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On-line version ISSN 2007-9869Print version ISSN 1870-6622


GARCIA DE LA SIENRA, Adolfo. La estructura lógica de la teoría clásica de las finanzas. EconoQuantum [online]. 2010, vol.6, n.2, pp.81-98. ISSN 2007-9869.

In the present paper classical financial theory (TF) is presented in a complete, rigorous and compact way. It does not intend to introduce novel theorems, but only to interweave them using a method that has never been used in the demonstration of utility representations: Tarski's (1957) theorem on fixed points of lattices. It defines explicitly the typical concepts applied in financial theory and practice, starting with the philosophically fundamental notion of rationality: the concept of preference. The contribution of the paper consists of presenting the fundamental concepts and theorems in a compact, orderly, rigorous and abstract way, as well as in providing novel proofs of the latter. The paper ends by offering a general explanation of the well-known concept of portfolio, taking advantage of the preceding abstract development. Hopefully, this work will be useful in the teaching of TF.

Keywords : metodología de la economía; finanzas; utilidad esperada; riesgo; portafolios.

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