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Professor Sharyn O'Halloran
Professor of Political Economy (2020), Political Science
Professor of Political Economy (2020), Economics

Publications and Further Research Outputs

Peer-Reviewed Publications

Delegation and Lobbying in, editor(s)Edward Elger Press , Handbook on the Strategic Analysis of Politics, London England, Edward Elger Press, 2026, [Sharyn O'Halloran] Book Chapter, 2026 URL

Sharyn O'Halloran, co-authored, Redistricting and Representation: The Paradox of Minority Power, Nottinham Conference on Political Economy, 2024 Conference Paper, 2024 URL TARA - Full Text

Sharyn O'Halloran, co-authoried, Computing the impact of central clearing on systemic risk, Frontiers in Artificial Intelligence, 7, 2024 Journal Article, 2024 DOI

Sharyn O'Halloran, co-authored, Delegation and the Regulation of U.S. Financial Markets, European Journal of Political Economy, 70, (0176-2680), 2021, p102058 Journal Article, 2021

Frontiers of Artificial Intelligence, Switzerland, Frontires, [Special Editor], 2021 Editorial Board, 2021 URL

Social Network Analysis and Mining (SNAM), Switzerland AG, Springer Nature, [Associate Editor], 2020 Editorial Board, 2020 URL

A Data Science Approach to Predict the Impact of Collateralization on Systemic Risk in, editor(s)Reda Alhaij, co-authored , Social Network Analysis Lecture Series, New York, Springer, 2019, [Sharyn O'Halloran, co-authored] Book Chapter, 2019

Sharyn O'Halloran, After the Crash: Financial Crises and Regulatory Responses, 1st, Columbia University Press, 2019 Book, 2019

Trends in Financial Market Regulation in, editor(s)Sharyn O'Halloran, co-authored , Ten Years After the Crash, New York, Columbia University Press, 2019, pp55 - 81, [Sharyn O'Halloran, co-authored] Book Chapter, 2019

Introduction: Overview of the Financial Crisis and its Impacts in, editor(s)Sharyn O'Halloran, co-authored , Ten Years After the Crash , New York, Columbia University Press, 2019, pp1 - 43, [Sharyn O'Halloran, co-authored] Book Chapter, 2019

Sharyn O'Halloran co-authored, Artificial Intelligence Approach to Regulating Systemic Risk, Frontiers in Artificial Intelligence, 2, (7), 2019 Journal Article, 2019

The Impact of Regulation on Systemic Risk in, editor(s)Sharyn O'Halloran, co-authored , Ten Years After the Crash, New York, Columbia University Press, 2019, pp209 - 227, [Sharyn O'Halloran, co-authored] Book Chapter, 2019

Sharyn O'Halloran co-author, Delegating Regulation: European Union and Financial Markets, Annales des Mines - Réalités industrielles, November , (4), 2018, p91 - 111 Journal Article, 2018

Sharyn O'Halloran, co-authored, Daisy Chains and Non-cleared OTC Derivatives, Banking & Financial Services Policy Report, 36, (2), 2017, p10 - 12 Journal Article, 2017

Sharyn O'Halloran, co-authored, Big Data and Graph Theoretic Models: Simulating the Impact of Collateralization on Financial System, Proceedings of the 2017 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, 2017, p1056 - 1064 Journal Article, 2017

Computational Data Sciences and the Regulation of Banking and Financial Services in, Social Network Analysis Lecture Notes, New York, Springer, 2016, [Sharyn O'Halloran, co-authored] Book Chapter, 2016

Sharyn O'Halloran, co-authored, Data Science and Political Economy: Application to Financial Regulatory Structure, Journal of the Social Sciences, 2, (7), 2016 Journal Article, 2016

Sharyn O'Halloran, co-authored, Big Data and the Regulation of Banking and Financial Services, Banking & Financial Services Policy Report , 34, (12), 2015, p1 - 10 Journal Article, 2015

