Linguistic diversity index
Linguistic diversity index (LDI) or Greenberg’s diversity index is an index to measure how diverse a country’s languages are. It is on a scale of 1 to 0 with 1 indicating total diversity (that is, no two people have the same mother tongue) 0 indicates no diversity at all (that is, everyone has the same mother tongue). The computation of the diversity index is based on the population of each language as a proportion of the total population. The index cannot fully account for the vitality of languages. Also, The distinction between a language and a dialect is fluid and often political. A great number of languages are considered to be dialects of another language by some experts and separate languages by others.
Rankings by country
According to the United Nations Educational, Scientific and Cultural Organization (as of 2009) the LDI rankings for the following countries are:
Notes and References
- Including New Caledonia, a French Overseas Territory with a high level of Linguistic Diversity Index
- "Summary by country". Ethnologue. 1999-02-19. Retrieved 2013-09-05.
- UNESCO World Report – Investing in Cultural Diversity and Intercultural Dialogue