In this article we examine the impact of family structure on educational attainment in Hungary. Using a data-set collected in 1983 with information on all siblings of 17146 primary respondents, the effects of family size, birth order, and spacing were investigated. Hypotheses on these effects were based on sibling resource-dilution theory, which was modified for the case of Hungary, where educa...

Although it is widely acknowledged that the preference for sons is a barrier to a decline in fertility, considerable disagreement exists as to what actually happens to this preference when fertility declines in a region of low female autonomy. By analyzing the data from the National Family Health Survey (NFHS), we present evidence from northern India to show that the preference for sons is redu...

We consider a class of haploid population models with nonoverlapping generations and fixed population size N assuming that the family sizes within a generation are exchangeable random variables. A weak convergence criterion is established for a properly scaled ancestral process as N → ∞. It results in a full classification of the coalescent generators in the case of exchangeable reproduction. I...

Background: Lung cancer is considered as one of the most frequent cancers worldwide, and has been the cause of more than one <span style="font-variant...

Prediction of the dynamic crossflow ultrafiltration rate of a protein solution such as milk poses a complex non-linear problem a...

In this paper, we study ε-generalized weak s...

BACKGROUND Birth order is associated with outcomes such as birth weight and adult socioeconomic position (SEP), but little is known about the association with adult height. This potential birth order-height association is important because height predicts health, and because the association may help explain population-level height trends. We studied the birth order-height association and whethe...

How does the structure of the families behind business groups affect the group’s organization, governance, and performance? We construct a unique dataset of family trees and business groups for 93 of the largest business families in Thailand. We find a strong positive association between family size and family involvement in the ownership and control of the family businesses. The founders’ sons...

this survey is a descriptive analytic study which was carried out to assess the effects of population control programs on national health development in islamic republic of iran (1986-1998). the objectives of the study are: 1)to determine the effects of family planning program on national health development ( 1986-1998). 2)  to indicate the relationship between family planning coverage and some...