ISPS Data Archive

Part of the Yale Institution for Social and Policy Studies (ISPS) Dataverse, the ISPS Data Archive includes “replication packages” (i.e., data, analysis code, requisite documentation, and other associated materials) for research supported by ISPS. Replication packages have been reviewed to enable long-term usability using the YARD tool. Read about our approach to curating for reproducibility.

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91 to 100 of 147 Results

National Service and Civic Engagement: A Natural Experiment Apr 8, 2026 Ryan Garcia, 2015, "National Service and Civic Engagement: A Natural Experiment", https://doi.org/10.60600/YU/YGHPRX, Yale Dataverse, V2 Nearly all studies that seek to uncover the effects of military service on the individual are plagued with the self-selection bias that comes with studying the all-volunteer force. To solve this problem, this paper takes advantage of the natural experiment afforded by the suspension of the French National Service program to produce unbiased causal...
Inequity Aversion and the International Distribution of Trade Protection Apr 8, 2026 Xiaobo Lü; Kenneth Scheve; Matthew J. Slaughter, 2012, "Inequity Aversion and the International Distribution of Trade Protection", https://doi.org/10.60600/YU/Q9RDXT, Yale Dataverse, V2 One important puzzle in international political economy is why lower-earning and less-skilled intensive industries tend to receive relatively high levels of trade protection. This pattern of protection holds across countries with vastly different economic and political characteristics and is not well accounted for in existing political economy mode...
Democracy, War, and Wealth: Lessons from Two Centuries of Inheritance Taxation Apr 8, 2026 Kenneth Scheve; David Stasavage, 2012, "Democracy, War, and Wealth: Lessons from Two Centuries of Inheritance Taxation", https://doi.org/10.60600/YU/HM1XSX, Yale Dataverse, V2 In this article we use an original data set to provide the first empirical analysis of the political economy of inherited wealth taxation that covers a significant number of countries and a long time frame (1816–2000). Our goal is to understand why, if inheritance taxes are often very old taxes, the implementation of inheritance tax rates significa...
Taking Sides in Other People's Elections: The Polarizing Effect of Foreign Intervention Apr 8, 2026 Daniel Corstange; Nikolay Marinov, 2012, "Taking Sides in Other People's Elections: The Polarizing Effect of Foreign Intervention", https://doi.org/10.60600/YU/VY0ZUJ, Yale Dataverse, V2 What do voters think when outside powers become de facto participants in a country’s election? We conceptualize two types of foreign intervention: a partisan stance, where the outsider roots for a particular candidate slate, and a process stance, where outsiders support the democratic process. We theorize that a partisan outside message will polari...
A Field Experiment on Legislators' Home Styles: Service versus Policy Apr 8, 2026 Daniel Butler; Christopher F. Karpowitz; Jeremy C. Pope, 2017, "A Field Experiment on Legislators' Home Styles: Service versus Policy", https://doi.org/10.60600/YU/9CNGGQ, Yale Dataverse, V2 We conducted a field experiment involving roughly 1,000 letters sent by actual individuals to nearly 500 different legislative offices in order to test whether legislative offices prioritize service over policy in their home style. We find strong evidence that both state and federal legislative offices are more responsive to service requests than t...
Citizens’ Policy Confidence and Electoral Punishment: A Neglected Dimension of Electoral Accountability Apr 8, 2026 Alan S. Gerber; Gregory Huber; David Doherty; Conor M. Dowling, 2014, "Citizens’ Policy Confidence and Electoral Punishment: A Neglected Dimension of Electoral Accountability", https://doi.org/10.60600/YU/QHCSC2, Yale Dataverse, V2 If voters punish elected officials who adopt incongruent policy positions, then representatives should take popular positions to avoid electoral sanction. Yet, scholars have noted gaps between citizen preferences and the behavior of elected officials. We argue that one important source of this gap is that individual citizens believe they are someti...
Can Learning Constituency Opinion Affect How Legislators Vote? Results from a Field Experiment Apr 8, 2026 Daniel Butler; David W. Nickerson, 2012, "Can Learning Constituency Opinion Affect How Legislators Vote? Results from a Field Experiment", https://doi.org/10.60600/YU/QVCG0C, Yale Dataverse, V2 When legislators are uninformed about public opinion, does learning constituents' opinion affect how legislators vote? We conducted a fully randomized field experiment to answer this question. We surveyed 10,690 New Mexicans about the Governor's spending proposals for a special summer session held in the summer of 2008. District-specific survey res...
Elite Influence on Public Opinion in an Informed Electorate Apr 8, 2026 John Bullock, 2013, "Elite Influence on Public Opinion in an Informed Electorate", https://doi.org/10.60600/YU/TGF5VL, Yale Dataverse, V2 An enduring concern about democracies is that citizens conform too readily to the policy views of elites in their own parties, even to the point of ignoring other information about the policies in question. This article presents two experiments that undermine this concern, at least under one important condition. People rarely possess even a modicum...
Does Publicizing a Tax Credit for Political Contributions Increase Its Use?: Results From a Randomized Field Experiment Apr 8, 2026 Robert G. Boatright; Donald P. Green; Michael J. Malbin, 2011, "Does Publicizing a Tax Credit for Political Contributions Increase Its Use?: Results From a Randomized Field Experiment", https://doi.org/10.60600/YU/WVOWDZ, Yale Dataverse, V2 We present the results of an experiment using nonpartisan, informational direct mail—of the sort that a public relations–conscious government agency might use—to encourage Ohio voters to contribute money to political candidates. Ohio provides full tax credits of up to $50 to citizens who make contributions to state candidates. We found that the mai...
Enhancing Academic Performance and Social and Emotional Competence With the RULER Feeling Words Curriculum Apr 8, 2026 Marc A. Brackett; Susan E. Rivers; Maria R. Reyes; Peter Salovey, 2012, "Enhancing Academic Performance and Social and Emotional Competence With the RULER Feeling Words Curriculum", https://doi.org/10.60600/YU/NPO1LO, Yale Dataverse, V2 A pre- and post-test quasi-experimental design was used to test the impact of a 30-week, theoretically-based social and emotional learning (SEL) curriculum, The RULER Feeling Words Curriculum (“RULER”), on the academic performance and social and emotional competence of 5th and 6th grade students (N = 273) in fifteen classrooms in three schools. Aca...