Sharyn O'Halloran, co-authored, Big Data and the Regulation of Financial Markets, ASONAM '15 Proceedings of the 2015 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, 2015, p1118 - 1124 Journal Article, 2015

Sharyn O'Halloran, co-inventor, 'Method and apparatus for access, integration, and analysis of heterogeneous data sources via the manipulation of metadata objects', US Patent Office, US8171050B2, 2012, 14 February 2023 Patent, 2012 URL

Sharyn O'Halloran, co-authored, Minorities and Democratization, Economics and Politics, 24, 2012, p259 - 278 Journal Article, 2012

Sharyn O'Halloran, co-inventor, 'Method and apparatus for access, integration, and analysis of heterogeneous data sources via the manipulation of metadata objects ', Columbia Academic Commons, (G06F16/283 ), US Patent , 2012, - Digital research resource production, 2012 URL

Sharyn O'Halloran, co-authored, 'Alternative Models of Binary-Time Series, Cross Section Models: The Case of State Failure', Columbia Academic Commons, 2010, - Digital research resource production, 2010

Caucuses and Primaries under Proportional Representation in, editor(s)Enriqueta Aragones, Carmen Bevia, Humberto Llavado, and Norman Schofield , The Political Economy of Democracy, Bilbao, Spain, Fundación BBVA, 2009, [Sharyn O'Halloran, co-authored] Book Chapter, 2009

Sharyn O'Halloran, co-authored, 'Damage Control: Time to Rewrite the Playbook', Reflective Pundit , 2009, - Digital research resource production, 2009

Implementing the Agreement: Partisan Politics and WTO Dispute Settlement in, editor(s)James Hartigan, co-authored , Frontiers of Economics and Globalization, New York, Elsevier Press, 2009, [Sharyn O'Halloran] Book Chapter, 2009

Sharyn O'Halloran, co-authored, 'Bailout Vote Analysis: Theory', Reflective Pundit, 2008, - Digital research resource production, 2008

Sharyn O'Halloran, co-authored, 'Bailout Vote Analysis: Empirics', Reflective Pundit, 2008, - Digital research resource production, 2008

Sharyn O'Halloran, co-authored, 'The Senate Bailout Vote: Yawn!', Reflective Pundit, 2008, - Digital research resource production, 2008

U.S. Implementation of WTO Decisions in, editor(s)Merit Janow, Victoria Donaldson, and Alan Yanovich , The Tenth Anniversary of the WTO, New York, Juris Publishing, Inc. Press, 2008, [Sharyn O'Halloran, co-authored] Book Chapter, 2008

Gerrymanders as Tradeoffs: The Co-Evolution of Social Scientific and Legal Approaches to Racial Redistricting in, editor(s)Margaret Levi, James Johnson, Jack Knight and Susan Stokes, co-authored , Designing Democratic Government, New York, Russell Sage Foundation Press, 2008, [Sharyn O'Halloran, co-authored] Book Chapter, 2008

Sharyn O'Halloran, co-authored, Does the New VRA Section 5 Overrule Georgia v. Ashcroft, NYU Annual Survey of American Law , 63, (619), 2008, p631 - 659 Journal Article, 2008

Sharyn O'Halloran, co-authored, Delegation Games and Sovereignty in International Organizations, Law & Contemporary Problems , 71, 2008, p77 - 92 Journal Article, 2008

Sharyn O'Halloran, co-authored, Estimating the Impact of Redistricting on Minority Substantive Representation" , Journal of Law, Economics & Organization, 23, 2007, p499 - 518 Journal Article, 2007

Sharyn O'Halloran, co-authored, The Paradox of Retrogression in the New VRA: Comment on Persily, Yale Law Journal, 117, (10), 2007 Journal Article, 2007

Trends in Substantive and Descriptive Minority Representation, 1974-2000 in, editor(s)Sharyn O'Halloran, Rodolfo de la Garza, and Richard Pildes, co-authored , The Future of the Voting Rights Act, New York, Russell Sage Foundation Press, 2006, [Sharyn O'Halloran] Book Chapter, 2006

