Front Matter

p.1

Aggregation and Social Choice: A Mean Voter Theorem
Andrew Caplin
Barry Nalebuff

p.25

Aggregation and Imperfect Competition: On the Existence of Equilibrium
Andrew Caplin
Barry Nalebuff

p.61

Lexicographic Probabilities and Choice Under Uncertainty
Lawrence Blume
Adam Brandenburger
Eddie Dekel

p.81

Lexicographic Probabilities and Equilibrium Refinements
Lawrence Blume
Adam Brandenburger
Eddie Dekel

p.99

The Optimality of Boiteux-Ramsey Pricing
Egbert Dierker

p.123

Monotonic Preferences and Core Equivalence
Alejandro M. Manelli

p.139

Mixture Symmetry and Quadratic Utility
S. H. Chew
L. G. Epstein
U. Segal

p.165

Segmented or Competitive Labor Markets
Th. Magnac

p.189

Job Exit Behavior of Older Men
James Berkovec
Steven Stern

p.211

A Continuous Time Approximation to the Unstable First-Order Autoregressive Process: The Case Without an Intercept
Pierre Perron

p.237

Notes and Comments: Solution to a Problem of Stochastic Process Switching
Gregor W. Smith

p.241

Notes and Comments: Stochastic Process Switching: Some Simple Solutions
Kenneth A. Froot
Maurice Obstfeld

p.251

Announcements

p.259

News Notes

p.261

The Econometric Society Annual Reports, 1990: Report of the Secretary
Julie P. Gordon

p.269

The Econometric Society Annual Reports, 1990: Report of the Treasurer
Robert J. Gordon

p.277

The Econometric Society Annual Reports, 1990: Annual Report of the Editors
Lars Hansen
Martin Hellwig
Andreu Mas-Colell
Robert Porter

p.279

The Econometric Society Annual Reports, 1990: The Econometric Society Research Monograph Series Report of the Editors
Avinash Dixit
Alain Monfort

Back Matter