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This thesis bases on the empirical work of Frumkes \citep{brain}. The next theorem shows how to earn more money if you sell bulk trash. This work is founded by Dennis and Matthias \citep{money}.

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\bibitem[Frumkes(2001)]{brain} <NAME>. (2001). ``\textit{How to Raise Your I.Q. by Eating Gifted Children}.'' iUniverse.
\bibitem[Dennis and Matthias(2017)]{money} <NAME>., <NAME>. (2017). ``\textit{How we earn more money}.'' Fachschaft VWL.
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