DOES MOTHER'S EDUCATION MATTER IN CHILD'S HEALTH? EVIDENCE FROM SOUTH AFRICA1

Using the 1993 South Africa Integrated Household Survey, this paper studies the effect that mother's education through the knowledge channel has on children's health using height for age Z‐scores as health measure. Under a two‐stage least square methodology we find that an increase in 4 years on mother's education (approximately 1 standard deviation) will lead to an increase of 0.6 standard deviations on her child's height for age Z‐score. We also find, as the medical literature suggests, support for the hypothesis that mother's education is more important for children older than 24 months of age.     

What do respondents mean when they report to be “citizens of the world”? Using probing questions to elucidate international differences in cosmopolitanism

The measurement of cosmopolitanism, i.e. the feeling of being a citizen of the world and the corresponding openness towards other cultures and peoples, has proved to be challenging and several scholars have questioned its validity. In this paper, we use web probing, i.e. implementing probing techniques of cognitive interviewing in web surveys, to elucidate the meaning of a frequently used direct measure of cosmopolitanism that asks respondents to what extent they feel they are “a citizen of the world”. As a single-item measure, it cannot be analyzed by statistical approaches such as confirmatory factor analysis. We compare results from Spain, Denmark, Hungary, Germany, Canada, and the U.S. Though the majority of the respondents show an understanding of the item which corresponds to the intention of the researchers, a large part of them does not. In addition, some country differences in the open answers make sense but other differences between countries are hard to explain. We conclude that asking people to what extent they feel they are “a citizen of the world” does not capture well the concept of cosmopolitanism as used in the literature.     

Further econometric evidence on the extent and sources of cost savings in competitively tendered contracts

Empirical Economics - By estimating a flexible nonlinear regression model of savings on an original dataset of service procurements conducted by the Spanish Armed Forces, this paper provides robust...