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Theory of the firm is an analysis of the behavior of companies that examine inputs, production methods, output and prices.
The first elementary examination of companies was made by French economist Antoine Augustin Cournot (1801-1877) and later modified by (among others) English political economist Alfred Marshall (1842-1924).
The traditional theory assumes that profit maximization is the goal [...]

Arthur Cecil Pigou (1877-1959) developed earlier work by fellow English economists HENRY SIDGWICK (1838-1900) and Alfred Marshall (1842-1924) into an important feature of modern economic theory.

Economic activity generates costs and benefits, some of which are not incurred/enjoyed by the person performing the activity.
When, for example, a company pollutes the environment, it may enjoy efficient production [...]

Body of analysis examining the balance of interrelated variables of an economy and their tendency to resist change.

Classical economic theory, outlined by Scottish economist Adam Smith (1723-1790) and English economist David Ricardo (1772-1823), regarded market prices as fluctuating around the natural price (which can be considered a central price towards which market prices tend). Another [...]

Identified by French engineer and economist Jules Dupuit (1804-1866) and later developed by English economist Alfred Marshall (1842-1924), consumer surplus theory assumes that the price paid by consumers for a good never exceeds and seldom equals the amount they are willing to pay rather than forgo the good.
The satisfaction derived from the good is greater [...]

An assertion that a continuum exists between the classical and neoclassical schools of economy which was not disrupted by the rise of the Marginalist movement of the 1870s.
Continuity thesis maintains that English economist Alfred Marshall (1842-1924) did not overturn classical economics but simply used sharper mathematical tools to refine Ricardian economics.
Written by: David Byrd
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