Title:Disintegration and resilience of agrarian societies in Africa: the importance of social and genetic resources. a case study on the reception of urban war refugees in the South of Guinea Bissau
Title:Some simple graphical interpretations of the Herfindahl-Hirshman index and their implications / Documento de trabajo (Universidad CEU-San Pablo, Instituto de Estudios Europeos). Serie Política de la Competencia ; 1-2003
Title:Nutrition and education in childhood: is it possible to show a causal relationship using cross-section data? / Nutrición y rendimiento escolar: ¿es posible mostrar una relación causal usando datos de corte transversal?