We can demonstrate the influence of including extra of the variable useful resource, say labor, to a fixed number of capital and see what happens to output. For demonstration applications in economics, we frequently https://www.youtube.com/watch?v=-nQTR6bXhfU&list=PLZ3DkIWtVYetfvXsAvY04--yisQJg2WWI&index=9&pp=iAQB