Pub Date : 2025-07-30DOI: 10.1016/j.eeh.2025.101714
Torberg Falch, Bjarne Strøm
This paper examines the historical relationships between teacher shortages, teacher demand, and the business cycle using Norwegian data covering a period of >160 years (1861–2024). We find a procyclical pattern in teacher shortages, in particular for the post-WW2 period. The post-WW2 results imply that doubling the unemployment rate reduces teacher shortage by about 10 percent. The finding corroborates evidence from other countries that the public sector hires employees with higher skills during recessions than during booms. In addition, teacher demand increases teacher shortages, where the finding is similar in OLS-models, IV-models, and a panel data approach for the pre-WW2 period. The results indicate that a ten percent increase in teacher demand raises teacher shortages by about 30 percent in the pre-WW2 period and about 40 percent in the post-WW2 period. The increased effects of teacher demand and the business cycles on teacher shortages over the 160-year-long period appear consistent with the centralization of school financing and teacher wage setting that took place after WW2.
{"title":"Teacher shortages, the business cycle, and teacher demand: A long-run perspective","authors":"Torberg Falch, Bjarne Strøm","doi":"10.1016/j.eeh.2025.101714","DOIUrl":"10.1016/j.eeh.2025.101714","url":null,"abstract":"<div><div>This paper examines the historical relationships between teacher shortages, teacher demand, and the business cycle using Norwegian data covering a period of >160 years (1861–2024). We find a procyclical pattern in teacher shortages, in particular for the post-WW2 period. The post-WW2 results imply that doubling the unemployment rate reduces teacher shortage by about 10 percent. The finding corroborates evidence from other countries that the public sector hires employees with higher skills during recessions than during booms. In addition, teacher demand increases teacher shortages, where the finding is similar in OLS-models, IV-models, and a panel data approach for the pre-WW2 period. The results indicate that a ten percent increase in teacher demand raises teacher shortages by about 30 percent in the pre-WW2 period and about 40 percent in the post-WW2 period. The increased effects of teacher demand and the business cycles on teacher shortages over the 160-year-long period appear consistent with the centralization of school financing and teacher wage setting that took place after WW2.</div></div>","PeriodicalId":47413,"journal":{"name":"Explorations in Economic History","volume":"98 ","pages":"Article 101714"},"PeriodicalIF":1.7,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-30DOI: 10.1016/j.eeh.2025.101715
María Gómez-León, Giacomo Gabbuti
This paper presents yearly estimates of income inequality in Italy from 1901 to 1950. By constructing dynamic social tables, we comprehensively assess inequality across all elements of Italian society and compare Italy with other countries over the same period. In a context of declining inequality across Europe, interwar Italy reveals a trajectory at odds with consolidated narratives: a sharp increase of inequality during World War I, a reversal during 1918–1922, a renewed rise after the Fascist takeover, and new peaks during World War II. Our results allow us to identify sizeable short-term distributive shocks and discuss the political economy of fascist Italy, reinforcing a reinterpretation of interwar inequality trends in Europe and the regressive nature of fascist regimes.
