publicaciones seleccionadas artículo Extracting the Sovereigns’ CDS Market Hierarchy: A Correlation-filtering Approach 2014 documento de trabajo Extracting the Sovereigns’ CDS Market Hierarchy: A Correlation-filtering Approach 2013 Investment Horizon Dependent CAPM: Adjusting Beta for Long Term Dependence 2012-08 Does the Use of Foreign Currency Derivatives Affect Colombian Firms’ Market Value? 2009-05