AI 中文总结
基于日本大型婚姻平台机密记录，研究生日年龄更新对婚姻各阶段影响，发现年龄标签和筛选影响配对及婚姻数量，如申请数增加、求婚数在部分年龄段女性中下降，特定阶段核算显示不同性别有差异。
AI 中文摘要
年龄是搜索平台上的一个匹配特征和显著标签。利用来自大型日本婚姻平台的机密记录，作者研究生日年龄更新如何影响考虑、申请、关系进展和订婚情况。仅在生日时显示年龄更新，接收者在离开某些可接受年龄范围时进入其他范围，总体资格变化不大。申请数量通常会增加，申请从较年轻追求者转向较年长追求者。在31至40岁的十分之九的女性接收者年龄中，求婚数量下降，损失集中在进入早期约会时。在对三十多岁接收者的特定阶段核算中，无生日求婚数量对女性接收者比基准高12.9%，对男性接收者比基准低6.7%；女性接收者渠道中年轻男性的比例高4.8个百分点。年龄标签和筛选并非对偏好的中立窗口：它们决定谁与谁结婚以及形成多少婚姻。
英文摘要
Age is a match trait and a prominent label on search platforms. Using confidential records from a large Japanese marriage platform, I study how a birthday age update affects consideration, applications, relationship progression, and engagement. Only displayed age updates at birthdays. Receivers enter some acceptable-age ranges as they exit others, leaving only modest overall eligibility changes. Application counts often increase. Applications shift from younger to older suitors. Proposal counts fall at nine of ten female receiver ages \(31\text{--}40\), with losses concentrated at entry into early dating. In stage-specific accounting for receivers in their thirties, the no-birthday proposal count is \(12.9\) percent above the benchmark for female receivers and \(6.7\) percent below it for male receivers; the younger-man share in the female-receiver channel is \(4.8\) percentage points higher. Age labels and filters are not neutral windows onto preferences: they govern who marries whom and how many marriages form.
Comments40 pages, 34 page appendix
