International Monetary Fund (2017) World Economic Outlook Database.
http://www.imf.org/external/pubs/ft/weo/2017/01/
weodata/weorept.aspx?sy=2016&ey=2016&ssd=1&sort
=country&ds=.&br=1&pr1.x=50&pr1.y=6&c=213%2C1
93%2C273%2C223%2C156%2C924%2C922%2C456%2C1
32%2C199%2C134%2C534%2C536%2C136%2C186
%2C158%2C112%2C542%2C111&s=NGDPD%2CNG
DPDPC%2CPPPGDP%2CPPPPC%2CLP&grp=0&a

has been cited by the following article:

• TITLE: On the Optimal Trade Tariffs among Nations

  AUTHORS: Luis F. Copertari

  KEYWORDS: Optimization, Linear Programming, Trade, Tariffs

  JOURNAL NAME: Open Access Library Journal, Vol.5 No.6, June 8, 2018

  ABSTRACT: An optimization model for calculating trade tariffs based on the idea of a zero-balanced trade account for countries around the world is proposed. Specifically, countries in the G20 group of nations were analyzed. The results are scrutinized and reflected upon, and some ideas about policy to follow are proposed. Both the mercantilist and Keynesian points of view are considered.