Jeremy Bentham to the fundamental concepts employed in his model of utilitarian decision making. His work is considered to be an early precursor of modern welfare economics. Bentham stated that pleasures and pains can be ranked according to their value or "dimension" such as intensity, duration, certainty of a pleasure or a pain. He was concerned with maxima and minima of pleasures and pains; and they set a precedent for the future employment of the maximisation principle in the economics of the consumer, the firm and the search for an optimum in welfare economics. Bentham advocated "Pauper Management" which involved the creation
Schools of economic thought what is termed the modern era. Currently, the great majority of economists follow an approach referred to as mainstream economics (sometimes called 'orthodox economics'). Within the mainstream in the United States, distinctions can be made between the Saltwater school (associated with Cornell, Berkeley, Harvard, MIT, Pennsylvania, Princeton, and Yale), and the more laissez-faire ideas of the Freshwater school (represented by the Chicago school of economics, Carnegie Mellon University, the University of Rochester and the University of Minnesota). Both of these schools of thought are associated with the neoclassical synthesis. Some influential approaches of the past, such as the historical school