{"title":"Wars, Depression, and Fascism: Income Inequality in Italy, 1901-1950","authors":"María Gómez-León, Giacomo Gabbuti","doi":"10.1016/j.eeh.2025.101715","DOIUrl":"https://doi.org/10.1016/j.eeh.2025.101715","url":null,"abstract":"This paper presents yearly estimates of income inequality in Italy from 1901 to 1950. By constructing dynamic social tables, we comprehensively assess inequality across all elements of Italian society and compare Italy with other countries over the same period. In a context of declining inequality across Europe, interwar Italy reveals a trajectory at odds with consolidated narratives: a sharp increase of inequality during World War I, a reversal during 1918–1922, a renewed rise after the Fascist takeover, and new peaks during World War II. Our results allow us to identify sizeable short-term distributive shocks and discuss the political economy of fascist Italy, reinforcing a reinterpretation of interwar inequality trends in Europe and the regressive nature of fascist regimes.","PeriodicalId":47413,"journal":{"name":"Explorations in Economic History","volume":"14 1","pages":"101715"},"PeriodicalIF":2.3,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144898849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-26DOI: 10.1016/j.eeh.2025.101710
Joel Huesler
This paper quantifies how large-scale natural shocks impede human-capital accumulation when state capacity is weak. I assemble a new monthly panel (1892–1942) linking parish attendance, exam scores, and six-hourly HURDAT wind fields. Exploiting quasi-random timing and storm trajectories, I estimate causal impacts with (i) a distributed-lag DiD, (ii) a stacked event study, and (iii) a continuous-intensity triple-difference design. A category 2 hurricane cuts attendance by 3.6% and test scores by 3%, 90% of the exam loss flowing through storm-induced absences. Losses are larger in high-volatility, urban, and agriculture-dependent parishes; each prior hurricane since 1892 leaves a −1.4 pp legacy drop in attendance. Results are robust to alternative metrics, population-weighted damage, placebos, and Fisher tests.
{"title":"Natural disasters, missing pupils: Evidence from colonial Jamaica’s school system","authors":"Joel Huesler","doi":"10.1016/j.eeh.2025.101710","DOIUrl":"10.1016/j.eeh.2025.101710","url":null,"abstract":"<div><div>This paper quantifies how large-scale natural shocks impede human-capital accumulation when state capacity is weak. I assemble a new monthly panel (1892–1942) linking parish attendance, exam scores, and six-hourly HURDAT wind fields. Exploiting quasi-random timing and storm trajectories, I estimate causal impacts with (i) a distributed-lag DiD, (ii) a stacked event study, and (iii) a continuous-intensity triple-difference design. A category 2 hurricane cuts attendance by 3.6% and test scores by 3%, 90% of the exam loss flowing through storm-induced absences. Losses are larger in high-volatility, urban, and agriculture-dependent parishes; each prior hurricane since 1892 leaves a −1.4 pp legacy drop in attendance. Results are robust to alternative metrics, population-weighted damage, placebos, and Fisher tests.</div></div>","PeriodicalId":47413,"journal":{"name":"Explorations in Economic History","volume":"98 ","pages":"Article 101710"},"PeriodicalIF":1.7,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144766654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-09DOI: 10.1016/j.eeh.2025.101699
Gary W. Cox , Valentin Figueroa
A traditional argument that the Spanish Inquisition did not depress scientific research is that Spain experienced its Golden Age (1492–1657) after the Inquisition was formed (1478). Yet the arts, rather than the sciences, flourished; and we argue that the Inquisition had important chilling effects on the latter. Historically focused on persecuting suspected Jews, the Inquisition began refocusing its efforts on Protestantism, especially during the Council of Trent (1545–1563). The discovery of Protestant networks in two Spanish cities in 1557–58 helped fuel an abrupt increase in, and re-targeting of, inquisitorial activity. Scholars should have reacted by limiting their contacts and by exiting certain fields and institutions. To provide evidence for our account, we first document Spain’s decline in STEM fields, relative to the rest of Europe. We then provide the first systematic evidence on scholarly interactions among early modern Spanish book authors, documenting an immediate reduction in interactions after 1559, followed by a downward trend. We also document a significant reversal in a previously upward trend in affiliation with secular educational institutions. Since interacting with others working on similar problems is essential to progress in the sciences, our work helps explain the puzzling disjuncture between the glory of Spanish literary and visual arts during the Golden Age, on the one hand, and the poverty of its contributions to science, on the other.
