标题： 非参数估计婚介平台上的匹配效率和弹性：2014--2025 显示英文标题

标题： Nonparametric Estimation of Matching Efficiency and Elasticity in a Marriage Agency Platform: 2014--2025

摘要： 本文利用日本最大的结构化匹配平台IBJ的新数据，考察了日本婚姻市场的月度匹配效率。与行政或约会应用数据不同，IBJ根据经过验证的资料和确认的交往记录提供完整的搜索、交往和匹配日志。用户通过成本高昂的筛选过程高度选择性地进入严肃的婚姻搜索。该数据覆盖了全国年度结婚率的3.3%，提供了罕见的行为粒度。使用非参数方法，我估计了随时间变化的匹配函数和弹性。效率随着时间提高了三倍，展示了数字中介如何改变现代婚姻市场中的伴侣搜索。 显示英文摘要

摘要： This paper examines monthly matching efficiency in the Japanese marriage market using novel data from IBJ, the country's largest structured matching platform. Unlike administrative or dating app data, IBJ provides full search, dating, and matching logs based on verified profiles and confirmed engagements. Users are highly selected into serious marriage search via costly screening. Covering 3.3% of national marriages annually, the data offer rare behavioral granularity. Using a nonparametric approach, I estimate time-varying matching functions and elasticities. Efficiency rises threefold over time, illustrating how digital intermediation transforms partner search in modern marriage markets.