Sara Lopu
Biographic Data
| ID | 175597 |
|---|---|
| NAME | Sara Lopu |
| GIVEN NAMES | Sara |
| FAMILY NAME | Lopu |
| SIGNATURE | LOPU S |
| AFFILIATIONS | California Polytechnic State University |
| ORCID | 0000-0001-7453-1961 |
| VERIFIED | Yes |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 40 |
| AUTHOR COUNT | 12 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2017 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 4 |
The Educational Differentiation of African Birth Timing
As educational access has expanded across Africa, birth timing has remained quite stable. Using data representing 51 birth years and 34 countries, we show that these modest aggregate changes mask more dramatic changes within educational groups. Over time, educational attainment has become an increasingly salient predictor of birth timing, as highly educated women have delayed first births and lengthened subsequent birth intervals more. The educat…
The Demographic Transition, with Data from Brazil
The demographic transition—the process through which declines in mortality precede declines in fertility, leading to a period of population growth and the long-term restructuring of the age composition—holds remarkable power to explain the state of our social world. In this visualization, I employ Brazilian demographic measures dating back to the 1870s to depict the interplay between mortality, fertility, growth rates, dependency ratios, and tota…
No End to Hypergamy when Considering the Full Married Population
The worldwide expansion of female educational opportunities in recent decades has prompted demographers to assess the frequency with which women marry up (hypergamy) or down (hypogamy) with regard to education. A series of articles documented dramatic and nearly universal declines in hypergamy over time and across female educational advantage. However, this previous work investigated hypergamy only in the context of unequal educational pairings, …
Water insecurity, housing tenure, and the role of informal water services in Nairobi’s slum settlements
Migration and urban food accessibility in Mumbwa, a tertiary city of Zambia
Urbanization is occurring across sub-Saharan Africa (SSA), both from migration and natural growth, and often without urban planning, which can hamper the ability of households to obtain affordable, accessible food. Through stratified random sampling, we collected data from 135 households in Mumbwa, Zambia, to examine the relationship between migration and food accessibility in a small tertiary city. We investigate the relationship between socio-e…
Covid-19 lockdowns
Smallholder farmers' use of mobile phone services in central Kenya
Information and services delivered through mobile phones, 'm-services', have transformative potential to provide rural African farmers with important agro-meteorological information. However, a greater understanding is needed regarding the types of m-services available to farmers, how farmers access that information, and possible factors affecting m-service use. With a study of smallholder farming communities in central Kenya, we examine factors …
Has the vision of a gender quota rule been realized for community-based water management committees in Kenya
Intramarital Status Differences Across Africa's Educational Expansion
Objective:This article documents how intramarital differences in educational status vary across Africa's heterogeneous educational expansion, which has encompassed an enormous breadth of educational opportunities during the past 50 years.Background:Educational expansion influences intramarital status differences both by altering the educational composition of men and women and by reconfiguring the social conventions associated with a given educat…
From Privilege to Prevalence
In Africa and elsewhere, educated women tend to marry later than their less-educated peers. Beyond being an attribute of individual women, education is also an aggregate phenomenon: the social meaning of a woman’s educational attainment depends on the educational attainments of her age-mates. Using data from 30 countries and 246 birth cohorts across sub-Saharan Africa, we investigate the impact of educational context (the percentage of women in a…
Visualizing Africa's Educational Gender Gap
This figure depicts the gendered patterns of educational expansion across Africa. The horizontal axis displays educational access, and vertical lines represent educational gender gaps for 267 country-specific birth cohorts, representing adults born between 1941 and 1992 in 32 African countries. The gaps take on an almond shape. In early stages of educational expansion, boys enter school at higher rates than girls; female enrollment begins to catc…
Relatives in Residence
Children typically receive investments from their fathers, but absent fathers often invest at low levels. In a father's absence, what types of nonfathers invest heavily in children? This article investigates educational participation as a reflection of childhood investments on Ibo Island, Mozambique, where only one third of school-aged children live with their biological fathers. Father-present children generally attended school at the highest ra…
From Privilege to Prevalence
In Africa and elsewhere, educated women tend to marry later than their less-educated peers. Beyond being an attribute of individual women, education is also an aggregate phenomenon: the social meaning of a woman’s educational attainment depends on the educational attainments of her age-mates. Using data from 30 countries and 246 birth cohorts across sub-Saharan Africa, we investigate the impact of educational context (the percentage of women in a…
Intramarital Status Differences Across Africa's Educational Expansion
Objective:This article documents how intramarital differences in educational status vary across Africa's heterogeneous educational expansion, which has encompassed an enormous breadth of educational opportunities during the past 50 years.Background:Educational expansion influences intramarital status differences both by altering the educational composition of men and women and by reconfiguring the social conventions associated with a given educat…
Relatives in Residence
Children typically receive investments from their fathers, but absent fathers often invest at low levels. In a father's absence, what types of nonfathers invest heavily in children? This article investigates educational participation as a reflection of childhood investments on Ibo Island, Mozambique, where only one third of school-aged children live with their biological fathers. Father-present children generally attended school at the highest ra…
Covid-19 lockdowns
Visualizing Africa's Educational Gender Gap
