...relationship, eg: price and quantity demanded; time spent studying and exam results obtained; gardai (police) on duty and number of crimes as well as alcohol consumed and sensibility! Regression and correlation analysis is useful because it allows us predict the value of one variable from the knowledge of another. The said relationship can be positive or negative. One first step in establishing if any of these relationships exist is to draw a scatter graph. A Scatter plot or diagram is a chart that portrays the relationship between the two variables. It is the usual first step in correlation analysis * The Dependent variable is the variable being predicted or estimated. * The Independent variable provides the basis for estimation. It is the predictor variable. Correlation Analysis From a scatter plot we have a first picture of the data. The next step is to calculate a measure which can assess the strength of that relationship. The correlation coefficient r which represents correlation in a sample is calculated as: r = n Σxy- ΣxΣy √ [n Σx2 – (Σx)2][nΣy2 – (Σy)2] The correlation coefficient r was first identified by Karl Pearson around 1900 and as such the correlation coefficient is also often known as the Pearson coefficient or Product Moment Correlation coefficient. The correlation coefficient is such that its value must lie between (-1 +1). A correlation coefficient of (-1 or +1)...
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...DISCOVERING ONE’S TALENT: LEARNING FROM ACADEMIC SPECIALIZATION author OFER MALAMUD* The author examines an exogenous difference in the timing of academic Abstract specialization within the British system of higher education to test whether education yields information about one’s match quality in different fields of study. In distinguishing between systems requiring early and late specialization, he predicts the likelihood of an individual switching to an occupation unrelated to one’s field of study. If higher education serves mainly to provide specific skills, the model predicts more switching in a system requiring late specialization since the cost of switching is lower in terms of foregone skills. Using the Universities Statistical Record from 1972 to 1993 and the 1980 National Survey of Graduates and Diplomates, he finds that individuals who specialize early, as in the case of England, are more likely to switch to an unrelated occupation, implying that the benefits to increased match quality are sufficiently large to outweigh the greater loss in skills from specializing early. With regard to instruction, economists have made substantial progress in specifying and identifying the economic value of higher education, as it increases the value productivity of human agents as workers . . . the much neglected activity is that of discovering talent. It, too, can be approached by treating it as a process which provides students with opportunities to discover whether they have...
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...A R Munich Personal RePEc Archive Factors Affecting Students’ Performance Nasri Harb and Ahmed El-Shaarawi United Arab Emirates University July 2006 Online at http://mpra.ub.uni-muenchen.de/13621/ MPRA Paper No. 13621, posted 26. February 2009 04:55 UTC Factors Affecting Students' Performance Nasri Harb1* Department of Economics College of Business & Economics United Arab Emirates University P.O. Box 17555 Al-Ain, UAE Tel.: 971 3 7133228 Fax: 971 3 7624384 E-mail: nasri.harb@uaeu.ac.ae Ahmed El-Shaarawi* Department of Economics College of Business & Economics United Arab Emirates University P.O. Box 17555 Al-Ain, UAE Tel.: 971 3 7133261 Fax: 971 3 7624384 E-mail: ashaarawi@uaeu.ac.ae 16 July 2006 1 Corresponding author * The authors would like to express their sincere appreciation to the Research Affairs at the United Arab Emirates University for the financial support for this project under fund grant # 01-02-4-11/04. The authors would also like to express their gratitude to all faculty members at the College of Business and Economics at the United Arab Emirates University and to the following students for helping with data collection and entry: Mohammad Abou Haliga, Mahmoud Adde, Jimaleh Ahmed, Duaa Shaikh Ali, Dalia Al-Iriani, Hiba Al-Khadra, Nina Greeshkeeva, Lamis Hafez, Baina Madvenova, Dhuha Musleh, Tahseen Rajoub, and Khabab Sissanga. Factors Affecting Students' Performance Determinants of students' performance...
