In this paper we study the introduction of new assets which are oftenly observed to be defined in expected values rather than state by state, called the Arrow-Lind-Malinvaud (ALM) assets. We demonstrate that individual default emerges naturally in an economy where such ALM assets are introduced...

This collection of essays honors David Cass on the 30th anniversary of his joining the faculty of the Department of Economics at the University of Pennsylvania. Prof. Cass's work has spawned a number of important lines of research in Economics, including the study of dynamic general equilibrium,...