What is the psychology behind making a private collection public?

IN NOVEMBER 1967, in the pages of "Flash Art," the Italian art historian Germano Celant published "Arte Povera: Notes for a Guerrilla War," a manifesto for the then-burgeoning movement. ​ In it, Celant renounced the art market's growing appetite for commodification, as well as the notion of the artist as a producer for consumption. ​ Emerging from the social and political turmoil of the 1960s, arte povera stood in opposition to the artistic trends of the time, such as pop and minimalism, advocating an ethos of resistance through a turn to "poor" materials.