The foreign-language discount effect: Using English increases intertemporal discount rates through more distant future perception
Although the foreign language effect (FLE) has been associated with more rational decision-making, we do not know whether it can exert this effect on intertemporal decisions. Native speakers of languages with a high future-time reference (FTR) have been found to produce higher rates of discounting, but we do not yet know whether intertemporal preferences can also be modulated when high FTR language is used by a foreign speaker. Across two experiments (N=486), we found that switching from a low-FTR native language (Chinese) to a high-FTR foreign language (English) was consistently linked with higher rates of discounting, what we call the foreign-language discount effect. These results, which run counter to the mechanism proposed by FLE (Experiment 1), show that a more distant future perception is the chief factor underlying the observed effect (Experiment 2). Our findings call for caution in the use of the FLE as a beneficial debiasing effect.