Notes, Comments and Preliminary results Sep 09 2011 Loredana Ureche-Rangau , Fabien Collado and Ulysse Galiay   The dynamics of the volatility – trading volume relationship: New evidence from developed and emerging markets   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result   Jul 28 2011 Loredana Ureche-Rangau and Franck Speeg   A simple method for variance shift detection at unknown time points   Abstract  Contact Information  Citation  Full Text  -  Note   Research announcements Conference announcements