CONTENTS: VOLUME 1: PART 1EARLY ANALYSIS -- 1. Harold Hotelling (1929), `Stability in Competition --2. Nicholas Kaldor (1935), `Market Imperfection and Excess Capacity --3. Edward H. Chamberlin (1951), `Monopolistic Competition Revisited --PART 2CHARACTERISTIC MODELS OF PRODUCT DIFFERENTIATIONA: DEMAND FOR DIFFERENTIATED PRODUCTS AND THE `NEW -- CONSUMER THEORY4. Kelvin J. Lancaster (1966), `A New Approach to Consumer Theory --5. William Novshek and Hugo Sonnenschein (1979), `Marginal Consumers and Neoclassical Demand Theory --6. Simon P. Anderson, Andre de Palma and Jacques-Francois Thisse (1989), `Demand for Differentiated Products, Discrete Choice Models, and the Characteristics Approach --7. Sherwin Rosen (1974), `Hedonic Prices and Implicit Markets: Product Differentiation in Pure Competition --B: HORIZONTAL DIFFERENTIATION8. Edward C. Prescott and Michael Visscher (1977), `Sequential Location Among Firms with Foresight --9. C d --Aspremont, J. Jaskold Gabszewicz and J. F. Thisse (1979), `On Hotelling --s "Stability in Competition" --10. Steven C. Salop (1979), `Monopolistic Competition with Outside Goods --11. B. Curtis Eaton and Myrna Holtz Wooders (1985), `Sophisticated Entry in a Model of Spatial Competition --12. Richard Schmalensee (1978), `Entry Deterrence in the Ready-to-East Breakfast Cereal Industry --13. Kenneth L.Judd (1985), `Credible Spatial Preemption --C: VERTICAL DIFFERENTIATION14. Michael Mussa and Sherwin Rosen (1978), `Monopoly and Product Quality --15. J.Jaskold Gabszewicz and J. F .Thisse (1979), `Price Competition, Quality and Income Disparities --16. Avner Shaked and John Sutton (1983), `Natural Oligopolies --17. Paul Champsaur and Jean-Charles Rochet (1989), `Multiproduct Duopolists --18. Shabtai Donnenfeld and Shlomo Weber (1992), `Vertical Product Differentiation with Entry --VOLUME IIPART 1REPRESENTATIVE CONSUMER MODELS OF PRODUCT DIFFERENTIATION1. Michael Spence (1976), `Product Selection, Fixed Costs, and Monopolistic Competition --2. Avinash K. Dixit and Joseph E. Stiglitz (1977), `Monopolistic Competition and Optimum Product Diversity --3. Xavier Vives (1985), `On the Efficiency of Bertrand and Cournot Equilibria with Product Differentiation --4. G.K.. Yarrow (1985), `Welfare Losses in Oligopoly and Monopolistic Competition --PART 2PROBABILISTIC MODELS OF PRODUCT DIFFERENTIATION5. Jeffrey M. Perloff and Steven C. Salop (1985), `Equilibrium with Product Differentiation --6. Oliver D. Hart (1985), `Monopolistic Competition in the Spirit of Chamberlin: Special Results --7. Raymond Deneckere and Michael Rothschild (1992), `Monopolistic Competition and Preference Diversity --8. Simon P. Anderson and Andre de Palma (1992), `Multiproduct Firms: A Nested Logit Approach --9. Andrew Caplin and Barry Nalebuff (1991), `Aggregation and Imperfect Competition: On the Existence of Equilibrium --PART 3PRODUCT DIFFERENTIATION AND NON-PRICE COMPETITION10. Anthony Downs (1957), `An Economic Theory of Political Action in a Democracy --11. B. Curtis Eaton and Richard G. Lipsey (1975), `The Principle of Minimum Differentiation Reconsidered: Some New Developments in the Theory of Spatial Competition --12. A. Denzau, A. Kats and S. Slutsky (1985), `Multi-Agent Equilibria with Market Share and Ranking Objectives --PART 4PRODUCT DIFFERENTIATION IN INTERNATIONAL TRADE13. Paul Krugman (1980), `Scale Economies, Product Differentiation, and the Pattern of Trade --14. Elhanan Helpman (1981), `International Trade in the Presence of Product Differentiation, Economies of Scale and Monopolistic Competition: A Chamberlin-Hecksher-Ohlin Approach --15. Bruce R. Lyons (1984), `The Pattern of International Trade in Differentiated Products: An Incentive for the Existence of Multinational Firms --16. Avner Shaked and John Sutton (1984), `Natural Oligopolies and International Trade --PART 5PRODUCT DIFFERENTIATION AND MARKETING17. Daniel McFadden (1980), `Econometric Models for Probabilistic Choice Among Products --18. John Hauser (1980), `Comments on "Econometric Models for Probabilistic Choice Among Products --19. Allan D. Shocker and V. Srinivasan (1974), `A Consumer-Based Methodology for the Identification of New Product Ideas --20. S. Chan Choi, Waynes S. DeSarbo and Patrick T. Harker (1990), `Product Positioning Under Price Competition