This is the second of three volumes containing edited versions of papers and a commentary presented at invited symposium sessions of the Ninth World Congress of the Econometric Society, held in London in August 2005. The papers cover both theory and applications. Written by leading specialists in their fields, these volumes provide a unique survey of progress in the discipline. Contributors ix Introduction by the Editors xi 1 Empirical Models of Auctions 1(45) Susan Athey and Philip A. Haile 2 Identification in Models of Oligopoly Entry 46(40) Steven Berry and Elie Tamer 3 Empirical Models of Imperfect Competition: A Discussion 86(11) Liran Einav and Aviv Nevo 4 Recent Developments in the Economics of Price Discrimination 97(45) Mark Armstrong 5 Bounded Rationality in Industrial Organization 142(33) Glenn Ellison 6 Price Discrimination and Irrational Consumers: Discussion of Armstrong and Ellison 175(6) Kenneth Hendricks 7 Behavioral Economics 181(34) Colin F. Camerer 8 Incentives and Self-Control 215(31) Ted O'Donoghue and Matthew Rabin 9 Discussion of "Behavioral Economics" 246(9) Ariel Rubinstein 10 Dynamic Models for Policy Evaluation 255(24) Costas Meghir 11 Microeconometric Search-Matching Models and Matched Employer-Employee Data 279(32) Fabien Postel-Vinay and Jean-Marc Robin 12 Discussion of 'Dynamic Models for Policy Evaluation' and 'Microeconometric Search-Matching Models and Matched Employer-Employee Data' 311(11) Joseph G. Altonji 13 Field Experiments in Development Economics 322(27) Esther Duflo 14 Institutions and Development: A View from Below 349(64) Rohini Pande and Christopher Udry Index 413