Evan Roberts
Datos Biográficos
| ID | 3582771 |
|---|---|
| NOMBRE | Evan Roberts |
| NOMBRES | Evan |
| APELLIDO | Roberts |
| FIRMA | ROBERTS E |
| AFILIACIONES | University of Minnesota |
| ORCID | 0000-0001-5621-4823 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 34 |
| TOTAL DE CITAS | 151 |
| TOTAL COMO AUTOR | 34 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2002 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2026 |
| ÍNDICE H | 7 |
The decline of child stunting in 122 countries
INTRODUCTION: Child stunting, a measure of malnutrition, is a major global health challenge affecting 148.1 million children in 2022. Global stunting rates have declined from 47.2% in 1985 to 22.3% in 2022; however, trends before the mid-1980s are unclear, including whether child stunting was previously prevalent in current high-income countries (HICs). We conducted a systematic review of child growth studies before 1990 to reconstruct historical…
Causes, connections, and continuous measures
Historical family demography moves through its own life cycle. Early beginnings in cross-sectional regression analysis of samples grew into explicitly longitudinal approaches as family historians drew on life course concepts and analytical methods from contemporary social statistics. Realizing the potential of a full life course approach was long limited by the small numbers historians could reliably trace across time. In the mid-2020s, historica…
New data sources for research on the nineteenth-century United States
IPUMS has finalized databases for each of the United States population censuses from 1850 to 1880. These data are the result of collaborations between FamilySearch and Ancestry.com, which provided the raw data, and IPUMS, which enhanced the data with editing, standardized coding, inter-census harmonization, and documentation. We discuss the data capture process conducted by the nineteenth-century United States Census Office, construction of the m…
Ipums full count datasets of the United States censuses of mortality, 1850–1880
This article describes four new IPUMS datasets constructed from the 1850, 1860, 1870, and 1880 Censuses of Mortality of the United States. We discuss the creation of the datasets, the variables included in each census year, and their potential for social science research. We highlight several limitations in the data and caution users about potential biases. Finally, we illustrate the usefulness of the new data by analyzing the relationship betwee…
Finding families near and far in Canada and the United States
La ségrégation résidentielle de la population canadienne aux États-Unis, 1880-1930
Près d'un million de Canadiens français vivaient aux États-Unis au début du 20e siècle. Dans certaines régions, comme la Nouvelle-Angleterre, ils formaient des communautés distinctes. Ailleurs, ils constituaient une petite partie de la population diversifiée du nord des États-Unis. Savoir si les groupes d'immigrants habitent près des leurs ou près des Américains de naissance constitue un indicateur important de l'intégration sociale dans la popul…
Weight gain is associated with shorter lifespan
Obesity is an increasing public health concern with important mortality consequences. Weight gain or maximum adult BMI, not BMI at one point in time, has been shown to be an important risk factor in cohorts studied recently during an era of rapid increase in population levels of overweight and obesity. However, there is limited evidence on individual weight trajectories from cohorts born before the mid-twentieth century. Archival world war milita…
Breathing new life into death certificates
The demographic and epidemiological transitions of the past 200 years are well documented at an aggregate level. Understanding differences in individual and group risks for mortality during these transitions requires linkage between demographic data and detailed individual cause of death information. This paper describes the digitization of almost 185,000 causes of death for Ohio to supplement demographic information in the Longitudinal, Intergen…
Life-Course Transitions in Rural Residence and Old-Age Mortality in Iowa, 1930–2014
Early-life conditions are associated with mortality in men, but not studied to the same extent in women. We add new evidence by studying a cohort of women born between 1916 and 1931 and followed for mortality between 1986 and 2013. Our sample from Iowa includes a significant number of rural women, from both farms and small towns. The long-term effects of growing up in a rural area were mixed: farmers' daughters lived longer than women growing up …
Childhood growth and socioeconomic outcomes in early adulthood evidence from the inter-war United States
Childhood malnutrition and its later life effects were important concerns in European and North American social policy in the early twentieth century. However, there have been few studies of the long-term socioeconomic consequences of malnutrition in childhood. We use a unique longitudinal dataset to provide credible causal estimates of the effects of childhood nutrition on early-adult educational and employment outcomes. Our dataset includes 2,4…
Disrupting Historical Life-Course Studies
An abstract is not available for this content so a preview has been provided. Please use the Get access link above for information on how to access this content
Long-Term Effects of Local-Area New Deal Work Relief in Childhood on Educational, Economic, and Health Outcomes Over the Life Course
