Geographical Roots of the Coevolution of Cultural and Linguistic Traits

Working Paper: NBER ID: w25289

Authors: Oded Galor; Mer Zak; Assaf Sarid

Abstract: This research explores the geographical origins of the coevolution of cultural and linguistic traits in the course of human history, relating the geographical roots of long-term orientation to the structure of the future tense, the agricultural determinants of gender bias to the presence of sex-based grammatical gender, and the ecological origins of hierarchical orientation to the existence of politeness distinctions. The study advances the hypothesis and establishes empirically that: (i) geographical characteristics that were conducive to higher natural return to agricultural investment contributed to the existing cross-language variations in the structure of the future tense, (ii) the agricultural determinants of gender gap in agricultural productivity fostered the existence of sex-based grammatical gender, and (iii) the ecological origins of hierarchical societies triggered the emergence of politeness distinctions.

Keywords: Cultural Traits; Linguistic Traits; Agricultural Investment; Gender Bias; Politeness Distinctions

JEL Codes: O10; Z10; Z13


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
geographical characteristics associated with higher potential crop returns in the urheimat of languages (Q15)presence of periphrastic future tense (D84)
caloric yield of plow-negative crops (Q42)probability of having sex-based grammatical gender (J16)
caloric yield of all crops (Q49)probability of having sex-based grammatical gender (J16)
ecological diversity in the urheimat (Q57)emergence of politeness distinctions in pronouns (Z13)

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