Skip to main content

The synchronization club: classification of global economic groups by inequality

Buy Article:

$53.17 plus tax (Refund Policy)


We find that, from 1970 to 2006, the GDPs of 181 countries are described by a log-normal with a power law tail before 1992, but by a kinked power law distribution after 1992. In the 15 years from 1992 to 2006, there are two obvious scale-free zones for annual GDPs, ranked from the largest to smallest. If the countries in each scaling region are regarded as a group, the world is divided into two groups, each with a roughly stable number of members. The power exponents of the two groups are different and hence lead to different inequalities. Therefore, the basis for classification is the macro-consistent inequality within each group. The wealth grows in a synchronous nonlinear manner within groups that have a stable wealth distribution and rank structure. If each group is considered as a club, we name it a ‘synchronization club’.

Keywords: C40; C51; E25; F01; F02; GDP; inequality; log-normal; power law; ‘synchronization club’

Document Type: Research Article


Affiliations: 1: Business School, Sun Yat-Sen University, Guangzhou, 510275, China 2: Michael G. Foster of Business, University of Washington, Seattle, WA, 98195-3226, USA

Publication date: July 23, 2014

More about this publication?

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more