The economic characteristics of one's childhood neighborhood have been found to determine long-term well-being. Policies enacted during childhood may change neighborhood trajectories and thus impact long-term outcomes for children. We use individual-level data from the Wisconsin Longitudinal Study to examine the enduring consequences of childhood exposure to local-area New Deal emergency employment work-relief activity. Our outcomes include adole…
The mortality risk of being overweight in the twentieth century
‘One big club of which we are all members’
This paper examines the work and work culture of department store salespeople in New Zealand department stores. Following the management advice of American, British, and Australian experts New Zealand store managers cultivated the notion of a store family and imported welfare work practices aimed at creating happy employees and a culture of consumption and modernity. The organization of New Zealand department stores was formally similar to those …
The Influence of Kin Proximity on the Reproductive Success of American Couples, 1900–1910
Children require a large amount of time, effort, and resources to raise. Physical help, financial contributions, medical care, and other types of assistance from kin and social network members allow couples to space births closer together while maintaining or increasing child survival. We examine the impact of kin availability on couples' reproductive success in the early twentieth-century United States with a panel data set of over 3.1 million c…
Fertility decline in the United States, 1850-1930
Fertility decline in the United States, 1850-1930
De 1835 à 1935, la fécondité aux États-Unis a chuté de 7 enfants par femme à 2,1. Le dépouillement intégral du recensement américain réalisé par IPUMS pour les années 1850, 1880, 1910 et 1930 permet d’analyser très finement cette baisse. Pour cela, nous construisons des modèles inclusifs de la fécondité des couples qui prennent en compte une très large variété de facteurs économiques, sociaux, culturels et familiaux, y compris des mesures de la r…
The Effects of Education on Mortality
Does education change people’s lives in a way that delays mortality? Or is education primarily a proxy for unobserved endowments that promote longevity? Most scholars conclude that the former is true, but recent evidence based on Danish twin data calls this conclusion into question. Unfortunately, these potentially field-changing findings—that obtaining additional schooling has no independent effect on survival net of other hard-to-observe charac…
Across the Atlantic and Back
Between 1825 and 1960 900,000 Norwegians emigrated. Before 1930 more than 95 per cent went to the United States. The rate of return to Norway was low in comparison to many other nations who sent large numbers to the US after 1880. High quality census enumerations in both countries, that are now available in electronic format, allow the possibility of reconstructing the lives and voyages of some of these migrants. Even with a low rate of return-mi…
"Big Data" in Economic History
Big data is an exciting prospect for the field of economic history, which has long depended on the acquisition, keying, and cleaning of scarce numerical information about the past. This article examines two areas in which economic historians are already using big data - population and environment - discussing ways in which increased frequency of observation, denser samples, and smaller geographic units allow us to analyze the past with greater pr…
Historical Census Record Linkage
For the past 80 years, social scientists have been linking historical censuses across time to study economic and geographic mobility. In recent decades, the quantity of historical census record linkage has exploded, owing largely to the advent of new machine-readable data created by genealogical organizations. Investigators are examining economic and geographic mobility across multiple generations and also engaging many new topics. Several analys…
The impact of kin availability, parental religiosity, and nativity on fertility differentials in the late 19th-century United States
METHODS: Most quantitative research on fertility decline in the United States ignores the potential impact of cultural and familial factors. We rely on new complete-count data from the 1880 U.S. census to construct couple-level measures of nativity/ethnicity, religiosity, and kin availability. We include these measures with a comprehensive set of demographic, economic, and contextual variables in Poisson regression models of net marital fertility…
Family structure and childhood anthropometry in Saint Paul, Minnesota in 1918
Concern with childhood nutrition prompted numerous surveys of children's growth in the United States after 1870. The Children's Bureau's 1918 "Weighing and Measuring Test" measured two million children to produce the first official American growth norms. Individual data for 14,000 children survives from the Saint Paul, Minnesota survey whose stature closely approximated national norms. As well as anthropometry the survey recorded exact ages, stre…
Physical growth and ethnic inequality in New Zealand prisons, 1840–1975
The British colonization of New Zealand after 1840 was marked by an unusual concern compared to other settler colonies for incorporating the indigenous population Māori population into the new society. But despite a continuing political rhetoric of protection and sovereignty Māori have historically had lower living standards and, since the 1920s, higher rates of incarceration than European-descended New Zealanders (Pākehā). In this paper we exami…