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...MP A R Munich Personal RePEc Archive Factors Affecting Students’ Performance Nasri Harb and Ahmed El-Shaarawi United Arab Emirates University July 2006 Online at http://mpra.ub.uni-muenchen.de/13621/ MPRA Paper No. 13621, posted 26. February 2009 04:55 UTC Factors Affecting Students' Performance Nasri Harb1* Department of Economics College of Business & Economics United Arab Emirates University P.O. Box 17555 Al-Ain, UAE Tel.: 971 3 7133228 Fax: 971 3 7624384 E-mail: nasri.harb@uaeu.ac.ae Ahmed El-Shaarawi* Department of Economics College of Business & Economics United Arab Emirates University P.O. Box 17555 Al-Ain, UAE Tel.: 971 3 7133261 Fax: 971 3 7624384 E-mail: ashaarawi@uaeu.ac.ae 16 July 2006 1 Corresponding author * The authors would like to express their sincere appreciation to the Research Affairs at the United Arab Emirates University for the financial support for this project under fund grant # 01-02-4-11/04. The authors would also like to express their gratitude to all faculty members at the College of Business and Economics at the United Arab Emirates University and to the following students for helping with data collection and entry: Mohammad Abou Haliga, Mahmoud Adde, Jimaleh Ahmed, Duaa Shaikh Ali, Dalia Al-Iriani, Hiba Al-Khadra, Nina Greeshkeeva, Lamis Hafez, Baina Madvenova, Dhuha Musleh, Tahseen Rajoub, and Khabab Sissanga. Factors Affecting Students' Performance Determinants of students' performance have been the subject...
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...A Guide to Modern Econometrics 2nd edition Marno Verbeek Erasmus University Rotterdam A Guide to Modern Econometrics A Guide to Modern Econometrics 2nd edition Marno Verbeek Erasmus University Rotterdam 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 reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except under the terms of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London W1T 4LP, UK, without the permission in writing of the Publisher. Requests to the Publisher should be addressed to the Permissions Department, John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England, or emailed to permreq@wiley.co.uk, or faxed to (+44) 1243 770620. This publication is designed to provide accurate and authoritative information in regard to the subject matter covered. It is sold on the understanding that the Publisher is not engaged in rendering professional services. If professional advice or other expert assistance is required,...
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...Mostly Harmless Econometrics: An Empiricist’ Companion s Joshua D. Angrist Massachusetts Institute of Technology Jörn-Ste¤en Pischke The London School of Economics March 2008 ii Contents Preface Acknowledgments Organization of this Book xi xiii xv I Introduction 1 3 9 10 12 16 1 Questions about Questions 2 The Experimental Ideal 2.1 2.2 2.3 The Selection Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Random Assignment Solves the Selection Problem . . . . . . . . . . . . . . . . . . . . . . . . Regression Analysis of Experiments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II The Core 19 21 22 23 26 30 36 38 38 44 47 51 51 3 Making Regression Make Sense 3.1 Regression Fundamentals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1.1 3.1.2 3.1.3 3.1.4 3.2 Economic Relationships and the Conditional Expectation Function . . . . . . . . . . . Linear Regression and the CEF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Asymptotic OLS Inference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Saturated Models, Main E¤ects, and Other Regression Talk . . . . . . . . . . . . . . . Regression and Causality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.1 3.2.2 3.2.3 The Conditional Independence Assumption . . . . . . . . . . . . . . . . . . . . . . . . The Omitted Variables Bias Formula . ....
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...MINISTRY OF POWER AND MINERAL RESOURCES OF THE REPUBLIC OF KAZAKHSTAN APPROVED by Prikaz No 189 of the Minister of Power and Mineral Resources of the Republic of Kazakhstan, as of August 26, 2004.) REGULATIONS ON ELECTRICAL INSTALLATIONS OF THE REPUBLIC OF KAZAKHSTAN (PUE) Astana, 2003 TABLE OF CONTENTS SECTION 1: GENERAL REGULATIONS 10 CHAPTER 1.1: GENERAL 10 SCOPE, TERMS AND DEFINITIONS 10 GENERAL REGULATIONS FOR INSTALLATION OF ELECTRICAL EQUIPMENT 11 CONNECTION OF ELECTRICAL INSTALLATIONS TO THE POWER STATIONS 13 COMMISSIONING OF ELECTRICAL INSTALLATIONS 14 CHAPTER 1.2 POWER SUPPLY AND POWER SYSTEMS 14 SCOPE, DEFINITIONS 14 GENERAL REQUIREMENTS 14 CATEGORIES OF POWER CONSUMING DEVICES AND RELIABILITY OF POWER SUPPLY 15 VOLTAGE LEVELS AND CONTROLS, REACTIVE POWER COMPENSATION 16 CHAPTER 1.3 SELECTION OF CONDUCTORS: HEATING, CURRENT DENSITY AND CORONA DISCHARGE CONDITIONS 16 SCOPE 16 SELECTION OF CROSS-SECTION OF CONDUCTORS: HEATING 17 MAXUIMUM CONTINUOUS CURRENTS FOR WIRES, CORDS AND CABLES IN RUBBER OR PLASTIC INSULATION 18 MAXIMUM CONTINUOUS CURRENTS FOR CABLES IN IMPREGNATED PAPER INSULATION 22 MAXIMUM CONTINUOUS CURRENTS FOR BARE WIRES...
