Discuss the pros and cons of the Markowitz model and the Single Index Model. Share at least one link to support some of the points that you make. 400 WORDS grading criteria * Completion of all Discussion Board topics * Substantial original contributions for each Discussion Board topic that further the work of the class. Generally the initial topic response is 400-500 words. * Original, thoughtful analysis of unit materials. * Connects unit material to life experiences, past assignments, and elaborates. * Clear and fluent writing. * Well thought out responses in Standard English. * Postings made in a timely manner, meaning discussion contribution beginning within four days of the week start and continuing over the week for each Discussion Board topic. * Citations given in correct APA style