This figure depicts the gendered patterns of educational expansion across Africa. The horizontal axis displays educational access, and vertical lines represent educational gender gaps for 267 country-specific birth cohorts, representing adults born between 1941 and 1992 in 32 African countries. The gaps take on an almond shape. In early stages of educational expansion, boys enter school at higher rates than girls; female enrollment begins to catc…
No End to Hypergamy when Considering the Full Married Population
The worldwide expansion of female educational opportunities in recent decades has prompted demographers to assess the frequency with which women marry up (hypergamy) or down (hypogamy) with regard to education. A series of articles documented dramatic and nearly universal declines in hypergamy over time and across female educational advantage. However, this previous work investigated hypergamy only in the context of unequal educational pairings, …
Has the vision of a gender quota rule been realized for community-based water management committees in Kenya
The Educational Differentiation of African Birth Timing
As educational access has expanded across Africa, birth timing has remained quite stable. Using data representing 51 birth years and 34 countries, we show that these modest aggregate changes mask more dramatic changes within educational groups. Over time, educational attainment has become an increasingly salient predictor of birth timing, as highly educated women have delayed first births and lengthened subsequent birth intervals more. The educat…
Water insecurity, housing tenure, and the role of informal water services in Nairobi’s slum settlements
Relatives in Residence
Children typically receive investments from their fathers, but absent fathers often invest at low levels. In a father's absence, what types of nonfathers invest heavily in children? This article investigates educational participation as a reflection of childhood investments on Ibo Island, Mozambique, where only one third of school-aged children live with their biological fathers. Father-present children generally attended school at the highest ra…
From Privilege to Prevalence
In Africa and elsewhere, educated women tend to marry later than their less-educated peers. Beyond being an attribute of individual women, education is also an aggregate phenomenon: the social meaning of a woman’s educational attainment depends on the educational attainments of her age-mates. Using data from 30 countries and 246 birth cohorts across sub-Saharan Africa, we investigate the impact of educational context (the percentage of women in a…
Visualizing Africa's Educational Gender Gap
This figure depicts the gendered patterns of educational expansion across Africa. The horizontal axis displays educational access, and vertical lines represent educational gender gaps for 267 country-specific birth cohorts, representing adults born between 1941 and 1992 in 32 African countries. The gaps take on an almond shape. In early stages of educational expansion, boys enter school at higher rates than girls; female enrollment begins to catc…
Has the vision of a gender quota rule been realized for community-based water management committees in Kenya
Intramarital Status Differences Across Africa's Educational Expansion
Objective:This article documents how intramarital differences in educational status vary across Africa's heterogeneous educational expansion, which has encompassed an enormous breadth of educational opportunities during the past 50 years.Background:Educational expansion influences intramarital status differences both by altering the educational composition of men and women and by reconfiguring the social conventions associated with a given educat…
Smallholder farmers' use of mobile phone services in central Kenya
Information and services delivered through mobile phones, 'm-services', have transformative potential to provide rural African farmers with important agro-meteorological information. However, a greater understanding is needed regarding the types of m-services available to farmers, how farmers access that information, and possible factors affecting m-service use. With a study of smallholder farming communities in central Kenya, we examine factors …
Migration and urban food accessibility in Mumbwa, a tertiary city of Zambia
Urbanization is occurring across sub-Saharan Africa (SSA), both from migration and natural growth, and often without urban planning, which can hamper the ability of households to obtain affordable, accessible food. Through stratified random sampling, we collected data from 135 households in Mumbwa, Zambia, to examine the relationship between migration and food accessibility in a small tertiary city. We investigate the relationship between socio-e…
Covid-19 lockdowns
Water insecurity, housing tenure, and the role of informal water services in Nairobi’s slum settlements
The Demographic Transition, with Data from Brazil
The demographic transition—the process through which declines in mortality precede declines in fertility, leading to a period of population growth and the long-term restructuring of the age composition—holds remarkable power to explain the state of our social world. In this visualization, I employ Brazilian demographic measures dating back to the 1870s to depict the interplay between mortality, fertility, growth rates, dependency ratios, and tota…
No End to Hypergamy when Considering the Full Married Population
The worldwide expansion of female educational opportunities in recent decades has prompted demographers to assess the frequency with which women marry up (hypergamy) or down (hypogamy) with regard to education. A series of articles documented dramatic and nearly universal declines in hypergamy over time and across female educational advantage. However, this previous work investigated hypergamy only in the context of unequal educational pairings, …
The Educational Differentiation of African Birth Timing
As educational access has expanded across Africa, birth timing has remained quite stable. Using data representing 51 birth years and 34 countries, we show that these modest aggregate changes mask more dramatic changes within educational groups. Over time, educational attainment has become an increasingly salient predictor of birth timing, as highly educated women have delayed first births and lengthened subsequent birth intervals more. The educat…
Economic growth (10 works) · Economics (10 works) · Demography (8 works) · Geography (8 works) · Sociology (8 works) · Population (7 works) · Demography (6 works) · Business (5 works) · Demographic economics (5 works) · Demographic Trends and Gender Preferences (5 works)