we could show the effect of incorporating extra of the variable resource, say labor, to a hard and fast degree of funds and find out what occurs to output. For demonstration needs in economics, we often make widgets, https://www.youtube.com/watch?v=-nQTR6bXhfU&list=PLZ3DkIWtVYetfvXsAvY04--yisQJg2WWI&index=9&pp=iAQB