The Nobel price for economics was awared to quite a few mathematicians. Leonid Kantorovich won it for applying his results in Operations Research [1] to planni

The Nobel price for economics was awared to quite a few mathematicians. Leonid Kantorovich won it for applying his results in Operations Research [1] to planning the Russian economy. John Nash won it for .. of course .. Game Theory. [1] He proved criteria for the convergence of the Newton Method and quite a bit more. Those results are applied really everywhere nowadays.