Statistics &

www.idescat.cat/sort/ A mathematical programming approach for different scenarios of bilateral bartering Stefano Nasini, Jordi Castro and Pau Fonseca∗ The analysis of markets with indivisible goods and fixed exogenous prices has played an impor-tant role in economic models, especially in relation to wage rigidity and unemployment. This paper provides a novel mathematical programming based approach to study pure exchange economies where discrete amounts of commodities are exchanged at fixed prices. Barter processes, consist-ing in sequences of elementary reallocations of couple of commodities among couples of agents, are formalized as local searches converging to equilibrium allocations. A direct application of the analysed processes in the context of computational economics is provided, along with a Java implementation of the described approaches