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Hedonimetry is the study of happiness as a measurable economic asset. The first major work in the field was an 1881 publication of Mathematical Psychics by the famous statistician and economist Francis Ysidro Edgeworth, who hypothesized a way of measuring happiness in units. [1]
Maria Edgeworth was a prolific Anglo-Irish novelist of adults' and children's literature. She was one of the first realist writers in children's literature and a significant figure in the evolution of the novel in Europe. She held critical views on estate management, politics, and education, and corresponded with some of the leading literary and economic writers, including Sir Walter Scott and David Ricardo. During the first decade of the 19th century she was one of the most widely read novelists in Britain and Ireland. Her name today is most commonly associated with Castle Rackrent, her first novel, in which she adopted an Irish Catholic voice to narrate the dissipation and decline of a family from her own landed Anglo-Irish class.
In economics, an Edgeworth box, sometimes referred to as an Edgeworth-Bowley box, is a graphical representation of a market with just two commodities, X and Y, and two consumers. The dimensions of the box are the total quantities Ωx and Ωy of the two goods.

Francis Ysidro Edgeworth was an Anglo-Irish philosopher and political economist who made significant contributions to the methods of statistics during the 1880s. From 1891 onward, he was appointed the founding editor of The Economic Journal.
Edgeworth's limit theorem is an economic theorem, named after Francis Ysidro Edgeworth, stating that the core of an economy shrinks to the set of Walrasian equilibria as the number of agents increases to infinity.
Sir Arthur Lyon Bowley, FBA was an English statistician and economist who worked on economic statistics and pioneered the use of sampling techniques in social surveys.
In mathematics, the digit sum of a natural number in a given number base is the sum of all its digits. For example, the digit sum of the decimal number would be
In cooperative game theory, the core is the set of feasible allocations or imputations where no coalition of agents can benefit by breaking away from the grand coalition. One can think of the core corresponding to situations where it is possible to sustain cooperation among all agents. A coalition is said to improve upon or block a feasible allocation if the members of that coalition can generate more value among themselves than they are allocated in the original allocation. As such, that coalition is not incentivized to stay with the grand coalition.

The Royal Society of New South Wales is a learned society based in Sydney, Australia. The Governor of New South Wales is the vice-regal patron of the Society. It is the oldest learned society in the Southern Hemisphere.
Richard Lovell Edgeworth was an Anglo-Irish politician, writer and inventor. He had 22 children.
Sir Tannatt William Edgeworth David was a Welsh Australian geologist and Antarctic explorer. A household name in his lifetime, David's most significant achievements were discovering the major Hunter Valley coalfield in New South Wales and leading the first expedition to reach the South Magnetic Pole. He also served with distinction in World War I.
Robert "Robin" John Tillyard FRS was an English–Australian entomologist and geologist.
Peter Gavin Hall was an Australian researcher in probability theory and mathematical statistics. The American Statistical Association described him as one of the most influential and prolific theoretical statisticians in the history of the field. The School of Mathematics and Statistics Building at The University of Melbourne was renamed the Peter Hall building in his honour on 9 December 2016.
Belinda is an 1801 novel by the Anglo-Irish writer Maria Edgeworth. It was first published in three volumes by Joseph Johnson of London. The novel was Edgeworth's second published, and was considered controversial in its day for its depiction of an interracial marriage. It was reprinted by Pandora Press in 1986.
Peter Kenneth Newman was an English economist and historian of economic thought. He helped to edit The New Palgrave: A Dictionary of Economics, to which he contributed several articles.
Mathematical economics is the application of mathematical methods to represent theories and analyze problems in economics. Often, these applied methods are beyond simple geometry, and may include differential and integral calculus, difference and differential equations, matrix algebra, mathematical programming, or other computational methods. Proponents of this approach claim that it allows the formulation of theoretical relationships with rigor, generality, and simplicity.
Michael Pakenham Edgeworth was an Irish botanist who specialized in seed plants and ferns, and spent most of his life working in India. He was also a pioneer of photography.
A hedonometer or hedonimeter is a device used to gauge happiness or pleasure. Conceived of at least as early as 1880, the term was used in 1881 by the economist Francis Ysidro Edgeworth to describe "an ideally perfect instrument, a psychophysical machine, continually registering the height of pleasure experienced by an individual."
Edgeworthia chrysantha is a plant in the family Thymelaeaceae.
Frances Anne Edgeworth (1769–1865), known as Fanny, was an Irish botanical artist and memoirist. She was the stepmother and confidant of the author Maria Edgeworth.