Ley 11.210 "de represion de monopolios" (1923) prohibited "any agreement, covenant, combination, amalgamation or merger of assets/capital tending to establish or sustain a monopoly and profiting from it." This law was later amended in 1946 by Ley 12.906 which was designed to repress all behaviors designed to establish or maintain a monopoly. The 1946 amendment had little effect because of the political situation that persisted in Argentina until the 1990's.
The substantive provisions of 11.210 and 12.906 are currently unavailable.
- http://www.cema.edu/ar/publicaciones/download/documentos/146.pdf at page 18
- http://ec.europa.eu/comm/competition/publications/blc/boletin_8_1_es.pdf at page 20
- Id. at page 21