Irving Fisher's encounter with the Quantity theory of Money began in the 1890s, during the debate about bimetallism, and reached its high point in 1911 with the publication of The Purchasing Power of Money. His most important refinement of the theory, derived from his recognition of bank...

A Nash equilibrium can also be seen as a Cournot-Nash equilibrium, though this is debated because Cournot provided a specific application, not a general formulation. In my view, another of Nash's fundamental contributions stands out when contrasting him to Cournot. Cournot treated economic...

In fall 1935, Abraham Wald presented an existence proof for a general equilibrium of exchange model to Karl Menger's Mathematical Colloquium in Vienna. Due to limited space, the paper could not be printed in the eighth proceedings of the Colloquium (the Ergebnisse) published in spring 1937 but...

In this review essay of Medema's and Waterman's collection of some of Samuelson's writings in the history of economics, the author argues that Samuelson's claim to have written “Whig History” is spurious. Moreover the author argues that Samuelson's own writings on modern economics are,...

This paper uses as source material twenty-three autobiographical essays by Nobel economists presented since 1984 at Trinity University (San Antonio, Texas) and published in Lives of the Laureates (MIT Press). A goal of the lecture series is to enhance understanding of the link between biography...

In a prolific and illustrious career, the late Gary Becker (1930 - 2014) developed what he would later call "the economic approach to human behaviour". One of the most significant strands of that research was that which focused on human capital, occuping a significant part of his career,...

The theorem proving the existence of general equilibrium in a competitive economy, which necessarily involved specifying the conditions under which such an equilibrium would exist, is an extraordinary achievement of twentieth-century economics. The discovery is commonly attributed to the paper...

During the 1950s and 1960s, many economists were convinced that externalities were a cause of "market failures" -- because individuals are not capable of internalizing the costs their actions impose to others -- and therefore that the intervention of the state was necessary to allow an efficient...

Elzinga & Mills (2011) trace the origin of the price/cost margin (P-MC)/P commonly used as an index of monopoly power in Abba Lerner's famous 1934 essay in the Review of Economic Studies. They also ascribe to Landes & Posner (1981) the more general version of the index for the case of a dominant...