We criticize some conceptual weaknesses in the recent literature on coalitional TUgames and propose, based on our critics, a new definition of dual TU-games that coincides with the one in the literature on the class of super-additive games. We justify our new definition in four alternative ways:...

Conjugate duality relationships are pervasive in matching and implementation problems and provide much of the structure essential for characterizing stable matches and implementable allocations in models with quasilinear (or transferable) utility. In the absence of quasilinearity, a more...

We study the canonical adverse selection contracting model using new techniques from generalised convex analysis. The fundamental duality in convex analysis between internal and external convexity extends from the classical affine case with linear valuations to the quasilinear case if and only...