Ensayos sobre política económica ESPE is a serial publication in economics, whose aim is to publish technical papers of high quality. The kind of papers that ESPE publishes is characterized for being: i) interesting, ii) original y iii) technically correct. Hence, ESPE will consider for publication original research work, both theoretical and applied, which is of relevance for a better understanding of economic problems and of policies needed to remedy them. ESPE emphasizes economic problems facing Colombia, and LatinAmerican but is not limited to work applied to these cases: any manuscript from which it is possible to learn about economic problems and policies may be submitted to the editorial process, with the proviso that ESPE will not consider for publication work with relevance only in the very short term. ESPE is published by the Deputy Governor`s office of Banco de la República, the Colombian Central Bank, but this does not imply that only papers produced in Banco de la República are published in ESPE, nor that the journal expresses the opinions of the institution. ESPE is a scientific publication, targeted and open to all members of academic communities with interest in economics. Hence, ESPE will not consider documents in which authors merely express their opinions, but only those with a technical foundation according to current standards in economics.