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D-Index & Metrics

Law

D-Index
28
Citations
3702
World Ranking
309
National Ranking
4

Mathias M. Siems publication distribution in Law in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Law in 2026. The highlighted bar marks where Mathias M. Siems sits on this spectrum.

37–41 publications: 3 scientists 42–46 publications: 1 scientists 47–51 publications: 0 scientists 52–56 publications: 3 scientists 57–61 publications: 2 scientists 62–66 publications: 1 scientists 67–71 publications: 6 scientists 72–76 publications: 6 scientists 77–81 publications: 10 scientists 82–86 publications: 7 scientists 87–91 publications: 10 scientists 92–96 publications: 18 scientists 97–101 publications: 15 scientists 102–106 publications: 14 scientists 107–111 publications: 12 scientists 112–116 publications: 12 scientists 117–121 publications: 14 scientists 122–126 publications: 10 scientists 127–131 publications: 9 scientists 132–136 publications: 14 scientists 137–141 publications: 12 scientists 142–146 publications: 14 scientists 147–151 publications: 8 scientists 152–156 publications: 14 scientists 157–161 publications: 5 scientists 162–166 publications: 9 scientists 167–171 publications: 15 scientists 172–176 publications: 6 scientists 177–181 publications: 9 scientists 182–186 publications: 8 scientists 187–191 publications: 16 scientists 192–196 publications: 7 scientists 197–201 publications: 6 scientists 202–206 publications: 7 scientists 207–211 publications: 11 scientists 212–216 publications: 0 scientists 217–221 publications: 5 scientists 222–226 publications: 6 scientists 227–231 publications: 10 scientists 232–236 publications: 8 scientists 237–241 publications: 5 scientists 242–246 publications: 4 scientists 247–251 publications: 2 scientists 252–256 publications: 7 scientists 257–261 publications: 5 scientists 262+ publications: 100 scientists
37 publications 262+

This scientist: 189 publications — 60th percentile

60% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 262 publications or more.

Mathias M. Siems D-index placement in Law in 2026

The chart shows the D-index (discipline H-index) distribution of Law scientists ranked by Research.com in 2026. The highlighted bar marks where Mathias M. Siems sits on this spectrum.

20 D-Index: 16 scientists 21 D-Index: 23 scientists 22 D-Index: 11 scientists 23 D-Index: 20 scientists 24 D-Index: 17 scientists 25 D-Index: 23 scientists 26 D-Index: 19 scientists 27 D-Index: 19 scientists 28 D-Index: 22 scientists 29 D-Index: 14 scientists 30 D-Index: 25 scientists 31 D-Index: 25 scientists 32 D-Index: 20 scientists 33 D-Index: 24 scientists 34 D-Index: 23 scientists 35 D-Index: 12 scientists 36 D-Index: 11 scientists 37 D-Index: 15 scientists 38 D-Index: 14 scientists 39 D-Index: 4 scientists 40 D-Index: 8 scientists 41 D-Index: 9 scientists 42+ D-Index: 92 scientists
20 D-Index 42+

This scientist: 28 D-Index — 36th percentile

36% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 42 D-Index or more.

Overview

Mathias M. Siems is affiliated with the European University Institute in Italy. Their research spans multiple fields within the social sciences, including law, political science, and business management. The primary areas of study are Social Sciences and Business, Management and Accounting.

Their scholarly work addresses various subfields, with notable contributions in:

  • Law
  • Political Science and International Relations
  • Accounting
  • Strategy and Management
  • Sociology and Political Science

The researcher's work focuses on key topics such as:

  • Conflict of Laws and Jurisdiction
  • Comparative and International Law Studies
  • European and International Contract Law
  • European and International Law Studies
  • International Arbitration and Investment Law
  • Corporate Finance and Governance
  • Judicial and Constitutional Studies

Mathias M. Siems has published extensively, with a particular presence in several academic venues. Frequent publication outlets include:

  • SSRN Electronic Journal
  • Maastricht Journal of European and Comparative Law
  • International Journal of Law in Context
  • Law & Social Inquiry
  • The American Journal of Comparative Law

Selected recent papers include:

  • Legal Perception and Finance: The Case of IPO Firm Value, 2021, British Journal of Management
  • A Network Analysis of Judicial Cross-Citations in Europe, 2022, Law & Social Inquiry
  • The Global Diffusion of Stewardship Codes, 2020, SSRN Electronic Journal
  • Asymmetric cross-citations in private law: An empirical study of 28 supreme courts in the EU, 2021, Maastricht Journal of European and Comparative Law
  • Letting Companies Choose between Board Models: An Empirical Analysis of Country Variations, 2021, SSRN Electronic Journal

Their scholarly collaborations extend to frequent co-authors such as:

  • Martin Gelter
  • David Nelken
  • Anna Krisztián
  • Jaka Kukavica
  • Nastazja Potocka-Sionek

Mathias M. Siems has authored books published by notable academic presses including Cambridge University Press, Mohr Siebeck eBooks, and Université Toulouse-I-Capitole. Key book titles include:

