We have given several proofs on the existence of the price equilibrium --- via variational inequality --- via degree theory and via Brouwer's theorems.
@article{118597, author = {Enayet U, Tarafdar and Harold Bevan Thompson}, title = {On the existence of the price equilibrium by different methods}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {34}, year = {1993}, pages = {413-417}, zbl = {0802.47060}, mrnumber = {1243072}, language = {en}, url = {http://dml.mathdoc.fr/item/118597} }
Tarafdar, Enayet U,; Thompson, Harold Bevan. On the existence of the price equilibrium by different methods. Commentationes Mathematicae Universitatis Carolinae, Tome 34 (1993) pp. 413-417. http://gdmltest.u-ga.fr/item/118597/
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