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...Eckel 主页:ht t p: //w w Br uceEckel . com w. 编译:Tr ans Bot 主页:ht t p: //m ber . net eas e. com r ans bot em /~t 致谢 --献给那些直到现在仍在孜孜不倦创造下一代计算机语言的人们! 指导您利用万维网的语言进行面向对象的程序设计 完整的正文、更新内容及程序代码可从 ht t p: //w w br uceeckel . com w. 下载 从 Java 的基本语法到它最高级的特性(网络编程、高级面向对象能力、多线程),《T hi nki ng I n Java》都 能对您有所裨益。Br uce Eckel 优美的行文以及短小、精悍的程序示例有助于您理解含义模糊的概念。 面向初学者和某种程度的专家 教授 Java 语言,而不是与平台有关的理论 覆盖 Java 1. 2 的大多数重要方面:Sw ng和新集合 i 系统讲述 Java 的高级理论:网络编程、多线程处理、虚拟机性能以及同非 Java 代码的连接 320 个有用的 Java 程序,15000 行以上代码 解释面向对象基本理论,从继承到设计方案 来自与众不同的获奖作者 Br uce Eckel 可通过万维网免费索取源码和持续更新的本书电子版 从 w w Br uceEckel . com w. 获得配套 C (含 15 小时以上的合成语音授课) D 读者如是说:“最好的 Java 参考书⋯⋯绝对让人震惊”;“购买 Java 参考书最明智的选择”;“我见过的 最棒的编程指南”。 Br uce Eckel 也是《T hi nki ng i n C ++》的作者,该书曾获 1995 年 Sof t w eD ar evel opm Jol t A ar d最佳书 ent w 籍大奖。作为一名有 20 经验的编程专家,曾教授过世界上许多地区的人进行对象编程。最开始涉及的领域是 C ++,现在也进军 Java。他是 C ++标准协会有表决权的成员之一,曾就面向对象程序设计这一主题写过其他 5 本书,发表过 150 多篇文章,并是多家计算机杂志的专栏作家,其中包括《W Techni ques 》的 Java 专栏。 eb 曾出席过 C ++和 Java 的“软件开发者会议”,并分获“应用物理”与“计算机工程”的学士和硕士学位。 读者的心声 比我看过的 Java 书好多了⋯⋯非常全面,举例都恰到好处,显得颇具“智慧”。和其他许多 Java 书 籍相比,我觉得它更成熟、连贯、更有说服力、更严谨。总之,写得非常好,肯定是一本学习 Java 的好书。(A ol y Vor obey,Techni onUni ver s i t y,Hai f a,以色列)。 nat 是我见过的最好的编程指南,对任何语言都不外如是。(Joaki m z i egl er ,FI X系统管理员) 感谢你写出如此优秀的一本 Java 参考书。(D . G n Pi l l ay,Regi s t r ar ,Ki ng Edw d VI I r avi ar Hos pi t al ,南非) 再次感谢您这本令人震惊的书。我以前真的有点儿不知所从的感觉(因为不是 C程序员),但你的书 浅显易懂,使我能很快掌握 Java——差不多就是阅读的速度吧。能从头掌握基本原理和概念的感觉 真好,再也不用通过不断的试验和出错来建立概念模型了。希望不久能有机会参加您的讲座。 (Randal l R. Haw ey,A om i on Techni ci...
