross-Kerwin-Ungar. The numerical and analytical results are compared with those obtained by operational modal analysis performed at different temperatures
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