Electoral Management Bodies Mexico Roll-Call Data Non-Ignorable Abstentions in Mexico’s Instituto Federal Electoral By pgsmith • January 11, 2009April 8, 2020 G. Rosas and Y. Shomer, “Non-Ignorable Abstentions in Mexico’s Instituto Federal Electoral“, in E. Aragonés, C. Beviá, H. Llavador, and N. Schofield (eds.), The Political Economy of Democracy, Fundación BBVA, 2009.