Abstract:
Following up on the work of Megiddo and Vazirani \cite{MV.2007}, who determined continuity properties of equilibrium prices and allocations for perhaps the simplest market model, Fisher's linear case, we do the same for: \begin{itemize} \item Fisher's model with piecewise-linear, concave utilities \item Fisher's model with spending constraint utilities \item Arrow-Debreu's model with linear utilities \item Arrow-Debreu's model with piecewise-linear, concave utilities \end{itemize}