Core–periphery structure: Difference between revisions

Revision as of 05:47, 18 February 2018

Revision as of 17:26, 12 March 2018

Line 1:

{{Multiple issues|{{citation style|date=March 2018}}

{{technical|date=July 2015}}

{{Underlinked|date=July 2015}}}}

}}

'''Core–periphery structures''' are commonly found in [[Economics of networks|economic]] and [[social network]]s. They consist of a dense cohesive core and a sparse, loosely connected periphery. (Zhang, Martin, & Newman, n.d.) Networks can be described from various macro, micro and meso scales. Identifying these structures allows for the comparison between complex structures. (Rombach, Porter, Fowler, & Mucha, 2014)

[[File:Core-Periphery Network.png|thumb|A Network with an idealized core–periphery structure]]

Line 23 ⟶ 22:

==Uses in economics==

The concept of center and periphery was first introduced by [[Raúl Prebisch]] in the 1950s. However, the qualitative notion that social networks can have a core–periphery structure has a long history in disciplines such as sociology, international relations (Nemeth & Smith, 1985), and economics (Snyder & Kick, 1979). Observed trade flows and diplomatic ties among countries fit this structure. [[Paul Krugman]] (1991) suggests that when transportation costs are low enough manufacturers concentrate in a single region known as the core and other regions (the periphery) limit themselves to the supply of agricultural goods.

==See also==