At the head of IRI were leading members of the Christian Democracy party, such as Giuseppe Petrilli, president of the Institute from 1960 to 1979. In his writings, Petrilli developed a theory that emphasized the positive effects of the "IRI formula".
Leading figures in IRI included key members of the Christian Democracy party, such as Giuseppe Petrilli, who served as president from 1960 to 1979. In his writings, Petrilli articulated a theory that underscored the positive impacts of the "IRI formula".