The Whangaroa Incident, 16 July 1824 A European–Māori Encounter and Its Many Incarnations
This paper examines an incident in 1824 in which the Ngāti Pou of Whangaroa Harbour (New Zealand) boarded a European ship, holding its crew and three missionaries captive for two hours. During the 19th century the incident was retold approximately 30 times in Europe and America. This paper describes the original incident from primary sources and then discusses how the various incarnations of the story enabled different authors to draw diverse mor…
The North Atlantic Population Project
The North Atlantic Population Project (NAPP) is a massive database of historical census microdata from European and North American countries. The backbone of the project is the unique collection of completely digitized censuses providing information on the entire enumerated populations of each country. In addition, for some countries, the NAPP includes sample data from surrounding census years. In this article, the authors provide a brief history…
Historical Census Record Linkage
For the past 80 years, social scientists have been linking historical censuses across time to study economic and geographic mobility. In recent decades, the quantity of historical census record linkage has exploded, owing largely to the advent of new machine-readable data created by genealogical organizations. Investigators are examining economic and geographic mobility across multiple generations and also engaging many new topics. Several analys…
The impact of kin availability, parental religiosity, and nativity on fertility differentials in the late 19th-century United States
METHODS: Most quantitative research on fertility decline in the United States ignores the potential impact of cultural and familial factors. We rely on new complete-count data from the 1880 U.S. census to construct couple-level measures of nativity/ethnicity, religiosity, and kin availability. We include these measures with a comprehensive set of demographic, economic, and contextual variables in Poisson regression models of net marital fertility…
The Effects of Education on Mortality
Does education change people’s lives in a way that delays mortality? Or is education primarily a proxy for unobserved endowments that promote longevity? Most scholars conclude that the former is true, but recent evidence based on Danish twin data calls this conclusion into question. Unfortunately, these potentially field-changing findings—that obtaining additional schooling has no independent effect on survival net of other hard-to-observe charac…
The North Atlantic Population Project An Overview
The North Atlantic Population Project (NAPP) brings together complete-count census data from late-nineteenth-century Canada, Great Britain, Iceland, Norway, and the United States into a single harmonized database. When released in 2005, the final version of the database will include the records of nearly 90 million people. The project will consistently code all variables across the different countries, while still retaining important national var…
Occupational Classification in the North Atlantic Population Project
The North Atlantic Population Project (NAPP) is a complete-count data set of late-nineteenth-century censuses from Canada, Great Britain, Iceland, Norway, and the United States. One of the project's most challenging tasks is the coding and classification of 2 million distinct responses to occupational questions. Using the Historical International Standard Classification of Occupations (HISCO) as the basis for their classification scheme, the auth…
The Influence of Kin Proximity on the Reproductive Success of American Couples, 1900–1910
Children require a large amount of time, effort, and resources to raise. Physical help, financial contributions, medical care, and other types of assistance from kin and social network members allow couples to space births closer together while maintaining or increasing child survival. We examine the impact of kin availability on couples' reproductive success in the early twentieth-century United States with a panel data set of over 3.1 million c…
"Big Data" in Economic History
Big data is an exciting prospect for the field of economic history, which has long depended on the acquisition, keying, and cleaning of scarce numerical information about the past. This article examines two areas in which economic historians are already using big data - population and environment - discussing ways in which increased frequency of observation, denser samples, and smaller geographic units allow us to analyze the past with greater pr…
Family structure and childhood anthropometry in Saint Paul, Minnesota in 1918
Concern with childhood nutrition prompted numerous surveys of children's growth in the United States after 1870. The Children's Bureau's 1918 "Weighing and Measuring Test" measured two million children to produce the first official American growth norms. Individual data for 14,000 children survives from the Saint Paul, Minnesota survey whose stature closely approximated national norms. As well as anthropometry the survey recorded exact ages, stre…
Don't Sell Things, Sell Effects”