{"title":"The Inquisition and the decline of science in Spain","authors":"Gary W. Cox , Valentin Figueroa","doi":"10.1016/j.eeh.2025.101699","DOIUrl":"10.1016/j.eeh.2025.101699","url":null,"abstract":"<div><div>A traditional argument that the Spanish Inquisition did <em>not</em> depress scientific research is that Spain experienced its Golden Age (1492–1657) after the Inquisition was formed (1478). Yet the arts, rather than the sciences, flourished; and we argue that the Inquisition had important chilling effects on the latter. Historically focused on persecuting suspected Jews, the Inquisition began refocusing its efforts on Protestantism, especially during the Council of Trent (1545–1563). The discovery of Protestant networks in two Spanish cities in 1557–58 helped fuel an abrupt increase in, and re-targeting of, inquisitorial activity. Scholars should have reacted by limiting their contacts and by exiting certain fields and institutions. To provide evidence for our account, we first document Spain’s decline in STEM fields, relative to the rest of Europe. We then provide the first systematic evidence on scholarly interactions among early modern Spanish book authors, documenting an immediate reduction in interactions after 1559, followed by a downward trend. We also document a significant reversal in a previously upward trend in affiliation with secular educational institutions. Since interacting with others working on similar problems is essential to progress in the sciences, our work helps explain the puzzling disjuncture between the glory of Spanish literary and visual arts during the Golden Age, on the one hand, and the poverty of its contributions to science, on the other.</div></div>","PeriodicalId":47413,"journal":{"name":"Explorations in Economic History","volume":"98 ","pages":"Article 101699"},"PeriodicalIF":2.6,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-26DOI: 10.1016/j.eeh.2025.101691
Chris Vickers , Nicolas L. Ziebarth
The wage controls of the National War Labor Board (NWLB) have been credited with contributing to the decline in income inequality from 1940 to 1950 that occurred along many different dimensions including across regions and occupations. We calculate an upper bound for the effect of the NWLB during this decade by assuming the controls were maximally binding. At the upper bound, the controls could explain an important fraction of cross-region convergence, but they likely had little effect on inequality between occupations. Moreover, because of sorting by race and education into occupations, the controls cannot explain much of the narrowing of the educational skill premium nor the racial gap. We conclude that the controls are not a “one size fits all” explanation for the Great Compression.
{"title":"Can the Great Compression be explained by Wartime Wage Controls?","authors":"Chris Vickers , Nicolas L. Ziebarth","doi":"10.1016/j.eeh.2025.101691","DOIUrl":"10.1016/j.eeh.2025.101691","url":null,"abstract":"<div><div>The wage controls of the National War Labor Board (NWLB) have been credited with contributing to the decline in income inequality from 1940 to 1950 that occurred along many different dimensions including across regions and occupations. We calculate an upper bound for the effect of the NWLB during this decade by assuming the controls were maximally binding. At the upper bound, the controls could explain an important fraction of cross-region convergence, but they likely had little effect on inequality between occupations. Moreover, because of sorting by race and education into occupations, the controls cannot explain much of the narrowing of the educational skill premium nor the racial gap. We conclude that the controls are not a “one size fits all” explanation for the Great Compression.</div></div>","PeriodicalId":47413,"journal":{"name":"Explorations in Economic History","volume":"98 ","pages":"Article 101691"},"PeriodicalIF":2.6,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144515917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-18DOI: 10.1016/j.eeh.2025.101683
Junichi Yamasaki
Railroad access may accelerate technological progress in the industrial sector through various theoretical channels. By digitizing novel datasets of factories and railroad networks in late 19th- and early 20th-century Japan and using the least-cost path between prioritized destinations as an instrument, I find that the distance from railroads in 1892 accounts for 34 percent of the growth in steam power adopted by factories from 1888 to 1902. I also find evidence supporting several mechanisms behind the reduced-form effect, such as the trade channel. The results suggest that railroad construction played a significant role in the rapid technological catch-up of Meiji Japan.
