@article{Galindro_Torres_2018, title={A simple mathematical model for unemployment: a case study in Portugal with optimal control}, volume={6}, url={http://iapress.org/index.php/soic/article/view/soic.20180307}, DOI={10.19139/soic.v6i1.470}, abstractNote={We propose a simple mathematical model for unemployment. Despite its simpleness, we claim that the model is more realistic and useful than recent models available in the literature. A case study with real data from Portugal supports our claim. An optimal control problem is formulated and solved, which provides some non-trivial and interesting conclusions.}, number={1}, journal={Statistics, Optimization & Information Computing}, author={Galindro, Anibal and Torres, Delfim F. M.}, year={2018}, month={Feb.}, pages={116-129} }