tailieunhanh - Research " A DISERTATION SUMMITTED TO THE SCHOOL OF EDUCAITON AND THE COMITEE ON GRADUATE STUDIES OF STANFORD IN PARTIAL FUFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY "

A DISERTATION SUMMITTED TO THE SCHOOL OF EDUCAITON AND THE COMITEE ON GRADUATE STUDIES OF STANFORD IN PARTIAL FUFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY | INCREASING RETURNS TO EDUCATION IN THE . 1967-97 - AN INFORMATION ECONOMY CONTEXT A DISSERTATION SUBMITTED TO THE SCHOOL OF EDUCATION AND THE COMMITTEE ON GRADUATE STUDIES OF STANFORD UNIVERSITY IN PARTIAL FUFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Xinchun Niu December 2002 UMI Number 3160848 INFORMATION TO USERS The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print colored or poor quality illustrations and photographs print bleed-through substandard margins and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send a complete manuscript and there are missing pages these will be noted. Also if unauthorized copyright material had to be removed a note will indicate the deletion. UMI UMI Microform 3160848 Copyright 2005 by ProQuest Information and Learning Company. All rights reserved. This microform edition is protected against unauthorized copying under Title 17 United States Code. ProQuest Information and Learning Company 300 North Zeeb Road . Box 1346 Ann Arbor Ml 48106-1346 Copyright by Xinchun Niu 2003 All Rights Researved .

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