In the years before World War II, New Zealand department stores became increasingly influenced by American ideas about salesmanship. This involved a shift away from British precepts about retailing, which discouraged initiative by sales-people and emphasized service. Stores that adopted American ideas were trying to become more competitive and began to appeal to working- and middle-class consumers. They imported the concept of “suggestion selling…
Life-Course Transitions in Rural Residence and Old-Age Mortality in Iowa, 1930–2014
Early-life conditions are associated with mortality in men, but not studied to the same extent in women. We add new evidence by studying a cohort of women born between 1916 and 1931 and followed for mortality between 1986 and 2013. Our sample from Iowa includes a significant number of rural women, from both farms and small towns. The long-term effects of growing up in a rural area were mixed: farmers' daughters lived longer than women growing up …
Long-Term Effects of Local-Area New Deal Work Relief in Childhood on Educational, Economic, and Health Outcomes Over the Life Course
The economic characteristics of one's childhood neighborhood have been found to determine long-term well-being. Policies enacted during childhood may change neighborhood trajectories and thus impact long-term outcomes for children. We use individual-level data from the Wisconsin Longitudinal Study to examine the enduring consequences of childhood exposure to local-area New Deal emergency employment work-relief activity. Our outcomes include adole…
New data sources for research on the nineteenth-century United States
IPUMS has finalized databases for each of the United States population censuses from 1850 to 1880. These data are the result of collaborations between FamilySearch and Ancestry.com, which provided the raw data, and IPUMS, which enhanced the data with editing, standardized coding, inter-census harmonization, and documentation. We discuss the data capture process conducted by the nineteenth-century United States Census Office, construction of the m…
Breathing new life into death certificates
The demographic and epidemiological transitions of the past 200 years are well documented at an aggregate level. Understanding differences in individual and group risks for mortality during these transitions requires linkage between demographic data and detailed individual cause of death information. This paper describes the digitization of almost 185,000 causes of death for Ohio to supplement demographic information in the Longitudinal, Intergen…
Childhood growth and socioeconomic outcomes in early adulthood evidence from the inter-war United States
Childhood malnutrition and its later life effects were important concerns in European and North American social policy in the early twentieth century. However, there have been few studies of the long-term socioeconomic consequences of malnutrition in childhood. We use a unique longitudinal dataset to provide credible causal estimates of the effects of childhood nutrition on early-adult educational and employment outcomes. Our dataset includes 2,4…
The mortality risk of being overweight in the twentieth century
Physical growth and ethnic inequality in New Zealand prisons, 1840–1975
The British colonization of New Zealand after 1840 was marked by an unusual concern compared to other settler colonies for incorporating the indigenous population Māori population into the new society. But despite a continuing political rhetoric of protection and sovereignty Māori have historically had lower living standards and, since the 1920s, higher rates of incarceration than European-descended New Zealanders (Pākehā). In this paper we exami…
Birth weight and adult health in historical perspective
Gender in Store
Explanations for the weakness of retail employees' unions have often emphasised that a high proportion of salespeople were women with low attachment to the labour force and unions. Comparing the experience of salespeople's unions in Wellington (New Zealand) and Saint Paul (Minnesota), this paper shows instead that perceptions of women as consumers shaped the political environment in which retail unions tried to control working hours. After 1930s …
Ipums full count datasets of the United States censuses of mortality, 1850–1880
This article describes four new IPUMS datasets constructed from the 1850, 1860, 1870, and 1880 Censuses of Mortality of the United States. We discuss the creation of the datasets, the variables included in each census year, and their potential for social science research. We highlight several limitations in the data and caution users about potential biases. Finally, we illustrate the usefulness of the new data by analyzing the relationship betwee…
Gender in Store
Explanations for the weakness of retail employees' unions have often emphasised that a high proportion of salespeople were women with low attachment to the labour force and unions. Comparing the experience of salespeople's unions in Wellington (New Zealand) and Saint Paul (Minnesota), this paper shows instead that perceptions of women as consumers shaped the political environment in which retail unions tried to control working hours. After 1930s …
The North Atlantic Population Project An Overview
The North Atlantic Population Project (NAPP) brings together complete-count census data from late-nineteenth-century Canada, Great Britain, Iceland, Norway, and the United States into a single harmonized database. When released in 2005, the final version of the database will include the records of nearly 90 million people. The project will consistently code all variables across the different countries, while still retaining important national var…
