TY - JOUR AU - Almond,Douglas AU - Mazumder,Bhashkar AU - Ewijk,Reyn van TI - Fasting During Pregnancy and Children's Academic Performance JF - National Bureau of Economic Research Working Paper Series VL - No. 17713 PY - 2011 Y2 - December 2011 UR - http://www.nber.org/papers/w17713 L1 - http://www.nber.org/papers/w17713.pdf N1 - Author contact info: Douglas Almond Department of Economics Columbia University International Affairs Building, MC 3308 420 West 118th Street New York, NY 10027 Tel: 212/854-7248 Fax: 212/854-3239 E-Mail: da2152@columbia.edu Bhashkar Mazumder Federal Reserve Bank of Chicago 230 S. LaSalle Street Chicago, IL 60604 Tel: 312-322-8166 E-Mail: bmazumder@frbchi.org Reyn van Ewijk IMBEI University of Mainz Langenbeckstr. 1 55101 Mainz Germany E-Mail: vanewijk@imbei.uni-mainz.de AB - We consider the effects of daytime fasting by pregnant women during the lunar month of Ramadan on their children's test scores at age seven. Using English register data, we find that scores are .05 to .08 standard deviations lower for Pakistani and Bangladeshi students exposed to Ramadan in early pregnancy. These estimates are downward biased to the extent that Ramadan is not universally observed. We conclude that the effects of prenatal investments on test scores are comparable to many conventional educational interventions but are likely to be more cost effective and less subject to "fade out". ER -