{"title":"Railroads and technology adoption in Meiji Japan","authors":"Junichi Yamasaki","doi":"10.1016/j.eeh.2025.101683","DOIUrl":"10.1016/j.eeh.2025.101683","url":null,"abstract":"<div><div>Railroad access may accelerate technological progress in the industrial sector through various theoretical channels. By digitizing novel datasets of factories and railroad networks in late 19th- and early 20th-century Japan and using the least-cost path between prioritized destinations as an instrument, I find that the distance from railroads in 1892 accounts for 34 percent of the growth in steam power adopted by factories from 1888 to 1902. I also find evidence supporting several mechanisms behind the reduced-form effect, such as the trade channel. The results suggest that railroad construction played a significant role in the rapid technological catch-up of Meiji Japan.</div></div>","PeriodicalId":47413,"journal":{"name":"Explorations in Economic History","volume":"97 ","pages":"Article 101683"},"PeriodicalIF":2.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-15DOI: 10.1016/j.eeh.2025.101701
Jason Fletcher , Hamid Noghanibehambari
Several research strands document the life-cycle impacts of lead exposure during early life. Yet little is known about the long-run effects of lead exposure during early life on old-age mortality outcomes. In this study, we employ Social Security Administration death records linked to the full-count 1940 census and document that birth-city lead status negatively affects later life old age longevity. These impacts are larger for cities with acidic water and older pipeline systems that allow higher lead levels to leach into drinking water. Further, we show that the impacts are almost exclusively concentrated on the lead status of the birth-city and not the city of residence later in life. An instrumental variable strategy suggests reductions in longevity associated with birth-city lead status of about 9.6 months. We also find education, socioeconomic standing, and income reductions during early adulthood as candidate mechanisms. Finally, we use WWII enlistment data and observe reductions in measures of cognitive ability among lead-exposed individuals.
{"title":"Early-life lead exposure and male longevity: Evidence from historical municipal water systems","authors":"Jason Fletcher , Hamid Noghanibehambari","doi":"10.1016/j.eeh.2025.101701","DOIUrl":"10.1016/j.eeh.2025.101701","url":null,"abstract":"<div><div>Several research strands document the life-cycle impacts of lead exposure during early life. Yet little is known about the long-run effects of lead exposure during early life on old-age mortality outcomes. In this study, we employ Social Security Administration death records linked to the full-count 1940 census and document that birth-city lead status negatively affects later life old age longevity. These impacts are larger for cities with acidic water and older pipeline systems that allow higher lead levels to leach into drinking water. Further, we show that the impacts are almost exclusively concentrated on the lead status of the birth-city and not the city of residence later in life. An instrumental variable strategy suggests reductions in longevity associated with birth-city lead status of about 9.6 months. We also find education, socioeconomic standing, and income reductions during early adulthood as candidate mechanisms. Finally, we use WWII enlistment data and observe reductions in measures of cognitive ability among lead-exposed individuals.</div></div>","PeriodicalId":47413,"journal":{"name":"Explorations in Economic History","volume":"97 ","pages":"Article 101701"},"PeriodicalIF":2.6,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144322527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-11DOI: 10.1016/j.eeh.2025.101697
Viktor Malein
This paper studies the economic impacts of land ownership concentration among the aristocratic elite in the Russian Empire. I document that areas with a higher concentration of noble land ownership were associated with lower levels of primary education during 1880–1911. Exploring the mechanisms, I show that by controlling local governments the landed elites decreased public spending on education, shifting the financial burden to peasant households in the 1880s–1890s. I also demonstrate that the extension of school provision through a government program of schooling subsidies after 1905 led to a relatively large increase in enrollment rates in regions with high noble landownership concentration, suggesting initial underinvestment in education in these areas. Finally, the paper identifies a significant negative influence of landed elites on industrial growth and firm productivity, with up to 56% of this effect attributable to the human capital channel.