National Service and Civic Engagement: A Natural Experiment

Apr 8, 2026

Ryan Garcia, 2015, "National Service and Civic Engagement: A Natural Experiment", https://doi.org/10.60600/YU/YGHPRX, Yale Dataverse, V2

Nearly all studies that seek to uncover the effects of military service on the individual are plagued with the self-selection bias that comes with studying the all-volunteer force. To solve this problem, this paper takes advantage of the natural experiment afforded by the suspension of the French National Service program to produce unbiased causal...

Inequity Aversion and the International Distribution of Trade Protection

Apr 8, 2026

Xiaobo Lü; Kenneth Scheve; Matthew J. Slaughter, 2012, "Inequity Aversion and the International Distribution of Trade Protection", https://doi.org/10.60600/YU/Q9RDXT, Yale Dataverse, V2

One important puzzle in international political economy is why lower-earning and less-skilled intensive industries tend to receive relatively high levels of trade protection. This pattern of protection holds across countries with vastly different economic and political characteristics and is not well accounted for in existing political economy mode...

Democracy, War, and Wealth: Lessons from Two Centuries of Inheritance Taxation

Apr 8, 2026

Kenneth Scheve; David Stasavage, 2012, "Democracy, War, and Wealth: Lessons from Two Centuries of Inheritance Taxation", https://doi.org/10.60600/YU/HM1XSX, Yale Dataverse, V2

In this article we use an original data set to provide the first empirical analysis of the political economy of inherited wealth taxation that covers a significant number of countries and a long time frame (1816–2000). Our goal is to understand why, if inheritance taxes are often very old taxes, the implementation of inheritance tax rates significa...

