@TechReport{iza:izadps:dp15109,
            	author={Humlum, Maria Knoth and Morthorst, Marius Opstrup and Thingholm, Peter Rønø},
            	title={Sibling Spillovers and the Choice to Get Vaccinated: Evidence from a Regression Discontinuity Design},
            	year={2022},
	month={Feb},
            	institution={Institute of Labor Economics (IZA)},
            	address={Bonn},
            	type={IZA Discussion Paper},
            	number={15109},
            	url={https://www.iza.org/publications/dp15109},
	abstract={We investigate the effects of the introduction of a population-wide Human Papillomavirus (HPV) vaccination program on the vaccine take-up of the targeted group of 15-year-old girls and their older sisters. For identification, we rely on a regression discontinuity design and high-quality Danish administrative data to exploit that date of birth determines program eligibility. We find that the program increased the HPV vaccine take-up of both the targeted girls and their older sisters. While the direct effects of the program reduced vaccine-takeup inequality, the spillover effects, in contrast, contributed to an increase in vaccine take-up inequality.},
	keywords={health investments;health behavior;peer effects;sibling spillovers;HPV;vaccine;health inequality},
            }