信息与避孕途径在青少年怀孕中的互补作用
The complementary role of information and contraceptive access in teen pregnancy
Journal of Development Economics · 2026 · [{"name": "Sevin Kaytan", "affiliation": ["Centro de Estudios Monetarios y Financieros"]}, {"name": "Stwarth Piedra-Bonilla", "affiliation": ["Centro de Estudios Monetarios y Financieros"]}, {"name": "Tom Zohar", "affiliation": ["Centro de Estudios Monetarios y Financieros"]}]
中文摘要
我们考察信息摩擦如何影响避孕供给项目的有效性。我们研究了哥斯达黎加的一项举措, 该举措结合了两大支柱: 免费获得长效可逆避孕药具(LARC); 以及一场量身定制的信息宣传活动, 以提高认识并纠正基线误解。利用行政数据和该举措的地理差异, 我们发现青少年生育率下降了 16%。我们表明信息与可及性互为补充: 同时接触两大支柱的地区, 其生育率下降幅度大幅高于仅能获得避孕药具的地区。利用关于性行为的调查, 我们表明该举措将信息来源从个人社交网络转向医疗卫生专业人员, 从而修正了关于性健康的误解。
Abstract
We investigate how information frictions affect the efficacy of contraception provision programs. We study a Costa-Rican initiative that combined two pillars: free access to long-acting-reversible contraceptives; and a tailored information campaign to raise awareness and correct for baseline misperceptions. Using administrative data and geographic variation in the initiative, we find a 16% decrease in the teen birth rate. We show information complements access: districts exposed to both pillars experience substantially larger reductions than those with contraception access alone. Using surveys on sexual behavior, we show the initiative shifted the information source from personal networks to healthcare professionals, amending misperceptions on sexual health.