El sistema de partidos peruano entre 2001 y 2016: fragmentación, inestabilidad y creciente distanciamiento entre poderes.

This study analyzes the Peruvian party system between 2001 and 2016 and its effects on the functioning of the Congress of the Republic through different indicators of legislative activity, such as normative production, revision of decrees, and control of the executive and partisan conformation of the legislature and its governing bodies, among others. As a result, different stages in executive-legislative relations are evidenced, with a marked distancing and final isolation of the ruling party, which tends to increase instability and difficulty in deploying its government agenda. Congress had a high degree of instability, volatility, and growing difficulties in articulating majorities that would allow it to carry out its functions as a legislative power. The low institutionalization of the party system and the precarious structuring of these organizations explain, at least partially, the limiting effects on the functioning of the executive and legislative branches and their progressive distancing. [ABSTRACT FROM AUTHOR]