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...Bachelor of Arts in Business Economics STUDENT’S HANDBOOK 2011/2012 Lazarski University Warsaw, June 2011 1 Lazarski School of Commerce and Law Student’s Handbook- Bachelor of Arts in Business Economics Content Page 4 6 8 13 15 15 15 17 17 18 19 21 23 24 26 28 30 32 34 35 37 39 41 43 44 46 48 49 50 51 53 54 55 57 58 59 60 62 63 63 64 66 67 69 72 74 75 76 77 79 80 82 The Programme The Degree Assessment Quality Assurance Admission Procedures Erasmus Study in BABE Programme Administrative Issues Course Descriptors Mathematics Introductory Microeconomics Introduction to Sociology Current Issues of the European and Global Economy Academic Writing Introduction into Business Introductory Macroeconomics Introduction into Economic Analysis Economics of Integration Information Technology Intermediate Microeconomics Issues in Macroeconomic Policy Mathematical Economics Statistics Regional Economics Introduction to Strategic Management Banking and Finance International Business Law Research Proseminar Accounting Managerial Economics International Economics Intermediate Macroeconomics Econometrics Research Methods Social Policy Game Theory Public Finance Investment Analysis BA Seminar Electives Financial Accounting Monetary Theory and Policy - The Impact of Global Crisis Principles of Marketing The World Economy – Retrospective View The Small and Medium-Sized Enterprises (SME) Sector Economics of Telecommunication Demography and Economics of Contemporary European Migration Personal...
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...Manual for the GMAT*Exam version 8.0 All rights reserved. No part of this manual may be reproduced for distribution to a third party in any form or by any means, electronic or mechanical, including photocopying, recording, or any information retrieval system, without the prior consent of the publisher, The Princeton Review. This Manual is for the exclusive use of Princeton Review course students and is not legal for resale. GMAT is a registered trademark of the Graduate Management Admission Council. The Princeton Review is not affiliated with Princeton University or the Graduate Management Admission Council. Permission to reprint this material does not constitute review or endorsement by the Educational Testing Service or the Graduate Management Admission Council of this publication as a whole or of any other sample questions or testing information it may contain. Copyright © 2003 by Princeton Review Management, L.L.C. All Rights Reserved. 800.2Review/ www.princetonreview.com ACKNOWLEDGMENTS Thanks to the following for their many contributions to this course manual: Tariq Ahmed, Kristen Azzara, Shon Bayer, John Bergdahl, Marie Dente, Russ Dombrow, Tricia Dublin, Dan Edmonds, Julian Fleisher, Paul Foglino, Alex Freer, John Fulmer, Joel Haber, Effie Hadjiioannou, Sarah Kruchko, Mary Juliano, Jeff Leistner, Sue Lim, Michael Lopez, Stephanie Martin, Chas Mastin, Elizabeth Miller, Colin Mysliwiec, Magda Pecsenye, Dave Ragsdale, “GMAT” Jack Schieffer...
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...THIRD EDITI ----- --·-- --·-- - - -- - O N -- SU PP LY CH AI N MA NA GE ME NT Stra tegy , Plan ning , and Ope ratio n Sunil Chopra Kellogg Schoo l of Manag ement Northwestern University Peter Meindl Stanfo rd University --------Prentice I-I all Uppe r Saddl e River , New Jersey ·--· PEAR SON -- · - · - - - "ibrary of Congress Cataloging-in-Publication Data :::hopra, Sunil Supply chain management: strategy, planning, and operation I Sunil Chopra, >eter Meind!.-3rd ed. p. em. Includes bibliographical references and index. ISBN: 0-13-208608-5 1. Marketing channels-Managemen t. 2. Delivery of goods-Management. i. Physical distribution of goods-Management. 4. Customer servicesvfanagement. 5. Industrial procurement. 6. Materials management. I. vfeindl, Peter II. Title. HF5415.13.C533 2007 658.7-dc22 2006004948 \VP/Executive Editor: Mark Pfaltzgraff ii:ditorial Director: Jeff Shelstad ;enior Project Manager: Alana Bradley E:ditorial Assistant: Barbara Witmer Vledia Product Development Manager: Nancy Welcher \VP/Executive Marketing Manager: Debbie Clare Vlarketing Assistant: Joanna Sabella ;enior Managing Editor (Production): Cynthia Regan flroduction Editor: Melissa Feimer flermissions Supervisor: Charles Morris Vlanufacturing Buyer: Michelle Klein Vlanager, Print Production: Christy Mahon Composition/Full-Service Project Management: Karen Ettinger, TechBooks, Inc. flrinter/Binder: Hamilton Printing Company Inc. fypeface: 10/12 Times Ten Roman :::redits...
