International organisation

Organisation for Economic Co-operation and Development

The industrialised economies' policy club, whose 38 members are the closest thing 'developed country' has to a definition with a list.

Abbreviation
OECD
Founded
1948-04-16
Headquarters
Paris
Member states
38 resolved, 38 published by the organisation
Official site
https://www.oecd.org/

Member states

Ordered by accession. A state with no recorded date is listed last rather than given one.

A joining date is the one the source records, which may be the day a treaty was signed or the day it took effect. States that joined together can therefore differ by months here.

StateJoinedListed by the source as
United Kingdom 1961-05-02 —
Portugal 1961-08-04 —
France 1961-08-07 —
Germany 1961-09-27 —
Greece 1961-09-30 —
Italy 1962-03-29 —
Finland 1969 —
Hungary 1996-05-07 —
Poland 1996-11-22 —
South Korea 1996-12-12 —
Israel 2010-09-07 —
Latvia 2016-06-16 —
Lithuania 2018-07-05 —
Colombia 2020 —
Costa Rica 2021-05 —
Australia not recorded —
Austria not recorded —
Belgium not recorded —
Canada not recorded —
Chile not recorded —
Czech Republic not recorded —
Estonia not recorded —
Iceland not recorded —
Ireland not recorded —
Japan not recorded —
Kingdom of Denmark not recorded —
Kingdom of the Netherlands not recorded Netherlands
Luxembourg not recorded —
Mexico not recorded —
New Zealand not recorded —
Norway not recorded —
Slovakia not recorded —
Slovenia not recorded —
Spain not recorded —
Sweden not recorded —
Switzerland not recorded —
Turkey not recorded —
United States not recorded —

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