quality:correction, linguistic:translation, structural:expansion
History of the fourfold model of goods

In 1977 (#Jerbs), Nobel winner Elinor Ostrom and her husband Vincent Ostrom proposed additional modifications to the existing classification of goods so to identify fundamental differences that affect the incentives facing individuals. Their definitions are presented on the matrix.

Elinor Ostrom proposed additional modifications to the classification of goods to identify fundamental differences that affect the incentives facing individuals