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...THIRD EDITI ----- --·-- --·-- - - -- - O N -- SU PP LY CH AI N MA NA GE ME NT Stra tegy , Plan ning , and Ope ratio n Sunil Chopra Kellogg Schoo l of Manag ement Northwestern University Peter Meindl Stanfo rd University PEAR SON --------Prentice I-I all Uppe r Saddl e River , New Jersey ·--· -- · - · - - - "ibrary of Congress Cataloging-in-Publication Data :::hopra, Sunil Supply chain management: strategy, planning, and operation I Sunil Chopra, >eter Meind!.-3rd ed. p. em. Includes bibliographical references and index. ISBN: 0-13-208608-5 1. Marketing channels-Managemen t. 2. Delivery of goods-Management. i. Physical distribution of goods-Management. 4. Customer servicesvfanagement. 5. Industrial procurement. 6. Materials management. I. vfeindl, Peter II. Title. HF5415.13.C533 2007 658.7-dc22 2006004948 \VP/Executive Editor: Mark Pfaltzgraff ii:ditorial Director: Jeff Shelstad ;enior Project Manager: Alana Bradley E:ditorial Assistant: Barbara Witmer Vledia Product Development Manager: Nancy Welcher \VP/Executive Marketing Manager: Debbie Clare Vlarketing Assistant: Joanna Sabella ;enior Managing Editor (Production): Cynthia Regan flroduction Editor: Melissa Feimer flermissions Supervisor: Charles Morris Vlanufacturing Buyer: Michelle Klein Vlanager, Print Production: Christy Mahon Composition/Full-Service Project Management: Karen Ettinger, TechBooks, Inc. flrinter/Binder: Hamilton Printing Company Inc. fypeface:...
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...Aldol Reactions. Carboxylic Acids and Their Derivatives: Nucleophilic Substitution at the Acyl Carbon. Amines. Carbohydrates. Lipids. Answers to Selected Problems. Glossary. Index. Solomons/Advices ADVICES FOR STUDYING ORGANIC CHEMISTRY 1. Keep up with your studying day to day –– never let yourself get behind, or better yet, be a little ahead of your instructor. Organic chemistry is a course in which one idea almost always builds on another that has gone before. 2. Study materials in small units, and be sure that you understand each new section before you go on to the next. Because of the cumulative nature of organic chemistry, your studying will be much more effective if you take each new idea as it comes and try to understand it completely before you move onto the nest concept. 3. Work all of the in-chapter and assigned problems. 4. Write when you study. over and over again. Write the reactions, mechanisms, structures, and so on, You need to know the material so thoroughly that you can This level of understanding comes to most of us Only by writing the explain it to someone else. (those of us without photographic memories) through writing. reaction mechanisms do we pay sufficient attention to their details: 1) which atoms are connected to which atoms. 2) which bonds break in...
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...GENDER RELATIONS AND DIVORCE AMONG THE ELITES A CASE STUDY OF GULU MUNICIPALITY BY HENRY EGYEYU ABSTRACT This study is aimed at establishing the relationship between Gender relations and Divorce such that possible approaches are sought to mitigate them. The study set out to assess the sex-differentiated impact of divorce, which are normally part of family life. These include changes in residences by children to accommodate changes in their relationships with their parents, changes in parental employment, remarriage, and stepfamily formation still; most children suffer from declining father. The study found that such changes affect individuals within households differently. Some lose while others gain. Women, however, have been singled out as the most affected. Changes in marriage and divorce laws and policies have further affected individual household members in different ways that is, children live in many different family forms, but the most common pattern is that they live with their mothers and have less contact with their fathers. As a result, a common alteration that children are forced to make is an adjustment to life without their father at home. Most children share time between the mother's household and the father's household, and families are creative in finding ways for children to maintain meaningful relationships with both parents involvement after divorce The conflicts over ownership of...
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...visit the Science and Technology Books website at www.elsevierdirect.com/rights for further information Notice No responsibility is assumed by the publisher for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, products, instructions or ideas contained in the material herein. British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library Library of Congress Cataloging-in-Publication Data A catalog record for this book is available from the Library of Congress ISBN: 978-0-08-055450-1 (Volume 3) ISBN: 978-0-08-087929-1 (Volumes 1, 2 and 3) For information on all Elsevier publications visit our website at www.elsevierdirect.com Printed and bound in Hungary 09 10 11 12 13 10 9 8 7 6 5 4 3 2 1 Contributors to Volume 3 Robert H. Chenhall Mark A. Covaleski Antonio Davila Mark W. Dirsmith David A....
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