BASIC ECONOMETRICS - UNJA

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BASIC . ECONOMETRICS . FOURTH EDITION. Damodar N. Gujarati United States Military Academy, West Point Boston Burr Ridge, IL Dubuque, IA Madison, WI New York San Francisco St. Louis Bangkok Bogota Caracas Kuala Lumpur Lisbon London Madrid Mexico City Milan Montreal New Delhi Santiago Seoul Singapore Sydney Taipei Toronto McGraw-Hill Higher Education 'EZ. A Division of The McGraw-Hill Companies BASIC ECONOMETRICS . Published by McGraw-HiII/lrwin, a business unit of The McGraw-Hili Companies, Inc. 1221 Avenue of the Americas, New York, NY, 10020. Copyright 2003, 1995, 1988, 1978, by The McGraw-Hili Companies, Inc. All rights reserved. No part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written consent of The McGraw-Hili Companies, Inc.

viii CONTENTS 1.4 REGRESSION VERSUS CAUSATION 22 1.5 REGRESSION VERSUS CORRELATION 23 1.6 TERMINOLOGYAND NOTATION 24 1.7 THE NATURE AND SOURCES OF DATA FOR ECONOMIC ANALYSIS 25 Types of Data 25 The Sources of Data 29 The Accuracy of Data 29 A Note on the Measurement Scales of Variables 30 1.8 SUMMARYAND …