J O I N T C E N T E R AEI-BROOKINGS JOINT CENTER FOR REGULATORY STUDIES The Antitrust Economics of Two-sided Markets David S. Evans Related Publication 02-13 September 2002 David Evans is Senior Vice President, NERA Economic Consulting. The author is extremely grateful to Howard Chang, George Priest, Jean-Charles Rochet, Richard Schmalensee, and Jean Tirole for many helpful comments and suggestions and Irina Danilkina, Anne Layne-Farrar, Daniel Garcia Swartz, Bryan Martin-Keating, Nese Nasif
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THE FIRST FILIPINO Republie of the Philippines Department of Education & Culture NATIONAL HISTORICAL COMMISSION Manila FERDINAND E. MARCOS President Republic of the Philippines JUAN L. MANUEL Secretary of Education & Culture ESTEBAN A. DE OCAMPO Chairman DOMINGO ABELLA Member HORACIO DE LA COSTA, S. J. Member GODOFREDO L. ALCASID Ex-Oficio Member TEODORO A. AGONCILLO Member EMILIO AGUILAR CRUZ Member SERAFIN D. QUIASON Ex-Oficio Member FLORDELIZA K. MILITANTE Exccutive Director RAMON G. CONCEPCION
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第一章 线性规划 §1 线性规划 在人们的生产实践中, 经常会遇到如何利用现有资源来安排生产, 以取得最大经济 效益的问题。此类问题构成了运筹学的一个重要分支—数学规划,而线性规划(Linear Programming 简记 LP)则是数学规划的一个重要分支。自从 1947 年 G. B. Dantzig 提出 求解线性规划的单纯形方法以来, 线性规划在理论上趋向成熟, 在实用中日益广泛与深 入。 特别是在计算机能处理成千上万个约束条件和决策变量的线性规划问题之后, 线性 规划的适用领域更为广泛了,已成为现代管理中经常采用的基本方法之一。 1.1 线性规划的实例与定义 例 1 某机床厂生产甲、 乙两种机床, 每台销售后的利润分别为 4000 元与 3000 元。 生产甲机床需用 A、B 机器加工,加工时间分别为每台 2 小时和 1 小时;生产乙机床 需用 A、B、C 三种机器加工, 加工时间为每台各一小时。 若每天可用于加工的机器时 数分别为 A 机器 10 小时、 B 机器 8 小时和 C 机器 7 小时,问该厂应生产甲、乙机床各
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BONPLANDIA Arachis (Leguminosae) A. Krapovickas and W.C. Gregory, 16 (Supl.): 1-205. 2007 BONPLANDIA 16 (SUPL.): 1-205. 2007 TAXONOMY OF THE GENUS ARACHIS (LEGUMINOSAE) by Antonio Krapovickas1 and Walton C. Gregory2 Translated by David E. Williams3 and Charles E. Simpson4 1 2 Director, Instituto de Botánica del Nordeste, Casilla de Correo 209, 3400 Corrientes, Argentina. Deceased. Formerly WNR Professor of Crop Science, Emeritus, North Carolina State University, USA. 3 International
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\nvt'$ mvmj of thf "i'emW^ le$t ^mH, THE DISCOURSES OF EPICTETUS. WITH THE ENCHEIRIDION AND FRAGMENTS. TRANSLATED, AND A WITH VIEW NOTES, OF HIS A LIFE OF EPICTETUS, PUILO80PUY. By GEOKGE long, M.A. NEW YORK: A. L. BURT, PUBLISHER, EPICTETUS. Very that he little was a is known* native of and of the life of in Epictetus. Phrygia, the in Maeander the a it is saia Hierapolis
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GMO MYTHS AND TRUTHS An evidence-based examination of the claims made for the safety and efficacy of genetically modified crops Michael Antoniou Claire Robinson John Fagan June 2012 GMO Myths and Truths An evidence-based examination of the claims made for the safety and efficacy of genetically modified crops Version 1.3 by Michael Antoniou Claire Robinson John Fagan © Earth Open Source www.earthopensource.org 2nd Floor 145–157, St John Street, London EC1V 4PY, United Kingdom Contact email:
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Physical Chemistry Understanding our Chemical World Physical Chemistry Understanding our Chemical World Paul Monk Manchester Metropolitan University, UK Copyright 2004 John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England Telephone (+44) 1243 779777 Email (for orders and customer service enquiries): cs-books@wiley.co.uk Visit our Home Page on www.wileyeurope.com or www.wiley.com All Rights Reserved. No part of this publication may be
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Sixth Edition INTERNATIONAL FINANCIAL MANAGEMENT Cheol S. Eun Bruce G. Resnick International Financial Management Sixth Edition The McGraw-Hill/Irwin Series in Finance, Insurance, and Real Estate Stephen A. Ross Franco Modigliani Professor of Finance and Economics Sloan School of Management Massachusetts Institute of Technology Consulting Editor FINANCIAL MANAGEMENT Adair Excel Applications for Corporate Finance First Edition Block, Hirt, and Danielsen Foundations of Financial
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