Sharyn O'Halloran, co-authored, A Strategic Dominance Argument for Retaining Section 5 of the VRA, Election Law Journal, 5, (3), 2006, p283 - 292 Journal Article, 2006

Sharyn O'Halloran, co-authored, Democratic Transitions, American Journal of Political Science, 50, (July), 2006, p551 - 569 Journal Article, 2006

A Theory of Efficient Delegation in, editor(s)Dietmar Braun and Fabrizio Gilardi, co-authored , Delegation in Contemporary Democracies, London, England, Routledge Press, 2006, [Sharyn O'Halloran, co-authored] Book Chapter, 2006

Conditional Presidential Leadership: Pivotal Players, Gridlock, and Delegation in, editor(s)Bert Rockman and Richard W. Waterman, co-authored , Presidential Leadership: The Vortex of Power, 4th edition, Los Angeles, California, Roxbury Publishing Company, 2006, [Sharyn O'Halloran, co-authored] Book Chapter, 2006

Sharyn O'Halloran , The Future of the Voting Rights Act. Co-edited. New York: Russell Sage Foundation. , New York, Russel Sage Foundation, 2006 Book, 2006 URL

Sharyn O'Halloran, co-authored, Sharyn O'Halloran, Comitology, Delegation, and the Separation of Powers in the European Union, International Organization , 56, (Summer), 2002, p551 - 574 Journal Article, 2002

Sharyn O'Halloran, co-authored, Legislative Organization under Separate Powers, Journal of Law, Economics & Organization, 17, (October), 2001, p373 - 396 Journal Article, 2001

No Net Effect: Internet Voting and Youth Participation in the 2000 Democratic Primary in, editor(s)Sharyn O'Halloran, co-authored , Pew Charitable Trusts Report, Philadelphia, Pennsylvania , Pew Charitable Trusts Report, 2001, [Sharyn O'Halloran, co-authored] Book Chapter, 2001

The Electoral Impact of Majority-Minority Districts in, editor(s)David Brady, John Cogan, and Morris Fiorina, co-authored , Continuity and Change in House Elections, Stanford, California, Stanford University Press, 2000, [Sharyn O'Halloran, co-authored] Book Chapter, 2000

Rationality and International Political Economy in, editor(s)R.J.B. Jones, co-authored , The Encyclopedia of International Political Economy, London, England, Routledge, 2000, [Sharyn O'Halloran, co-authored] Book Chapter, 2000

The Institutional Face of Power: Congressional Delegation of Authority to the Presiden in, editor(s)Robert Shapiro, et. al. , Presidential Power: Forging the Presidency for the 21st Century, New York, Columbia University Press, 2000, [Sharyn O'Halloran, co-authored] Book Chapter, 2000

Sharyn O'Halloran, co-authored, Measuring the Electoral and Policy Impact of Majority-Minority Voting Districts, American Journal of Political Science , 43, (April), 1999, p367 - 395 Journal Article, 1999

Sharyn O'Halloran, Delegating Powers: A Transaction Cost Politics Approach to Policy Making Under Separate Powers, New York, Cambridge University Press, 1999 Book, 1999 URL

A New Comparative Political Institution Web Database in, editor(s)Sharyn O'Halloran, co-authored , Comparative Politics Newsletter, American Political Science Association, 1999, [Sharyn O'Halloran, co-authored] Book Chapter, 1999

Sharyn O'Halloran, co-authored, The Non-Delegation Doctrine and Separate Powers: A Political Science Approach, The Cardozo Law Review , 20, (January), 1999, p947 - 987 Journal Article, 1999

Sharyn O'Halloran, co-authored, A Social Science Approach to Race, Redistricting, and Representation, American Political Science Review , 93, (March), 1999, p187 - 191 Journal Article, 1999

