on an earlier version of this article and Pierre Provencher for his help in collecting the data. Correspondence concerning this article should be addressed to Robert J. Vallerand, Laboratoire de Recherche sur le Comportement Social, Departement de Psychologie, University du Quebec a Montreal, C.P. 8888, Station

that are economically close are larger than spillovers between industries that are economically distant. (JEL J30, L60, 040) Human capital externalities may arise if the presence of educated workers makes other workers more productive. Alfred Marshall (1890) is among the first to recognize that social interactions

If the reader will forgive a tired clich, Ian Stevenson and I go way back. In 1971 Ian gave me my first job in parapsychology, a Research Associate position at what was then called the Division of Parapsychology at the University of Virginia Medical Center. In addition to Ian, my colleagues were

Abstract The background of Stevenson's story is viewed as a stylized model of participation in a financial pyramid. You are invited to take part in a dubious activity. If you refuse, you neither gain nor lose anything. If you accept, you will gain if you are able to find somebody who

. Interference effects between different final state configurations of B s ! D + s D \Gamma s , J=/ OE determine the Wolfenstein parameter j from untagged data samples, or -- if one uses jV ub j=jV cb j as an additional input -- the notoriously difficult to measure CKM angle fl. Another determination of fl

In this poster we report on work in progress that attempts to parameterize star formation and energy feedback to the interstellar medium using simple models. We compare three different models for feedback, with each being motivated on different grounds. We study the performance of the algorithms on isolated disc galaxies as well as in hierarchical simulations. To ascertain the the limits of the parameter space we use a high star formation rate (SFR) normalization which leads to SFR's significantly higher than would be expected. Our preliminary results show that different models can yield drastically different results, ranging from having no effect to severe disruption of discs. Even with feedback, cosmological simulations form discs that show a sudden cut-off in density at comparatively small radii. However, interior to the cut-off the rotation curves for these discs are moderately plausible, but firm conclusions cannot be drawn due to the low resolution and numerically induced angular...

1995-2001 Member and Secretary-Treasurer (1999-2001) of the Governing Board of the Urban Affairs Association. 1995-2001 Member, Editorial Board of the Journal of Urban Affairs.

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THi Royal College of Physicians in Edinburgh was founded in 1681. At the time of its foundation there were twenty-one founder fellows. Among the original fellows were Robert Sibbald, already a distinguished physician and man of science; Thomas Burnet of Crimond, Physician to the King in Scotland

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