Home > Publications . Search All . Browse All . Country . Browse PSC Pubs . PSC Report Series

PSC In The News

RSS Feed icon

Kruger says reports of phantom mobile phone ringing/vibrating more common among anxious

Stafford says too early to say whether stock market declines will curtail Americans' spending

Eisenberg says many colleges now train campus personnel to spot and refer troubled college students

Highlights

Call for papers: Conference on Integrating Genetics and the Social Sciences, Oct 21-22, 2016, CU-Boulder

PRB training program in policy communication for pre-docs. Application deadline, 2.28.2016

Call for proposals: PSID small grants for research on life course impacts on later life wellbeing

PSC News, fall 2015 now available

Next Brown Bag

Monday, Feb 1 at noon, 6050 ISR-Thompson
Sarah Miller

David Lam photo

Modeling Seasonality in Fecundability and Births

Publication Abstract

Lam, David, Jeffrey A. Miron, and Ann Riley. "Modeling Seasonality in Fecundability and Births." PSC Research Report No. 92-244. July 1992.

This paper uses a model of seasonal fluctuation in fecundability and births to analyze the plausibility of several proposed explanations of birth seasonality. We begin with a model of fecundability at the individual level that combines behavioral and biological components, with particular attention to the role of coital frequency, sperm concentration, and fetal loss. The individual level model is expanded into a model of seasonal fluctuations in total births at the population level, explicitly accounting for seasonal fluctuations in the size of the susceptible population. Simulation of the model suggest that fluctuations in the components of fecundability in response to extreme heat could plausibly generate changes in conception rates similar in magnitude to observed patterns. Little independent evidence exists, however, to confirm the effects of extreme heat on the components of fecundability.

Browse | Search : All Pubs | Next