For immigrants and minority communities navigating dominant-language societies, the decision to learn a majority language involves weighing the costs and benefits of language acquisition against social pressures within their own communities. While previous research has focused on binary choices—either learning a language fully or not at all—many immigrants achieve intermediate proficiency levels. In this paper, the authors examine how peer pressure and conformity within minority groups influence patterns of majority language acquisition when individuals can choose among three options: full learning, partial learning, or no learning of the majority language.
The authors develop a game-theoretical model analyzing language acquisition decisions in an economy with one majority group and multiple minority groups. The key innovation is incorporating a conformity factor, or, peer pressure costs that increase as an individual’s language choice deviates from their community’s average choice. Minority agents face different learning costs based on their linguistic aptitude (distributed uniformly from low to high cost) and receive communicative benefits from interacting with majority group members and other minorities who know the language. The authors analyze how varying levels of conformity pressure affects language learning preferences, and find the following:
- In a scenario where individuals can only choose to learn fully or not at all, the relationship between conformity and language learning is consistently monotonic: if learning is more popular without peer pressure, greater social pressure drives more minority agents to learn the majority language, and vice versa.
- In contrast, in a scenario where individuals can choose partial learning, outcomes show non-monotonic relationships: the number of full learners, partial learners, and non-learners can follow U-shaped or bell-shaped patterns as conformity pressure increases.
- When partial learning costs are small, the number of people choosing full fluency follows a U-shaped pattern as peer pressure increases—high when conformity is weak, low with moderate pressure, then high again with intense pressure, while the number choosing partial learning consistently increases with conformity.
- When partial learning costs are intermediate, the numbers of partial learners and non-learners can follow curved patterns (bell-shaped or U-shaped) depending on which choice is most popular in the community, while the least popular choice consistently decreases.
- When partial learning costs are large, the number choosing full fluency always decreases with conformity pressure and non-learners always increase, but partial learners can either increase or decrease depending on how many people were initially learning fully.
- This non-monotonicity can lead to complex dynamics, as even minor changes in language acquisition costs or communicative benefits can result in significant shifts in language acquisition patterns among minority agents.
These findings reveal that policy implications derived from traditional binary language acquisition models can be misleading when applied to real-world settings where multiple levels of proficiency are possible. Small adjustments in language program costs may unpredictably influence language acquisition patterns across minority groups due to conformity effects. Policymakers should recognize that social pressure within minority communities can either amplify or undermine the effectiveness of language programs in ways that simple cost-benefit analyses cannot predict. Effective language policies must account for peer dynamics and community norms, as interventions that ignore these social factors may produce counterintuitive results where increased support paradoxically reduces participation.