Click on title to download data and replication materials. Unless otherwise noted, the data are in Stata format, compressed as ZIP files. To request a different format, send an email to pmcollins@legal.umass.edu.

Datasets

Presidential Speeches on Supreme Court Decisions Database. With Matthew Eshbaugh-Soha. 2019. Data are in Excel, SPSS, and Stata formats. 

The U.S. Supreme Court Confirmation Hearing Database. With Lori A. Ringhand. 2013. Data are in Excel, R, SPSS, and Stata formats.

The U.S. Supreme Court Amicus Curiae Database, 1946-2001. 2008. Data are in Excel, SPSS, and Stata formats.

Books

Supreme Bias: Gender and Race in U.S. Supreme Court Confirmation Hearings. With Christina L. Boyd and Lori A. Ringhand. 2023. Stanford, CA: Stanford University Press.

The President and the Supreme Court: Going Public on Judicial Decisions from Washington to Trump. With Matthew Eshbaugh-Soha. 2019. New York, NY: Cambridge University Press.

Supreme Court Confirmation Hearings and Constitutional Change. With Lori A. Ringhand. 2012. New York, NY: Cambridge University Press.

Friends of the Supreme Court: Interest Groups and Judicial Decision Making. 2008. New York, NY: Oxford University Press.

Journal Articles

“The Supreme Court, the President, and Congress: Lawmaking in a Separation of Powers System.” With Matthew Eshbaugh-Soha. 2022. Journal of Law and Courts 10(2): 213-237.

The Role of Nominee Gender and Race at U.S. Supreme Court Confirmation Hearings. With Christina L. Boyd and Lori A. Ringhand. Law & Society Review 52(4): 871-901.

The Institutionalization of Supreme Court Confirmation Hearings. With Lori A. Ringhand. 2016. Law & Social Inquiry 41(1): 126-151.

The Influence of Amicus Curiae Briefs on U.S. Supreme Court Opinion Content. With Pamela C. Corley and Jesse Hamner. 2015. Law & Society Review 49(4): 917-944.

Presidential Rhetoric and Supreme Court Decisions. With Matthew Eshbaugh-Soha. 2015. Presidential Studies Quarterly 45(4): 633-652.

Judges and Friends: The Influence of Amici Curiae on U.S. Court of Appeals Judges. With Wendy L. Martinek. 2015. American Politics Research 43(2): 255-282.

On the Relationship between Public Opinion and Decision Making on the U.S. Courts of Appeals. With Bryan Calvin and Matthew Eshbaugh-Soha. 2012. Political Research Quarterly 64(4): 736-748.

Lower Court Influence on U.S. Supreme Court Opinion Content. With Pamela C. Corley and Bryan Calvin. 2011. Journal of Politics 73(1): 31-44.

Cognitive Dissonance on the U.S. Supreme Court. 2011. Political Research Quarterly 64(2): 362-376.

The Small Group Context: Designated District Court Judges in the U.S. Courts of Appeals. With Wendy L. Martinek. 2011. Journal of Empirical Legal Studies 8(1): 177-205.

May It Please the Senate: An Empirical Analysis of Senate Judiciary Confirmation Hearings of Supreme Court Nominees, 1939-2009. With Lori A. Ringhand. 2011. American University Law Review 60(3): 589-641.

Friends of the Circuits: Interest Group Influence on Decision Making in the U.S. Courts of Appeals. With Wendy L. Martinek. 2010. Social Science Quarterly 91(2): 397-414.

Counteractive Lobbying in the U.S. Supreme Court. With Lisa A. Solowiej. 2009. American Politics Research 37(4): 670-699. Data are in Stata and Gauss formats.

The Consistency of Judicial Choice. 2008. Journal of Politics 70(3): 861-873.

The Solicitor General’s Amicus Curiae Strategies in the Supreme Court. With Chris Nicholson. 2008. American Politics Research 36(3): 382-415.

Amici Curiae and Dissensus on the U.S. Supreme Court. 2008. Journal of Empirical Legal Studies 5(1): 143-170.

Transforming the United States Courts of Appeals Data Bases in Stata. 2008. Law & Courts 18(1): 19-22.

Towards an Integrated Model of the U.S. Supreme Court’s Federalism Decision Making. 2007. Publius: The Journal of Federalism 37(4): 505-531.

Lobbyists before the U.S. Supreme Court: Investigating the Influence of Amicus Curiae Briefs. 2007. Political Research Quarterly 60(1): 55-70.

Transforming the Original U.S. Supreme Court Judicial Database: An Alternative Approach for use with Stata. 2006. Law & Courts 16(1): 22-24.

Friends of the Court: Examining the Influence of Amicus Curiae Participation in U.S. Supreme Court Litigation.  2004.  Law & Society Review 38(4): 807-32.