Dogan, E.Le Van, C.Saglam, C.2016-02-082016-02-0820110165-4896http://hdl.handle.net/11693/22012This paper analyses the optimal timing of switching between alternative and consecutive regimes in optimal growth models. We derive the appropriate necessary conditions for such problems by means of standard techniques from the calculus of variations and some basic properties of Sobolev spaces. © 2010 Elsevier B.V.EnglishMulti-stage optimal controlOptimal growth modelsSobolev spacesArticle10.1016/j.mathsocsci.2010.11.005