Sterilisation and the work careers of women

This paper uses Canadian data to study the relationship between sterilisation and the work careers of women. The study is motivated by the observation that childbearing and child rearing are the main reasons for the intermittency of womens ’work. Sterilisation may be correlated with a change in the labour market behaviour of women because it ends childbearing.There are three main findings. First, among women with children, sterilised women are more likely to work than non-sterilised women. Second,being sterilised is found to have a positive and significant effect on the earnings of women who had stopped working in the past but has an insignifican effect on the earnings of continuously employed women.Third,sterilised women and non-sterilised women do not differ in the probability that they had previously stopped working.However,among sterilised women who are currently working, most had experienced career interruptions that were initiated and completed before they became sterilised.

Risk, cohabitation and marriage

This paper introduces imperfect information,learning,and risk aversion in a two sided matching model.The modelprovides a theoreticalframework for the com- monly occurring phenomenon of cohabitation followed by marriage,and is con- sistent with empirical findings on these institutions.The paper has three major results.First,individuals set higher standards for marriage than for cohabitation. When the true worth of a cohabiting partner is revealed,some cohabiting unions are converted into marriage while others are not.Second,individuals cohabit within classes.Third,the premium that compensates individuals for the higher risk involved in marriage over a cohabiting partnership is derived.This premium can be decomposed into two parts.The first part is a function of the individual ’s level of risk aversion,while the second part is a function of the di difference in risk between marriage and cohabitation.

Risk, cohabitation and marriage

This paper introduces imperfect information,learning,and risk aversion in a two sided matching model.The modelprovides a theoreticalframework for the com- monly occurring phenomenon of cohabitation followed by marriage,and is con- sistent with empirical findings on these institutions.The paper has three major results.First,individuals set higher standards for marriage than for cohabitation. When the true worth of a cohabiting partner is revealed,some cohabiting unions are converted into marriage while others are not.Second,individuals cohabit within classes.Third,the premium that compensates individuals for the higher risk involved in marriage over a cohabiting partnership is derived.This premium can be decomposed into two parts.The first part is a function of the individual ’s level of risk aversion,while the second part is a function of the di difference in risk between marriage and cohabitation

Phenotypic stability for grain mold resistance, grain yield and its components in sorghum (Sorghum bicolor L.)

A total of 203 genotypes of grain sorghum including 8 lines and 21 testers and their 168 hybrids with 6 checks were evaluated for grain mold resistance, grain yield and its components in 2 locations in 2 years. Significant genotype and environmental interactions for Panicle Grain Mold Rate (PGMR), Threshed Grain Mold Rate (TGMR) and days to 50% flowering indicating differential behavior of genotypes under different environments for these characters. The hybrids are classified into 3 groups based on stability performance. Forty-six hybrids exhibited stable performance across environments in which top 5 hybrids (ICSA 384 × GD 65028, ICSA 370 × GD 65028, ICSA 384 × GD 65055, ICSA 369 × GD 65028 and ICSA 370 × GD 65055) with low PGMR scores. None of the resistant hybrids were adaptable to favorable environments. Two hybrids, ICSA 369 × GD 65055 and ICSA 369 × ICSR 89058, were suitable for unfavorable environments with low PGMR scores