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A Pigouvian tax (also spelled Pigovian tax) is a tax on any market activity that generates negative externalities (i.e., external costs incurred by third parties that are not included in the market price). A Pigouvian tax is a method that tries to internalize negative externalities to achieve the Nash equilibrium and optimal Pareto efficiency. [1]
Arthur Cecil Pigou (/ ˈ p iː ɡ uː /; 18 November 1877 – 7 March 1959) was an English economist. As a teacher and builder of the School of Economics at the University of Cambridge , he trained and influenced many Cambridge economists who went on to take chairs of economics around the world.
A Pigovian tax (also called Pigouvian tax, after economist Arthur C. Pigou) is a tax imposed that is equal in value to the negative externality. In order to fully correct the negative externality, the per unit tax should equal the marginal external cost. [ 56 ]
Pigou developed the concept of externalities in 1920 through ‘The Economics of Welfare’. [5] Essentially, Pigou argued negative externalities (spillover) of an activity should incur an extra cost or tax while activities that produce a positive externalities (spillover) should be subsidized to further encourage this activity.
The distinction between pecuniary and technological externalities was originally introduced by Jacob Viner, who did not use the term externalities explicitly but distinguished between economies (positive externalities) and diseconomies (negative externalities). [1] Under complete markets, pecuniary externalities offset each other. For example ...
The Pigou–Dalton principle (PDP) is a principle in welfare economics, particularly in cardinal welfarism. Named after Arthur Cecil Pigou and Hugh Dalton, it is a condition on social welfare functions. It says that, all other things being equal, a social welfare function should prefer allocations that are more equitable. In other words, a ...
The Downs–Thomson paradox (named after Anthony Downs and John Michael Thomson), also known as the Pigou–Knight–Downs paradox (after Arthur Cecil Pigou and Frank Knight), states that the equilibrium speed of car traffic on a road network is determined by the average door-to-door speed of equivalent journeys taken by public transport or the next best alternative.
The Pigou effect was first popularised by Arthur Cecil Pigou in 1943, in The Classical Stationary State an article in the Economic Journal. [4] He had proposed the link from balances to consumption earlier, and Gottfried Haberler had made a similar objection the year after the General Theory's publication. [5]