Taking Sides in Other People's Elections: The Polarizing Effect of Foreign Intervention

Apr 8, 2026

Daniel Corstange; Nikolay Marinov, 2012, "Taking Sides in Other People's Elections: The Polarizing Effect of Foreign Intervention", https://doi.org/10.60600/YU/VY0ZUJ, Yale Dataverse, V2

What do voters think when outside powers become de facto participants in a country’s election? We conceptualize two types of foreign intervention: a partisan stance, where the outsider roots for a particular candidate slate, and a process stance, where outsiders support the democratic process. We theorize that a partisan outside message will polari...

A Field Experiment on Legislators' Home Styles: Service versus Policy

Apr 8, 2026

Daniel Butler; Christopher F. Karpowitz; Jeremy C. Pope, 2017, "A Field Experiment on Legislators' Home Styles: Service versus Policy", https://doi.org/10.60600/YU/9CNGGQ, Yale Dataverse, V2

We conducted a field experiment involving roughly 1,000 letters sent by actual individuals to nearly 500 different legislative offices in order to test whether legislative offices prioritize service over policy in their home style. We find strong evidence that both state and federal legislative offices are more responsive to service requests than t...

Citizens’ Policy Confidence and Electoral Punishment: A Neglected Dimension of Electoral Accountability

Apr 8, 2026

Alan S. Gerber; Gregory Huber; David Doherty; Conor M. Dowling, 2014, "Citizens’ Policy Confidence and Electoral Punishment: A Neglected Dimension of Electoral Accountability", https://doi.org/10.60600/YU/QHCSC2, Yale Dataverse, V2

If voters punish elected officials who adopt incongruent policy positions, then representatives should take popular positions to avoid electoral sanction. Yet, scholars have noted gaps between citizen preferences and the behavior of elected officials. We argue that one important source of this gap is that individual citizens believe they are someti...

Can Learning Constituency Opinion Affect How Legislators Vote? Results from a Field Experiment

Apr 8, 2026

Daniel Butler; David W. Nickerson, 2012, "Can Learning Constituency Opinion Affect How Legislators Vote? Results from a Field Experiment", https://doi.org/10.60600/YU/QVCG0C, Yale Dataverse, V2

When legislators are uninformed about public opinion, does learning constituents' opinion affect how legislators vote? We conducted a fully randomized field experiment to answer this question. We surveyed 10,690 New Mexicans about the Governor's spending proposals for a special summer session held in the summer of 2008. District-specific survey res...

Elite Influence on Public Opinion in an Informed Electorate

Apr 8, 2026

John Bullock, 2013, "Elite Influence on Public Opinion in an Informed Electorate", https://doi.org/10.60600/YU/TGF5VL, Yale Dataverse, V2

An enduring concern about democracies is that citizens conform too readily to the policy views of elites in their own parties, even to the point of ignoring other information about the policies in question. This article presents two experiments that undermine this concern, at least under one important condition. People rarely possess even a modicum...

Does Publicizing a Tax Credit for Political Contributions Increase Its Use?: Results From a Randomized Field Experiment

Apr 8, 2026

Robert G. Boatright; Donald P. Green; Michael J. Malbin, 2011, "Does Publicizing a Tax Credit for Political Contributions Increase Its Use?: Results From a Randomized Field Experiment", https://doi.org/10.60600/YU/WVOWDZ, Yale Dataverse, V2

We present the results of an experiment using nonpartisan, informational direct mail—of the sort that a public relations–conscious government agency might use—to encourage Ohio voters to contribute money to political candidates. Ohio provides full tax credits of up to $50 to citizens who make contributions to state candidates. We found that the mai...

Enhancing Academic Performance and Social and Emotional Competence With the RULER Feeling Words Curriculum

Apr 8, 2026

Marc A. Brackett; Susan E. Rivers; Maria R. Reyes; Peter Salovey, 2012, "Enhancing Academic Performance and Social and Emotional Competence With the RULER Feeling Words Curriculum", https://doi.org/10.60600/YU/NPO1LO, Yale Dataverse, V2

A pre- and post-test quasi-experimental design was used to test the impact of a 30-week, theoretically-based social and emotional learning (SEL) curriculum, The RULER Feeling Words Curriculum (“RULER”), on the academic performance and social and emotional competence of 5th and 6th grade students (N = 273) in fifteen classrooms in three schools. Aca...

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