we can easily exhibit the impact of introducing more of a variable source, say labor, to a fixed quantity of funds and find out what comes about to output. For demonstration applications in economics, we frequently make https://www.youtube.com/watch?v=-nQTR6bXhfU&list=PLZ3DkIWtVYetfvXsAvY04--yisQJg2WWI&index=9&pp=iAQB