 A severe shortage of domestic credit hampered the sector somewhat, however, as growing harvests soon outstripped transport and storage capacity.A tie of the Argentine peso to the U.S. dollar implemented by economist Domingo Cavallo in 1991 reduced export competitiveness somewhat, though the resulting stability led to record investments in agricultural infrastructure and led to strong growth in harvests during the late 1990s.These trends were accompanied by the federal approval of GMO crops in 1995.