This paper studies the effect of cultural attitudes on childcare provision, fertility, female labour force participation and the gender wage gap. Cross-country data show that fertility, female labour force participation and childcare are positively correlated with each other, while the wage gap seems to be negatively correlated with these variables. The paper presents a model with endogenous fe...

Current industry estimates of reproductive performance for cattle, sheep, and swine operations indicate that males contribute significantly to fertility failures. This appears to be due to the use of subfertile individuals and emphasizes the need for additional research in identifying characteristics of sperm that compromise fertilization. In theory, sperm characteristics, such as motility or t...

Multivariate analyses offer an explanation of the effects of demographic, socioeconomic, and biological factors on children ever born and child mortality in Pakistan in 1990-91. Data are obtained from the 1990-91 Pakistan Demographic and Fertility Survey. Household durables (10 items) are used as a proxy for economic status. Sex preference is measured as the percentage of females in the hous...

BACKGROUND Gender equity theory in relation to fertility argues that very low fertility is the result of incoherence in the levels of gender equity in individually oriented social institutions and family-oriented social institutions. The salience of gender to the fertility transition is strong in theory but not as strong in specification of testable hypotheses, as has been pointed out in the li...

OBJECTIVE Fertility declines as women age. Advancing maternal age increases pregnancy risks such as diabetes or hypertension. Studies suggest women are not aware of the risks of aging on fertility and pregnancy. The study objective was to assess women's knowledge of fertility and reproductive outcomes affected by aging. METHODS Prospective IRB approved survey of women (n=94) attending an obst...

BACKGROUND Chemotherapy and radiotherapy for childhood cancer can result in a decreased reproductive function. It is therefore important that paediatric oncologists discuss the possible impact of treatment on female fertility and available fertility preservation options with their patients. However, it is unknown what Dutch paediatric oncologists know about of the effect of cancer treatment on ...

In this article, I rely on new estimates of nineteenth-century mortality and the Integrated Public Use Microdata Series to construct new estimates of white fertility in the nineteenth-century United States. Unlike previous estimates that showed a long-term decline in overall fertility beginning at or before the turn of the nineteenth century, the new estimates suggest that U.S. fertility did no...

Crossbred ewes (1/2 Dorset, 1/4 Rambouillet, and 1/4 Finnsheep) from a flock being selected for spring fertility, defined as ability to lamb following ram exposure in May and June in Virginia (37 degrees N latitude), were used to study the duration of the seasonal anestrus. In the first 3 yr of the study (1992, 1993, and 1995), mature ewes were divergently selected based on EBV for fertility, a...

The relationship between sperm nuclear shape and bull fertility was determined. Two groups of bulls, 3 per group, were selected. Bulls differed in fertility based on lifetime nonreturn rates. Digital images of propidium iodide-stained sperm from each bull were collected and shape-evaluated by Fourier harmonic amplitudes 0 to 5. A discriminant function (P < .05) was constructed based on harmonic...

BACKGROUND Cancer treatment can diminish fertility in women and men. The need for fertility preservation is growing as increasing numbers of people survive cancer. Cryostorage of reproductive material to preserve potential for conception for cancer survivors has moved from being experimental to being a part of clinical management of women and men who are diagnosed with cancer in their reproduct...