Sharyn O'Halloran, co-authored, Asymmetric Information, Delegation, and the Structure of Policy Making, Journal of Theoretical Politics , 11, 1999, p37 - 56 Journal Article, 1999

Labor Interests and the Politics of American Trade Policy in, editor(s)Susan Collins, co-authored , Exports, Imports, and the American Worker, District of Columbia, Virginia, Brookings Institute Press, 1998, [Sharyn O'Halloran, co-authored] Book Chapter, 1998

Sharyn O'Halloran, co-authored, A Comparative Approach to Legislative Organization: Careerism and Seniority in the United States and Japan, American Journal of Political Science, 41, 1997, p965 - 988 Journal Article, 1997

Comment on Social Regulations and International Trade in, editor(s)Pietro Nivola, co-authored , Competitive Disadvantages? Domestic Social Regulations and the Global Economy, District of Columbia, Virginia, Brookings Institute Press, 1997, [Sharyn O'Halloran, co-authored] Book Chapter, 1997

Sharyn O'Halloran, co-authored, The Partisan Paradox and the U.S. Tariff, 1877 to 1934, International Organization , 50, 1996, p301 - 324 Journal Article, 1996

Sharyn O'Halloran, co-authored, Do Majority-Minority Districts Maximize Substantive Black Representation in Congress?, American Political Science Review , 90, 1996, p794 - 812 Journal Article, 1996

Sharyn O'Halloran, co-authored, Divided Government and the Design of Administrative Procedures: A Formal Model and Empirical Test, Journal of Politics , 58, 1996, p393 - 417 Journal Article, 1996

Sharyn O'Halloran, A Theory of Strategic Oversight: Congress, Lobbyists, and the Bureaucracy, Journal of Law, Economics & Organization , 11, 1995, p227 - 255 Journal Article, 1995

Sharyn O'Halloran, co-authored, Administrative Procedures, Information, and Agency Discretion, American Journal of Political Science , 38, 1994, p697 - 722 Journal Article, 1994

Sharyn O'Halloran, Politics, Process and American Trade Policy., Ann Arbor: University of Michigan Press., 1994 Book, 1994

Sharyn O'Halloran, co-authored, Divided Government and U.S. Trade Policy, International Organization , 48, 1994, p595 - 722 Journal Article, 1994

Congress and Foreign Trade Policy in, editor(s)Randall Ripley and James Lindsay, co-authored , Congress Resurgent: Foreign and Defense Policy on Capitol Hill, Ann Arbor, Michigan, University of Michigan Press, 1993, [Sharyn O'Halloran, co-authored] Book Chapter, 1993

