20868 THE WORLD BANK ECONOMIC REVIEW Volume 14 January 2000 Number 1 A SYMPOSIUM ON TRADE AND TECHNOLOGY International Knowledge Flows and Economic Performance: A Review of the Evidence Giorgio Barba Navaretti and David G. Tarr Do Trade Patterns and Technology Flows Affect Productivity Growth? Wolfgang Keller Foreign Investment and Productivity Growth in Czech Enterprises Simeon Djankov and Bernard Hoekman Productivity and Turnover in the Export Market: Micro-Level Evidence from Taiwan (China) and the Republic of Korea Bee Yan Aw, Sukkyun Chung, and Mark J. Roberts Vintage Technologies and Skill Constraints: Evidence from U.S. Exports of New and Used Machines Giorgio Barba Navaretti, Isidro Soloaga, and Wendy Takacs An Argument for Deregulating the Transfer of Agricultural Technologies to Developing Countries David Gisselquist and Jean-Marie Grether A SYMPOSIUM ON GEOGRAPHICAL TARGETING Geographical Targeting for Poverty Alleviation: An Introduction to the Special Issue David Bigman and Hippolyte Fofack Combining Census and Survey Data to Trace the Spatial Dimensions of Poverty: A Case Study of Ecuador Jesko Hentschel, Jean Olson Lanjouw, Peter Lanjouw, and Javier Poggi Community Targeting for Poverty Reduction in Burkina Faso David Bigman, Stefan Dercon, Dominique Guillaume, and Michel Lambotte Combining Light Monitoring Surveys with Integrated Surveys to Improve Targeting for Poverty Reduction: The Case of Ghana Hippolyte Fofack SSN 0258-6770 FILE COPY Public Disclosure Authorized Public Disclosure Authorized Public Disclosure Authorized Public Disclosure Authorized