This study examines the theoretical and practical implications of ranking teachers with a one-dimensional metric when teacher effectiveness varies across subjects or student types. We document the empirical failure of standard value-added assumptions of teacher input homogeneity, but demonstrate that previously suggested teacher firing policies still improve student welfare, although they resul...

Miguel Megevand, Matthew Anderson, Juhan Frank, Eric W. Hirschmann, Luis Lehner, Steven L. Liebling, Patrick M. Motl, and David Neilsen Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001, USA Department of Mathematics, Brigham Young University, Provo, Utah 84602, USA Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602,...

a Department of Physical Chemistry, University of Veszprém, H-8201 Veszprém, P.O. Box 158, Hungary. E-mail: [email protected] b Department of Zoology and Center for Neuroscience, Brigham Young University, Provo, Utah 84602. E-mail: [email protected] c Department of Molecular Biophysics and Physiology, Rush Medical College, Chicago, Illinois 60612. E-mail: [email protected] d Department of C...

© Lippincott Williams & Wilkins S1 From the aDepartment of Zoology, Brigham Young University, Provo, Utah, USA and bSAIC Frederick, Frederick Cancer Research & Development Center, National Cancer Institute, Frederick, Maryland, USA. Sponsorship: This work was supported by a James A. Shannon Award, an Alfred P. Sloan Award, and NIH grant #R01 HD34350-01A1. Correspondence to Dr Keith A. Crandall,...

In this paper we present SC-PROV an extension to PROVO and P-PLAN that is designed to capture the provenance of social computations.

Disintermediation, a major effect of the Internet economy, is both a threat and an opportunity in retail supply chains. This presentation discusses analysis of the impact of disintermediation in retail supply chains according to various dimensions of disintermediation, such as: source of the disintermediation, perceived motivation of the disintermediator, extent of the disintermediation, involv...