Abstract: | Although the number of bilingual consumers is expanding, research on the impact of language on consumer decision making is scarce. The current research examines the endowment effect, which is a fundamental consumer decision‐making regularity, under native versus foreign language processing. I show that the endowment effect, which refers to higher valuation of a given product by sellers than buyers, is attenuated when sellers and buyers process information in a foreign language due to a decrease in sellers’ valuation of the product. I further document empirical evidence for the underlying mechanism of this finding. Thinking in a foreign language diminishes the impact of affective reactions on sellers’ judgment, which results in lowered sense of psychological ownership. This lowered sense of psychological ownership significantly decreases sellers’ valuation to a level comparable to the valuation of buyers. The implications of these results for theory and practice, and avenues for future research are discussed. |