The Economic Journal • Vol/Iss. ueab065 • Oxford University Press • • Published In • Pages: 1-28 •
High land productivity variation will be associated with less language difference between neighboring ethnic groups.
The author replicated the test with a “sibling-sample estimate” to account for language differences between ancestral relationships (vertical transmission of language). The results remained significant (p<.01, b= -.188 to -.088).
|Multiple regression||Supported||p<.01||post-1500: b=-.100; pre-1500: b= -.061||UNKNOWN|