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Book
Southern (American) Hospitality : Italians in Argentina and the US during the Age of Mass Migration
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Year: 2019 Publisher: National Bureau of Economic Research

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No hay quinto malo
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Year: 2004 Publisher: S.l. s.n.

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Digital
Linking Individuals Across Historical Sources : a Fully Automated Approach
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Year: 2018 Publisher: Cambridge, Mass. National Bureau of Economic Research

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Linking individuals across historical datasets relies on information such as name and age that is both non-unique and prone to enumeration and transcription errors. These errors make it impossible to find the correct match with certainty. We suggest a fully automated method for linking historical datasets that enables researchers to create samples that minimize type I (false positives) and type II (false negatives) errors. The first step of the method uses the Expectation-Maximization (EM) algorithm, a standard tool in statistics, to compute the probability that each two observations correspond to the same individual. The second step uses these estimated probabilities to determine which records to use in the analysis. We provide codes to implement this method.


Digital
The Long-Term Spillover Effects of Changes in the Return to Schooling
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Year: 2018 Publisher: Cambridge, Mass. National Bureau of Economic Research

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We study the short and long-term spillover effects of a pay reform that substantially increased the returns to schooling in Israeli kibbutzim. This pay reform, which induced kibbutz students to improve their academic achievements during high school, spilled over to non-kibbutz members who attended schools with these kibbutz students. In the short run, peers of kibbutz students improved their high school outcomes and shifted to courses with higher financial returns. In the medium and long run, peers completed more years of postsecondary schooling and increased their earnings. We discuss three main spillover channels: diversion of teachers' instruction time towards peers, peer effects from improved schooling performance of kibbutz students, and the transmission of information about the returns to schooling. While each of these channels likely contributed to improving the outcomes of peers, we provide suggestive evidence that the estimates are more consistent with the effects operating mainly through transmission of information.


Book
Periodistas liberales del siglo XIX
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Year: 1936 Publisher: [Bogotá, : Editorial Minerva, s.a.,

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The Archaeology of 'Underdog Sites' in the Douro Valley : From Prehistory to the Modern Age.
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ISBN: 9781789699906 1789699908 1789699894 Year: 2021 Publisher: Oxford : Archaeopress,

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The Archaeology of 'Underdog Sites' in the Douro Valley brings together the best presentations from the eighth and ninth meetings of Archaeology of the Douro Valley, held in Avila and Astorga (Spain), respectively in 2018 and 2019. However, instead of a simple collection of articles, the aim of this publication is to show the importance of projects that have been left in the background despite obtaining interesting archaeological data about the occupation of this valley and its evolution. Moreover, we must take into account that many of these projects support new activity in a rural territory that is increasingly neglected politically and economically. Hence the use of the term 'underdog', defined as a person or group of people with less power or money than the rest of society. Overall, the volume provides a general and interdisciplinary view of the different types of occupation in the territory of the Douro Valley. The chapters are divided into four sections, three of them chronological: Prehistory and Protohistory; Antiquity and Late Antiquity; and the medieval and modern ages. The last section is thematic and includes diachronic studies, museology, and the archaeology of mining. Therefore, the present volume is a medium to showcase the latest research carried out in this important territory and to contribute to knowledge of its history, updating the archaeological state of the art in the valley and presenting results that may be used in the most diverse types of comparative studies --


Book
Automated Linking of Historical Data
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Year: 2019 Publisher: Cambridge, Mass. National Bureau of Economic Research

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The recent digitization of complete count census data is an extraordinary opportunity for social scientists to create large longitudinal datasets by linking individuals from one census to another or from other sources to the census. We evaluate different automated methods for record linkage, performing a series of comparisons across methods and against hand linking. We have three main findings that lead us to conclude that automated methods perform well. First, a number of automated methods generate very low (less than 5%) false positive rates. The automated methods trace out a frontier illustrating the tradeoff between the false positive rate and the (true) match rate. Relative to more conservative automated algorithms, humans tend to link more observations but at a cost of higher rates of false positives. Second, when human linkers and algorithms use the same linking variables, there is relatively little disagreement between them. Third, across a number of plausible analyses, coefficient estimates and parameters of interest are very similar when using linked samples based on each of the different automated methods. We provide code and Stata commands to implement the various automated methods.

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