Maybe Next Month? Temperature Shocks and Dynamic Adjustments in Birth Rates

We estimate the effects of temperature shocks on birth rates in the United States between 1931 and 2010. We find that days with a mean temperature above 80°F cause a large decline in birth rates 8 to 10 months later. Unlike prior studies, we demonstrate that the initial decline is followed by a partial rebound in births over the next few months, implying that populations mitigate some of the fertility cost by shifting conception month. This shift helps explain the observed peak in late-summer births in the United States. We also present new evidence that hot weather most likely harms fertility via reproductive health as opposed to sexual activity. Historical evidence suggests that air conditioning could be used to substantially offset the fertility costs of high temperatures.     

Organizations advocating for youth: the local advantage

Youth occupy a unique place in our democratic society. They must primarily rely on others to speak on their behalf as decisions are made about the allocation of resources within and across various youth-serving institutions. Advocacy organizations comprise crucial representational assets for all youth, but America's poorest children and youth especially need an effective voice to speak for and about them. Yet advocates for youth in urban areas face tough challenges since urban voters typically have few positive connections to youth. This article draws on three years of research focused on three organizations in the San Francisco Bay Area that have successfully advocated for better policies for youth. The authors explore the strategies that these organizations have employed to overcome the challenges they face, with particular attention to the advantages that follow from advocating at the local rather than at the state or federal level.     

Active parental consent in school-based research. An examination of ethical and methodological issues

To date, most school-based research has used passive parental consent. However, the Family Privacy Protection Act of 1995 aims to change these requirements. The proposed legislation requires written parental consent if minors are to be asked "sensitive" questions as part of any program or activity funded in whole or in part by the federal government. This act is representative of a growing trend toward restricting research involving minors. Whether or not this act is passed by Congress, two lines of concern are highlighted by this legislation. The first deals with ethical issues surrounding consent procedures. For instance, are parental rights compromised when active consent is not mandated? A second line of inquiry pertains to the effect of active consent procedures on response rates and sample bias. In this article, the authors discuss ethical issues surrounding passive and active consent procedures and then report response rates from two projects in which active consent procedures were implemented.