摘要

20世纪80年代以来，中国面临长期的出生人口性别比失衡，男性的婚姻挤压现象日益严重，形成大量“被迫失婚”的大龄未婚男性群体，他们的性福利受到损害，性安全难以得到保障。本书即是在性别失衡和婚姻挤压的背景下，利用对比分析的方法，通过对大龄未婚男性的一般性行为、自慰行为、男男性行为和商业性行为的深入分析，揭示性别失衡对大龄未婚男性的性福利和性安全的影响。研究发现，由于成婚困难、性需求难以得到满足，大龄未婚男性普遍处于性匮乏的状态，自慰行为、同性性行为和商业性行为均成为他们弥补性匮乏、满足性需求的替代手段，从而对他们自身的性福利与性安全均产生重大影响。本书属于性别失衡微观后果的前瞻性研究，具有较大的学术价值和现实意义。

Abstract

China is facing an increasingly severe male marriage-squeeze, with millions of men who will be unable to marry and find a stable sexual partner owing to an increasing shortage of females in the marriage and sexuality market. This is not a new phenomenon but an increasingly critical one. The mismatched sizes of male and female cohorts now reaching marriageable age and the demographic manifestation of socio-cultural and behavioral discriminatory practices against women（in particular before their birth with increasingly imbalanced sex ratios at birth）have led to China becoming the world's most sex-imbalanced countries after India. This new demographic of single males is a growing concern. In particular, sexual health and wellbeing of men deprived of a stable sexual partner within marriage are in question, in a country where heterosexual marriage remains socially the prerequisite for marital-type cohabitation and family formation.

This book analyzes the sexual behaviors（partnered-sex, masturbation, same-sex sexual behaviors, commercial sex behaviors）of unmarried men and compares them to those of the married in order to evidence any behavioral difference. It appears that men who have difficulties in getting married and finding a stable sexual partner have a sexuality much less intense than married men in the same age-groups. However, they tend to resort more frequently to compensation practices such as masturbation, same-sex sexual behaviors and commercial sex. But as condom use is still very low among both the married and the unmarried, casual sex is apt to have an impact on their sexual wellbeing and sexual safety.

This book provides analysis at the intersection of demography and sociology of sexuality. It contributes to improving the knowledge about social and behavioral changes resulting from a large-scale and long-lasting numerical sex imbalance. It therefore brings significant academic and policy-oriented added value.