Research note: A socioeconomic index for the INCAP longitudinal study 1969-77.

In this note, we calculate and describe proxy measures that account for variation in standard of living across subjects in the Institute of Nutrition of Central America and Panama (INCAP) Longitudinal Study (1969-77), at the time of the original intervention. Using principal components analysis, we construct two linear indices from an array of household consumer durable goods and housing characteristics, measured at the nuclear family level in the 1975 cross-sectional census. The two indices perform well on three dimensions. First, they are internally coherent in that average ownership and quality of housing characteristics increase with the principal component score. Second, they are robust in that the different approaches yield similar results, for example, in classifying nuclear families into tertiles. And third, they are consistent in that they yield results similar to scores constructed by previous researchers. The indices can be used as background controls in analyses of the INCAP Longitudinal Study (1969-77) data and subsequent follow-up studies, including the Human Capital Study 2002-04. Several articles presented in this supplement to the Food and Nutrition Bulletin used the 1975 index.

Levels, correlates, and differences in human, physical, and financial assets brought into marriages by young Guatemalan adults.

This article examines marriage patterns among individuals who participated as children in a nutrition supplementation trial in Guatemala and were followed up in 2002-04, at ages 25-42 years. Of all 1,062 known and alive couples, 735, or 69%, responded fully to the marriage assets questionnaire. Focus of the analysis is on the birth cohorts born prior to 1974, a total of 1,058 intervention participants, among whom four-fifths of men (82%) and of women (78%) were married at the time of the 2002-04 survey. Basic patterns are examined in current marital status, age at first marriage and related milestones, human capital assets brought to marriage (e.g., schooling attainment, cognitive ability, literacy, and pre-marital work experience), and physical assets and savings accounts brought to marriage. Measures of husbands' human capital at marriage are positively correlated with wives' human capital, but are consistently higher. Husbands also bring substantially more physical and financial assets than wives. A number of interesting patterns emerge, including (1) changes in the composition of assets that women bring to marriage from physical to human assets, (2) declining gaps in age and premarital work experience between husbands and wives, and (3) increasing gaps in schooling attainment and cognitive ability between husbands and wives. Given conflicting directions of change in spousal gaps in human, physical and financial assets, their net effect on changes over time in the bargaining power of husbands and wives is uncertain and deserves further investigation.

Social and economic development and change in four Guatemalan villages: demographics, schooling, occupation, and assets.

This article uses census data and village histories to examine changes over the last 35 years in the four villages where the Institute of Nutrition of Central America and Panama (INCAP) Longitudinal Study (1969-77) was conducted and offers a rare picture of development and change in rural localities over a long period of time. In addition, by characterizing the environment in which the subjects of this study were raised, we provide context for and inputs into quantitative analyses of data collected at various points in time on these subjects. The villages have undergone massive demographic, social, and economic change. Initial differences have conditioned many of these changes, especially differences associated with agricultural potential and location. Originally these villages were rather isolated, but road and transportation access has improved substantially. The populations in the villages have more than doubled and also have aged. While marriage patterns have held steady, religious practice has changed a great deal. After many years of steady out-migration, three of the four villages are more recently experiencing net in-migration, a pattern associated with ease of access. Schooling access and outcomes also have improved, with average grades of schooling nearly tripling and literacy doubling to levels currently above national averages. Although agriculture remains an important component of individual livelihood strategies, non-agricultural sources of employment have become more important. Much of this change is associated with declining agricultural markets and increased access to non-agricultural jobs near the villages and in the capital. Accompanying these changes has been an improvement in living standards as measured by a number of indicators of household living conditions and consumer durable goods.

Parental Resources, Schooling Achievements, and Gender Schooling Gaps: Evidence of Change over 25 years in Rural Guatemala.

We use village census data and linear regression models to examine changes between 1975 and 2002 in the associations of parental resources with boys' and girls' schooling in four rural Guatemalan villages. Levels of schooling in 1975 were universally low for children 7-17 years. Large increases in schooling achievements occurred between 1975 and 2002. By 2002, schooling levels were comparable for younger boys and girls (7-12 years, N = 3,525) and favored older boys compared to older girls (13-17 years, N = 2,440) by about 0.5 grades. The associations of household standard of living and maternal schooling with schooling among girls diminished over time and became more comparable with these associations among boys, and the associations of household standard of living with schooling among older boys declined and became more comparable with these associations among girls. Thus, as increased social investments reduce the costs of schooling or increase the supply and quality of schooling to families, the magnitudes of the associations between parental resources and children's schooling decline and become more gender equitable at all ages. However, our results show that older boys may benefit more than older girls from social investments in schooling. These changes suggest potential needs to monitor gender gaps in schooling retention among older children, to insure gender equitable access to social investments in schooling, and to encourage parents to invest in schooling as joint measures to achieve greater schooling achievements of girls and boys.