Law of Variable Proportion is defined. The three Laws – Law of Increasing Marginal Returns, Law of Constant Marginal Returns and Law of Diminishing Marginal Returns- are also identified and defined. br br If the video is blured change the display settings in the right bottom corner. You will get a good video. br br Follow me at my blog – br economics-nallasivam.blogspot.in br http:\www.economicsnallasivam.wordpress.com br br Send your feed back to – logasivam@gmail.