TY - JOUR A1 - Aloud, Monira A1 - Tsang, Edward A1 - Olsen, Richard A1 - Dupuis, Alexandre TI - A Directional-Change Events Approach for Studying Financial Time Series PY - 2011/07/28 JA - Economics: The Open-Access, Open Assessment E-Journal VL - 5 IS - 2011-28 UR - http://www.economics-ejournal.org/economics/discussionpapers/2011-28 ER -