We study a symmetric independent private values auction model where the revenue-maximizing seller faces a cost cn of attracting n bidders to the auction. If the distribution of valuations possesses an increasing failure rate (IFR), the seller overinvests in attracting bidders compared to the social optimum. Conversely, if the distribution is DFR, the seller underinvests compared to the social o...

Institut National de la Santé et de la Recherche Médicale (INSERM) U517, Institut Fédératif de Recherche (IFR) 100, University of Burgundy; Ecole Pratique des Hautes Etudes (EPHE), Faculty of Medicine, 7 boulevard Jeanne d’Arc, 21079 Dijon cedex, France; Centre Hospitalier Universitaire, BP1542, 21034 Dijon cedex, France; INSERM U567, Institut Cochin; Department of Hematology, Cochin Hospital, ...

An easy consequence of this is that a left Noetherian (respectively left Artinian) ring which is finitely generated over its center is right Noetherian (respectively right Artinian). Theorem 1 follows easily from Theorem 2, which gives a partial converse to the following standard fact: IfR C S are rings, and ifQ is an injective R-module, then Hom~(S, Q) is an injective S-module (this follows, f...

1Institut National de la Santé et de la Recherche Médicale (INSERM) U517, Dijon, France; 2Institut Fédératif de Recherche (IFR) 100, University of Burgundy, Dijon, France; 3Ecole Pratique des Hautes Etudes (EPHE), Faculty of Medicine, Dijon cedex, France; 4Centre Hospitalier Universitaire, Dijon cedex, France; 5INSERM U567, Institut Cochin, Paris, France; 6Department of Hematology, Cochin Hospi...

MRC Anatomical Neuropharmacology Unit, Department of Pharmacology, Oxford University, Oxford OX1 3TH, UK, CNRS UMR 6150, IFR Jean Roche, Faculty of Medicine Nord, University Aix-Marseille II, France, Department of Basic Sciences, Faculty of Medicine, University of Crete, Heraklion, Greece, Institute of Applied and Computational Mathematics, Foundation of Research and Technology, Hellas, Herakli...

1 Department of Neurology and Movement Disorders, EA2683, France 2 Department of Neuroradiology, IFR 114, IMPRT, Hôpital R. Salengro, CHU, 59037 Lille, France 3 Neurobiology Unit, Centre de Biologie Pathologie, CHRU, 59037 Lille, France 4 Northern Genetics Service, Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK 5 Institute of Human Genetics, Newcastle University, Internationa...

* Antiviral Immunity, Biotherapy and Vaccine Unit, Infection and Epidemiology Department, Institut Pasteur, 28 rue du Dr. Roux, 75015 Paris † INSERM U668, F-75015 Paris, France ‡ INSERM U768, Paris F-75015; Université René Descartes-Paris 5, Paris F-75006, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75015 Paris, France § UMR INSERM U866, F-21079 Dijon, France; IFR-100 University of Burgu...

Juha JÄÄLINOJA*, Joni YLÖSTALO*†, William BECKETT†1, David J. S. HULMES‡ and Leena ALA-KOKKO*§2 *Collagen Research Unit, Biocenter and Department of Medical Biochemistry and Molecular Biology, Oulu University, P.O. Box 5000, 90014 Oulu, Finland, †Center for Gene Therapy, Tulane University Health Sciences Center, New Orleans, LA, U.S.A., ‡Institut de Biologie et Chimie des Protéines, CNRS/Univer...

Laboratoire de Physiopathologie et Pharmacologie Cardiovasculaires Expérimentales, EA 2979, IFR Santé-STIC, Facultés de Médecine et Pharmacie, 7 bd Jeanne d’Arc, 21000 Dijon, France (C.R., S.D.C., J.C.J, M.Z., Y.C., L.R., C.V.); Department of Pharmacology, Physiology and Physiopathology; Faculty of Pharmacy, University of Medicine and Pharmacy, Cluj-Napoca, Romania (S.G.); Département de nutrit...