Argentina's economy rebounded strongly from World War I-related shortages of goods and credit, and Yrigoyen's vigorous labor policy helped translate this into record living standards.

Conservatives formed an alliance, the National Concentration, but did not nominate their most prominent figure, former Buenos Aires Province Governor Marcelino Ugarte.

Piñero had helped a needed overhaul of Argentina's penal code in 1890, a record his backers hoped could, in voters' minds, separate the hastily formed National Concentration from its ties to the violent Argentine Patriotic League.

[2] An increasingly respected Lisandro de la Torre who had been unable to promote his Democratic Progressive Party into an effective centrist alternative to the UCR, chose former Education Minister Dr. Carlos Ibarguren as the nominee.

Argentine Socialists, led by Senator Juan B. Justo, nominated one of his closest collaborators, and, a leader in Argentina's cooperative movement, the respected Deputy Nicolás Repetto.