Occupational Classification in the North Atlantic Population Project
The North Atlantic Population Project (NAPP) is a complete-count data set of late-nineteenth-century censuses from Canada, Great Britain, Iceland, Norway, and the United States. One of the project's most challenging tasks is the coding and classification of 2 million distinct responses to occupational questions. Using the Historical International Standard Classification of Occupations (HISCO) as the basis for their classification scheme, the auth…
Don't Sell Things, Sell Effects”
In the years before World War II, New Zealand department stores became increasingly influenced by American ideas about salesmanship. This involved a shift away from British precepts about retailing, which discouraged initiative by sales-people and emphasized service. Stores that adopted American ideas were trying to become more competitive and began to appeal to working- and middle-class consumers. They imported the concept of “suggestion selling…
Physical Stature in Nineteenth‐century New Zealand
During the late nineteenth century, the physical stature of New Zealand‐born men stagnated, despite an apparently beneficial public health environment and growth in per‐capita incomes. We examine trends and differentials in male stature through World War I enlistment and casualty records. Stature varied by social class, with professionals and men in rural occupations substantially taller than their peers. There is not enough evidence to show that…
We Won, You Lost, Eat That
Paul Goldsmith , We Won, You Lost, Eat That!: A Political History of Tax in New Zealand since 1840 . Auckland : David Ling Publishing , 2008 . 384 pp., illustrations. ISBN : 978 1 877378 22 5 . Paperback NZ$39.99 . Prolific Auckland author Paul Goldsmith has managed in this book to do something even economic historians might have wondered were possible: to write a lengthy and yet still entertaining history of taxation. The route to this achieveme…
The North Atlantic Population Project
The North Atlantic Population Project (NAPP) is a massive database of historical census microdata from European and North American countries. The backbone of the project is the unique collection of completely digitized censuses providing information on the entire enumerated populations of each country. In addition, for some countries, the NAPP includes sample data from surrounding census years. In this article, the authors provide a brief history…
Rosie the Riveter's Job Market
In this article, the authors examine classified advertising for employment in Los Angeles during World War II. There is no prior research on the role of classified advertising in wartime labor markets, despite the importance of World War II to narratives of change in women's work in the United States. In contrast to the iconic Rosie the Riveter advertisements, which promoted change in women's occupations, classified advertisements show important …
The Whangaroa Incident, 16 July 1824 A European–Māori Encounter and Its Many Incarnations
This paper examines an incident in 1824 in which the Ngāti Pou of Whangaroa Harbour (New Zealand) boarded a European ship, holding its crew and three missionaries captive for two hours. During the 19th century the incident was retold approximately 30 times in Europe and America. This paper describes the original incident from primary sources and then discusses how the various incarnations of the story enabled different authors to draw diverse mor…
Birth weight and adult health in historical perspective
Physical growth and ethnic inequality in New Zealand prisons, 1840–1975
The British colonization of New Zealand after 1840 was marked by an unusual concern compared to other settler colonies for incorporating the indigenous population Māori population into the new society. But despite a continuing political rhetoric of protection and sovereignty Māori have historically had lower living standards and, since the 1920s, higher rates of incarceration than European-descended New Zealanders (Pākehā). In this paper we exami…
Family structure and childhood anthropometry in Saint Paul, Minnesota in 1918
Concern with childhood nutrition prompted numerous surveys of children's growth in the United States after 1870. The Children's Bureau's 1918 "Weighing and Measuring Test" measured two million children to produce the first official American growth norms. Individual data for 14,000 children survives from the Saint Paul, Minnesota survey whose stature closely approximated national norms. As well as anthropometry the survey recorded exact ages, stre…
The impact of kin availability, parental religiosity, and nativity on fertility differentials in the late 19th-century United States
METHODS: Most quantitative research on fertility decline in the United States ignores the potential impact of cultural and familial factors. We rely on new complete-count data from the 1880 U.S. census to construct couple-level measures of nativity/ethnicity, religiosity, and kin availability. We include these measures with a comprehensive set of demographic, economic, and contextual variables in Poisson regression models of net marital fertility…
Across the Atlantic and Back
