Son Preference, Sex Ratios, and Marriage Patterns
建立内生性别选择模型，指出儿子偏好不仅导致性别比例失衡，还可能使女性持续出生于低地位家庭并沦为永久底层阶级，并探讨了与年龄婚配差距、上嫁婚、种姓内婚和表亲婚姻等婚姻模式的关联。
Preference for sons over daughters is widespread in many Asian countries, for example, India, China, and South Korea. This paper models endogenous sex choice and shows that unbalanced sex ratios are but one of several possible consequences of a preference for sons. In particular, if parents want children who reproduce, nonrandom mating may cause women to be consistently born into low‐status families and thus relegated to a permanent underclass. The paper also discusses possible links between son preference and marriage patterns such as spousal age gaps, hypergamy (women marrying up), caste endogamy, and cousin marriages.