Autore:
Fioretti, Guido Titolo:
A mathematical theory of evidence for G.L.S. shacklePeriodico:
International Center for Economics Research, Torino. ICER - Working papers seriesAnno:
2001 - Fascicolo:
3 - Pagina iniziale:
1 - Pagina finale:
21Evidence Theory is a branch of mathematics that concerns the combination of empirical evidence in an individual's mind in order to construct a coherent picture of reality. Designed to deal with unexpected empirical evidence suggesting new possibilities, evidence theory has a lot in common with Shackle's idea of decision-making as a creative act. This essay investigates this connection in detail, pointing to the usefulness of evidence theory to formalise and extend Shackle's decision theory. In order to ease a proper framing of the issues involved, evidence theory is not only compared with Shackle's ideas but also with additive and sub-additive probability theories. Furthermore, the presentation of evidence theory does not refer to the original version only, but takes account of its most recent developments, too.
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