Between 1825 and 1960 900,000 Norwegians emigrated. Before 1930 more than 95 per cent went to the United States. The rate of return to Norway was low in comparison to many other nations who sent large numbers to the US after 1880. High quality census enumerations in both countries, that are now available in electronic format, allow the possibility of reconstructing the lives and voyages of some of these migrants. Even with a low rate of return-mi…
"Big Data" in Economic History
Big data is an exciting prospect for the field of economic history, which has long depended on the acquisition, keying, and cleaning of scarce numerical information about the past. This article examines two areas in which economic historians are already using big data - population and environment - discussing ways in which increased frequency of observation, denser samples, and smaller geographic units allow us to analyze the past with greater pr…
Historical Census Record Linkage
For the past 80 years, social scientists have been linking historical censuses across time to study economic and geographic mobility. In recent decades, the quantity of historical census record linkage has exploded, owing largely to the advent of new machine-readable data created by genealogical organizations. Investigators are examining economic and geographic mobility across multiple generations and also engaging many new topics. Several analys…
Fertility decline in the United States, 1850-1930
Fertility decline in the United States, 1850-1930
De 1835 à 1935, la fécondité aux États-Unis a chuté de 7 enfants par femme à 2,1. Le dépouillement intégral du recensement américain réalisé par IPUMS pour les années 1850, 1880, 1910 et 1930 permet d’analyser très finement cette baisse. Pour cela, nous construisons des modèles inclusifs de la fécondité des couples qui prennent en compte une très large variété de facteurs économiques, sociaux, culturels et familiaux, y compris des mesures de la r…
The Effects of Education on Mortality
Does education change people’s lives in a way that delays mortality? Or is education primarily a proxy for unobserved endowments that promote longevity? Most scholars conclude that the former is true, but recent evidence based on Danish twin data calls this conclusion into question. Unfortunately, these potentially field-changing findings—that obtaining additional schooling has no independent effect on survival net of other hard-to-observe charac…
‘One big club of which we are all members’
This paper examines the work and work culture of department store salespeople in New Zealand department stores. Following the management advice of American, British, and Australian experts New Zealand store managers cultivated the notion of a store family and imported welfare work practices aimed at creating happy employees and a culture of consumption and modernity. The organization of New Zealand department stores was formally similar to those …
The Influence of Kin Proximity on the Reproductive Success of American Couples, 1900–1910
Children require a large amount of time, effort, and resources to raise. Physical help, financial contributions, medical care, and other types of assistance from kin and social network members allow couples to space births closer together while maintaining or increasing child survival. We examine the impact of kin availability on couples' reproductive success in the early twentieth-century United States with a panel data set of over 3.1 million c…
Life-Course Transitions in Rural Residence and Old-Age Mortality in Iowa, 1930–2014
Early-life conditions are associated with mortality in men, but not studied to the same extent in women. We add new evidence by studying a cohort of women born between 1916 and 1931 and followed for mortality between 1986 and 2013. Our sample from Iowa includes a significant number of rural women, from both farms and small towns. The long-term effects of growing up in a rural area were mixed: farmers' daughters lived longer than women growing up …
Childhood growth and socioeconomic outcomes in early adulthood evidence from the inter-war United States
Childhood malnutrition and its later life effects were important concerns in European and North American social policy in the early twentieth century. However, there have been few studies of the long-term socioeconomic consequences of malnutrition in childhood. We use a unique longitudinal dataset to provide credible causal estimates of the effects of childhood nutrition on early-adult educational and employment outcomes. Our dataset includes 2,4…
Disrupting Historical Life-Course Studies
An abstract is not available for this content so a preview has been provided. Please use the Get access link above for information on how to access this content
Long-Term Effects of Local-Area New Deal Work Relief in Childhood on Educational, Economic, and Health Outcomes Over the Life Course
The economic characteristics of one's childhood neighborhood have been found to determine long-term well-being. Policies enacted during childhood may change neighborhood trajectories and thus impact long-term outcomes for children. We use individual-level data from the Wisconsin Longitudinal Study to examine the enduring consequences of childhood exposure to local-area New Deal emergency employment work-relief activity. Our outcomes include adole…
Sociology (21 obras) · Population (20 obras) · Demography (18 obras) · Demography (16 obras) · Geography (13 obras) · Political science (11 obras) · Economics (10 obras) · Census (8 obras) · Computer Science (8 obras) · History (8 obras)