Research Expertise

Projects

  • Title
    • Danu Irish National Centre for AI and Data Science
  • Summary
    • The Danu Centre for AI and Data Science is a world-leading Research Ireland (formerly SFI) centre focusing on human-centric AI-driven technology and data science applications that empower people to engage more effectively in a digital world. It is a multi-institutional hub coordinated by Trinity College Dublin and co-hosted by Dublin City University (DCU).
  • Funding Agency
    • Research Ireland (formerly SFI)
  • Date From
    • 2026_06_01
  • Date To
    • 2033_05_31
  • Title
    • Predicting Resilience: AI-enhanced approaches for adaptive policymaking
  • Summary
    • Governments struggle to manage today"s complex global challenges. The ADAPT project leverages artificial intelligence (AI) to identify the governance traits that enable advanced democracies to withstand and recover from crises. This research programme develops insights into how well-designed institutions can help societies manage uncertainties. ADAPT is structured around constructing three core benchmarks: 1) The ADAPT Database"an extensive archive of structured and unstructured data documenting resilience across 23 jurisdictions in 15 languages over 70 years; 2) A dynamic, multilingual NLP model that extracts adaptive features from legal texts; and 3) A Resilience Governance Measure designed to predict countries" capacity to resist and react to crises. The ADAPT Database integrates economic metrics, legal texts, legislative records, and governance documents, setting a new standard in resilient governance research. Using an iterative approach, broadly known as Theory-Guided Artificial Intelligence (TGAI)"which combines theoretical frameworks with data-driven methods"ADAPT refines adaptive policymaking models by linking theory with practical data-driven applications. Through advanced NLP and machine learning (ML) techniques, including deep learning, ADAPT"s dynamic, multilingual model classifies laws and regulations, developing resilience measures that reflect a nation"s ability to respond to economic, social, and environmental crises. ADAPT reimagines democratic resilience by integrating AI methods with theories of adaptive policymaking. The synergistic results of ADAPT's diverse team of experts will catalyze a new wave of scholarship, setting a standard for interdisciplinary research at the nexus of AI and public policy. Its scalable and flexible framework provides policymakers and researchers with actionable policy insights and tools, crafting systematic responses to crises and strengthening governance in an uncertain world.
  • Funding Agency
    • ERC
  • Date From
    • 01/01/2026
  • Date To
    • 01/01/2032
  • Title
    • Competition and Regulation of Technology (CORETEXT)
  • Summary
    • Technological developments are central to understanding rapid changes in power structures in society, as market power is augmented by data and by hardware and software technologies (such as platforms and search) that are controlled by a few players. Efforts to address power and ensure that new companies can succeed without hindrance rely on a combination of regulation and competition. Meanwhile, European success in creating durable technical enterprises has been limited, posing enduring questions about how to succeed in the economy of the future. The CORETEXT Doctoral Networks (DN) will train the next generation of scientists in a range of interdisciplinary and cross-sector methods to make significant progress in understanding how to regulate existing companies and motivate new ones. Training is structured around two interdisciplinary research themes: Understanding: analysis, theories of societal risks, harm, and benefits, and remedies, and Application: law and governance. Both involve extensive, systematic co-supervision and collaboration across sites, with vigorous interplay between academic beneficiaries and associated partners. In turn, we expect improved governance and laws to emerge, with associated societal and economic benefits. The training of the cohort of Doctoral Candidate (DC) fellows is based on innovative PhD training approaches, providing not only interdisciplinary training but also peer-assisted methods and in-depth work-based expertise. This will produce a cohort of highly skilled researchers who will be highly employable, given the potential contribution they will make to future research and innovation in the public and private sectors.
  • Funding Agency
    • European Research Council
  • Title
    • Democratic Resilience in the Digital Era (DRIDE)
  • Summary
    • Democratic Resilience in the Digital Era (DRIDE) will deliver a Horizon Europe Cluster 2 project that supports the call"s objective to reinvigorate and shield European democracy. DRIDE makes democratic resilience measurable, comparable, and actionable by combining comparative governance theory with interpretable, theory-guided analytical methods, including AI, applied to legal and regulatory frameworks. The project analyses how institutional rules, procedures, and governance arrangements shape accountability, transparency, trust, and inclusive participation under conditions of crisis, digital disruption, and external pressure. DRIDE develops a policy-focused Institutional Resilience Scorecard and decision-support tools to assist democratic actors to: " Assess governance features that enhance resilience or expose systems to rigidity and legitimacy risks. " Identify accountability gaps and decision-making bottlenecks that arise during crises. " Compare the design and robustness of democratic safeguards across countries and sectors to inform evidence-based reforms and policy design. DRIDE provides policy-making bodies and civil society with interpretable evidence to navigate core democratic trade-offs, including speed versus oversight, discretion versus accountability, and flexible response versus participation. The Resilience Scorecard is designed for practical use by policy institutions and civil society, enabling benchmarking and stress-testing of governance frameworks to support evidence-based policymaking. The project delivers reusable outputs that promote EU-wide learning and enable structured comparisons across institutional contexts, time periods, and policy domains.
  • Funding Agency
    • Enterprise Ireland
  • Date From
    • September 2026
  • Date To
    • September 2028