Micro Economy Model Software Micro Economy Model Software: Mathematic Economic Model for Teachers and Students of marketing and economics (Software) http://www.sysworks.com.ar/economics/index.htm
QuantLib QuantLib: A free/open-source library for quantitative finance, written in C++ and exported to different languages such as Python, Ruby and Scheme. (Software) http://quantlib.org/
Financial Numerical Recipes Financial Numerical Recipes: Discussion of algorithms and C++ code for advanced financial calculations by Bernt Arne Ødegaard. (Software) http://finance.bi.no/~bernt/gcc_prog/recipes/recipes/
UnRisk UnRisk: A software tool for the robust, accurate and fast pricing of complicated financial derivatives. It has a C++ kernel, but can be used under Mathematica. (Software) http://www.unriskderivatives.com/