Increase of income inequality in crisis period applied to Colombian society Inequality is one of the most evident repercussions of unsuccessful or evolving economic systems. Particularly in developing countries the inequality most common measures sign the problematic with the higher levels around the world – With exception of some successful systems that deal with this inconvenient- In the particular case of Colombian society the problem needs to be addressed – been one of the most unequal countries of its region- However, the main goal of this thesis is study the relationship and possible correlation between increase of inequality in crisis periods of the economic cycle.