Castagnoli, Erio; Favero, Gino - In: International Journal of Applied Management Science 1 (2008) 1, pp. 90-96
We show how the well-known Farkas Lemma, commonly used to characterise absence of arbitrages in perfect markets, is also exploitable to ascertain the completeness of a market with total short sales constraints. The generalisation of this lemma to convex cones also allows to characterise the...