{"title":"The economic power of elites, human capital, and industrial change in late Imperial Russia","authors":"Viktor Malein","doi":"10.1016/j.eeh.2025.101697","DOIUrl":"10.1016/j.eeh.2025.101697","url":null,"abstract":"<div><div>This paper studies the economic impacts of land ownership concentration among the aristocratic elite in the Russian Empire. I document that areas with a higher concentration of noble land ownership were associated with lower levels of primary education during 1880–1911. Exploring the mechanisms, I show that by controlling local governments the landed elites decreased public spending on education, shifting the financial burden to peasant households in the 1880s–1890s. I also demonstrate that the extension of school provision through a government program of schooling subsidies after 1905 led to a relatively large increase in enrollment rates in regions with high noble landownership concentration, suggesting initial underinvestment in education in these areas. Finally, the paper identifies a significant negative influence of landed elites on industrial growth and firm productivity, with up to 56% of this effect attributable to the human capital channel.</div></div>","PeriodicalId":47413,"journal":{"name":"Explorations in Economic History","volume":"97 ","pages":"Article 101697"},"PeriodicalIF":2.6,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144304956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-07DOI: 10.1016/j.eeh.2025.101694
Yi Jie Gwee , Hui Ren Tan
For much of the 19th century, Britain fought to suppress the trans-Atlantic slave trade, sending ships from the Royal Navy to intercept slavers along the African coast. Digitizing archival data, we show that this suppression campaign started small but grew in strength over time, eventually involving more than 14 percent of the Navy’s fleet. Exploiting the distance between slave voyages and British bases as well as when these bases were established, we find that the campaign raised the likelihood of capture among slavers but did not stop the slave trade as a whole. Instead, changes in the demand for slaves played a bigger role in ending the trade. Finally, we provide suggestive evidence that Britain persisted with its costly naval campaign for ideological reasons.
{"title":"The long campaign: Britain’s fight to end the slave trade","authors":"Yi Jie Gwee , Hui Ren Tan","doi":"10.1016/j.eeh.2025.101694","DOIUrl":"10.1016/j.eeh.2025.101694","url":null,"abstract":"<div><div>For much of the 19th century, Britain fought to suppress the trans-Atlantic slave trade, sending ships from the Royal Navy to intercept slavers along the African coast. Digitizing archival data, we show that this suppression campaign started small but grew in strength over time, eventually involving more than 14 percent of the Navy’s fleet. Exploiting the distance between slave voyages and British bases as well as when these bases were established, we find that the campaign raised the likelihood of capture among slavers but did not stop the slave trade as a whole. Instead, changes in the demand for slaves played a bigger role in ending the trade. Finally, we provide suggestive evidence that Britain persisted with its costly naval campaign for ideological reasons.</div></div>","PeriodicalId":47413,"journal":{"name":"Explorations in Economic History","volume":"97 ","pages":"Article 101694"},"PeriodicalIF":2.6,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144308052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-07DOI: 10.1016/j.eeh.2025.101700
William J. Collins , Andreas Ferrara , Price V. Fishback
World War II was one of the greatest crises in American history. The United States devoted an enormous amount of resources to fight the war with long range consequences for the economy. This is the introduction to a special issue on the impact of the U.S. involvement in World War II. It provides context for the papers in the issue. The papers address the experiences of veterans of various races and ethnicities later in life; the impact of the war on the longevity of black veterans and citizens; war programs devoted to providing care and education to young children; war bonds and their impact on the financial system; the influence of pipeline projects on development; the effect of wage regulations on the income distribution, and the effect of war mobilization on productivity gains at the national and regional levels.
{"title":"Introduction to special issue of explorations in economic history on the impacts of World War II on the U.S. economy","authors":"William J. Collins , Andreas Ferrara , Price V. Fishback","doi":"10.1016/j.eeh.2025.101700","DOIUrl":"10.1016/j.eeh.2025.101700","url":null,"abstract":"<div><div>World War II was one of the greatest crises in American history. The United States devoted an enormous amount of resources to fight the war with long range consequences for the economy. This is the introduction to a special issue on the impact of the U.S. involvement in World War II. It provides context for the papers in the issue. The papers address the experiences of veterans of various races and ethnicities later in life; the impact of the war on the longevity of black veterans and citizens; war programs devoted to providing care and education to young children; war bonds and their impact on the financial system; the influence of pipeline projects on development; the effect of wage regulations on the income distribution, and the effect of war mobilization on productivity gains at the national and regional levels.</div></div>","PeriodicalId":47413,"journal":{"name":"Explorations in Economic History","volume":"97 ","pages":"Article 101700"},"PeriodicalIF":2.6,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144471357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"历史学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}