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{{Multiple issues|
{{citation style|date=March 2018}} {{technical|date=July 2015}}
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'''Core periphery structure''' is a [[network theory]] model based on [[Immanuel Wallerstein|Immanuel Wallerstein's]] [[world-systems theory]].{{citation needed|date=February 2019}} He formulated the chart in the 1980s.{{Clarify|date=August 2019}}▼
[[File:Core-Periphery Network.png|thumb|A Network with an idealized core–periphery structure]]
▲'''Core periphery structure''' is a [[network theory]] model based on [[Immanuel Wallerstein|Immanuel Wallerstein's]] [[world-systems theory]].{{citation needed|date=February 2019}} He formulated the chart in the 1980s.{{Clarify|date=August 2019}}
==Models of core–periphery structures==
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==References==
{{reflist}}
* Borgatti, S. P., & Everett, M. G. (1999). Models of core /periphery structures. Social Networks, 21, 375–395. doi:10.1016/S0378-8733(99)00019-2
* Krugman, P.R. (1991), Increasing returns and economic geography, Journal of Political Economy 99, 483–499.
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