Thorstein Veblen is most particularly remembered for arguing that: (i) Consumer surplus is maximized by setting the marginal utility equivalent to price. (ii) National income [or NI] equivalents gross domestic product [or GDP] in circular flow model. (iii) Fixed costs are never related to rational profit-maximizing decisions. (iv) Demand curves are negatively sloped since of diminishing marginal utility. (v) Rich people use ‘conspicuous consumption’ to flaunt their status, class and power.