May 1997 (Revised May 1998) <p> By definition, multilaterally strategy-proof mechanisms are immune to manipulation not only by individuals misrepresenting their preferences, but also by finite coalitions exchanging tradeable goods on the side. Continuum economies are defined in which both agents'...</p>

July 2000 <p> Marshallian consumer surplus (MCS) is generally an inaccurate measure of welfare change because it neglects income effects. Suppose these effects overturn the usual demand response to a price change. Then, the deadweight loss from a distortionary tax or subsidy has the wrong sign,...</p>

October 1997 (Now published: Scandinavian Journal of Economics, 100 (1998), 11--32.) <p> There are two distinct "Scandinavian consensus" approaches to public good supply, both based on agents' willingness to pay.  A Wicksell--Foley public competitive equilibrium arises from a negative consensus in...</p>

Second version: November, 1995. <p>This paper partially extends the f-core equivalence theorem of Hammond, Kaneko and Wooders [7] for continuum economies with widespread externalities --- i.e., those over which each individual has negligible control. Externalities need not result directly from...</p>

April 2000 <p> As is well known, a continuous parameter process with mutually independent random variables is not jointly measurable in the usual sense. This paper proposes using a natural ``one-way Fubini'' property that guarantees a unique meaningful solution to this joint measurability problem...</p>

Consider an “isolation paradox” game with many identical players. By definition, conforming to a rule which maximizes average utility is individually a strictly dominated strategy. Suppose, however, that some players think “quasi-magically” in accordance with evidential (but not causal)...

Von Neumann (1928) not only introduced a fairly general version of the extensive form game concept. He also hypothesized that only the normal form was relevant to rational play. Yet even in Battle of the Sexes, this hypothesis seems contradicted by players' actual behaviour in experiments. Here...