... theorem insures that in many instances in which the core is empty, the least core isactually not (for example the quadratic taxation case, or the piecewise linear taxation case). Once thenon-emptiness ... (2004)[16] Edwards, RE, Measure, Functional Analysis Theory and Applications. Holt, Rinehart and Win-ston, New York (1965)[17] Ash, RB: Measure, Integration and Functional Analysis. Academic Press, ... Filip∗1,21Department of Statistics, Forecasting and Mathematics,Faculty of Economics and Business Administration,University Babe¸s Bolyai, 400591 Cluj-Napoca, Romania2Laboratoire d’Economie d’Orl´eans,Facult´e...