Greenberg's Language Diversity Index
Description
This index is indicative of the challenge in a country to meet the right to education (Universal Declaration of Human Rights Article 26), and the right to information and expression (Article 19) in the mother tongue (See also International Mother Language Day, 21 February).
Value Range
A value between 0 and 1; 1 means total diversity, i.e. no two inhabitants of the country meeting at random would have the same mother tongue.
The index is close to one for Papua New Guinea (where 830 languages are spoken by about 6 million inhabitants).
For information on other countries, see Language diversity around the world (Daily Chart, The Economist, Feb. 15, 2012).
Data
Questions, answers and comments
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Sources
Language diversity around the world (Daily Chart, The Economist, Feb. 15, 2012)
460 item pages.