  • Comparative Law, 2022
  • The Cambridge Handbook of Comparative Law, 2024
  • Die Konvergenz der Rechtssysteme im Recht der Aktionäre, 2022
  • Empirical Horizons in European Legal Scholarship, 2025

Best Publications

  • Shareholder Protection: A Leximetric Approach

    Priya P. Lele;Mathias M. Siems

  • Shareholder Protection and Stock Market Development: An Empirical Test of the Legal Origins Hypothesis

    John Armour;Simon Deakin;Prabirjit Sarkar;Mathias M. Siems

  • How Do Legal Rules Evolve? Evidence from a cross-country Comparison of Shareholder, Creditor and Worker Protection

    John Armour;Simon Deakin;Priya Lele;Mathias Siems

  • The evolution of labour law: Calibrating and comparing regulatory regimes

    Simon Deakin;Priya Lele;Mathias M. Siems

  • Shareholder protection around the world ("Leximetric II")

    Mathias M. Siems

  • The Chinese Social Credit System: A Model for Other Countries?

    Daithí Mac Síthigh;Mathias Siems;Mathias Siems

  • Comparative law and finance: past, present and future research

    Mathias M. Siems;Simon Deakin

  • Legal Origins: Reconciling Law & Finance and Comparative Law

    Mathias M. Siems

  • MAPPING LEGAL RESEARCH

    Mathias M. Siems;Daithi Mac Sithigh

  • Law and Financial Development: What we are learning from time-series evidence

    J. Armour;S. Deakin;V. Mollica;Mathias Siems

  • The End of Comparative Law

    Mathias M. Siems

  • Numerical Comparative Law - Do We Need Statistical Evidence in Law in Order to Reduce Complexity?

    Mathias M. Siems

  • Ordoliberal Lessons for Economic Stability: Different Kinds of Regulation, Not More Regulation

    Mathias M. Siems;Gerhard Schnyder

  • THE TAXONOMY OF INTERDISCIPLINARY LEGAL RESEARCH: FINDING THE WAY OUT OF THE DESERT

    Mathias M. Siems

  • Shareholder Protection and Stock Market Development: An Empirical Test of the Legal Origins Hypothesis

    John Armour;Simon Deakin;Prabirjit Sarkar;Mathias M. Siems;Mathias M. Siems

  • Citations to Foreign Courts -- Illegitimate and Superfluous, or Unavoidable? Evidence from Europe

    Martin Gelter;Mathias M. Siems

  • What Does Not Work in Comparing Securities Laws: A Critique on La Porta et al.'s Methodology

    Mathias M. Siems

  • The Evolution of Labour Law: Calibrating and Comparing Regulatory Regimes

    Simon Deakin;Priya Lele;Priya Lele;Mathias M. Siems;Mathias M. Siems

  • The law and ethics of 'cultural appropriation'.

    Mathias Siems

  • The evolution of ownership disclosure rules across countries.

    Michael C Schouten;Mathias M Siems

  • Convergence in Corporate Governance: A Leximetric Approach

    Mathias M. Siems;Mathias M. Siems

  • Malicious legal transplants.

    Mathias Siems

  • Convergence, Legal Origins, and Transplants in Comparative Corporate Law: A Case-Based and Quantitative Analysis

    David Cabrelli;Mathias M. Siems;Mathias M. Siems

  • The financial regulation of energy and environmental markets

    Ivan Diaz-Rainey;Mathias Siems;John K. Ashton

  • Global Social Indicators and the Concept of Legitimacy

    Mathias Siems;David Nelken

  • The Power of Comparative Law:: What Types of Units Can Comparative Law Compare?

    Mathias M. Siems

  • The Ordoliberal Variety of Neoliberalism

    Gerhard Schnyder;Gerhard Schnyder;Mathias M. Siems;Mathias M. Siems

  • The Evolution of Labour Law

    Mathias M. Siems;Simon Deakin;Priya Lele

  • The OECD Principles of Corporate Governance in Emerging Markets: A Successful Example of Networked Governance?

    Mathias M. Siems;Oscar Alvarez-Macotela

  • The Global Diffusion of Stewardship Codes

    Dionysia Katelouzou;Mathias Siems;Mathias Siems

  • Collective Actions: Recent Developments in and Future Perspectives on Collective Actions

    Stefan Wrbka;Steven Van Uytsel;Mathias Siems

  • Comparative Company Law: A Case-Based Approach

    Mathias M. Siems;Mathias M. Siems;David A. Cabrelli

  • Measuring the Immeasurable: How to Turn Law into Numbers

    Mathias M. Siems;Mathias M. Siems

  • Private Enforcement of Directors’ Duties: Derivative Actions as a Global Phenomenon

    Mathias M. Siems;Mathias M. Siems

Frequent Co-Authors

Simon Deakin
Simon Deakin University of Cambridge
Bernard S. Black
Bernard S. Black Northwestern University
Brian R. Cheffins
Brian R. Cheffins University of Cambridge
John Armour
John Armour University of Oxford
David Nelken
David Nelken King's College London
Ajit Singh
Ajit Singh University of Birmingham
Ruth V. Aguilera
Ruth V. Aguilera Northeastern University
John A.L. Armour
John A.L. Armour University of Nottingham

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