J. Richard Udry1 Demography volume 7, pages325–327(1970)Cite this article Abstract A comparison of the number of births in New York City nine months after the Great Blackout of 1965 with comparable periods for the previous five years shows no increase in births associated with the blackout. This is a preview of subscription content, log in to check access. Access options Buy single article Instant access to the full article PDF. US$ 39.95 This is the net price. Taxes to be calculated in checkout.