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Graph Theory

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The New Palgrave Dictionary of Economics
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Abstract

Graphs are used in economics to depict situations in which agents are in direct contact with each other. The use of graph theory enables one to understand the basic properties of the communication network in an economy or market. Typical questions include: how does the structure of a network affect economic outcomes and the welfare of the individuals involved? What happens if agents can choose those with whom they interact? How will networks evolve over time? Theoretical results, economic applications and empirical examples are given.

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Kirman, A. (2018). Graph Theory. In: The New Palgrave Dictionary of Economics. Palgrave Macmillan, London. https://doi.org/10.1057/978-1-349-95189-5_1232

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