caa a22 4500 44536310X CHVBK 20180317142921.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s00780-009-0111-2 doi (NATIONALLICENCE)springer-10.1007/s00780-009-0111-2 Larsen Kasper Department of Mathematical Sciences, Carnegie Mellon University, 15213, Pittsburgh, PA, USA aut A note on the existence of the power investor's optimizer [Elektronische Daten] [Kasper Larsen] Karatzas et al. (SIAM J. Control Optim. 29:707-730, 1991) ensure the existence of the expected utility maximizer for investors with constant relative risk aversion coefficients less than one. In this note, we explain a simple trick that allows us to use this result to provide the existence of utility maximizers for arbitrary coefficients of relative risk aversion. The simplicity of our approach is to be contrasted with the general existence result provided in Kramkov and Schachermayer (Ann. Appl. Probab. 9:904-950, 1999). Springer-Verlag, 2009 Incomplete markets nationallicence Convex duality nationallicence Change of measure nationallicence CRRA preferences nationallicence Finance and Stochastics Springer-Verlag 15/1(2011-01-01), 183-190 0949-2984 15:1<183 2011 15 780 https://doi.org/10.1007/s00780-009-0111-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00780-009-0111-2 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Larsen Kasper Department of Mathematical Sciences, Carnegie Mellon University, 15213, Pittsburgh, PA, USA aut NATIONALLICENCE 773 0- Finance and Stochastics Springer-Verlag 15/1(2011-01-01), 183-190 0949-2984 15:1<183 2011 15 780 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer