In order to comprehend the ontological construction below, please refer to the respective posts for all notions in italic.
The economy of scope is given by the optimal market structure of the conjoined supply and demand for a number of commodities. It is easier certain goods to be produced together and certain goods to be consumed together; these are complementary goods in the realms of supply or demand. In any set of correlated commodities, there is optimal diversity of different types of goods which can be produced or consumed together. Such variety of goods on the market is limited by the constant productivity of commodity differentiation.
Historical Backdrop
• JOHN PANZAR and ROBERT WILLING Economy of Scope: economy of scope.