Piero Ríos-Carrillo

Piero Ríos-Carrillo

DPhil in Law Candidate

University of Oxford  ·  Faculty of Law

About

I am a DPhil candidate in Law at the University of Oxford, supervised by Professor Ruth Chang. My dissertation, Comparativism, Agency, and Virtue, examines the foundations of comparative evaluative reasoning in legal justification.

I hold a Magister Juris from Oxford and a Bachelor in Law from Universidad Católica San Pablo (Peru). My work sits at the intersection of jurisprudence, legal theory, and value theory. I have practised as a lawyer in international arbitration and dispute resolution in London and Peru.

I am a recipient of the "Generación del Bicentenario" scholarship from the Peruvian Ministry of Education, a fully funded merit-based doctoral scholarship.

Publications

In preparation
Hard Cases and Legal Justification. Part I
Forthcoming 2027
Hard Cases and Legal Justification. Part II
Forthcoming 2027
Considerations on Proportionality, Justice, and Parity
Forthcoming 2026 Collected volume, Hart Press — Workshop on 'Parity and the Law', Max Planck Institute, Freiburg (2025)
2026
The Comparativist Structure of Legal Justification
Journal Jurisprudence, January 2026, pp. 1–26
2025
Hard Cases in Law
Chapter Research Handbook of Legal Argumentation, eds. Luis Duarte d'Almeida et al., Edward Elgar Press, London
On the Special Normative Force of Law and the Difference It Makes
Journal Jurisprudence 16(4): 858–875
2024
Proportionality, Comparability, and Parity: A Discussion on the Rationality of Balancing
Journal Legal Theory 29(4): 257–288
2021
El Razonamiento Jurídico Consecuencialista
Book Palestra Editores, Lima
2020
Is there a Place for Arbitration Within the Reparations System Practiced by the Inter-American Court of Human Rights?
Journal Derecho PUCP 84: 69–97
2019
From Robert Alexy's Thesis of the Dual Nature to a "Moderate Natural Law Theory" (with José Chávez-Fernández)
Journal Revista Chilena de Derecho 46(1): 177–201
2018
Reseña del libro 'José Chávez-Fernández Postigo, Luis Recaséns y la Teoría estándar de la argumentación jurídica'
Review Dikaion 27: 134–138

Grants, prizes & awards

2025
St Peter's College Graduate Award
Research expenses and travel to academic events abroad
2025
Award to Participate — Legal Philosophy and Constitutional Theory Junior Scholar Conference
Georgetown University, Washington DC
2024
Excellence in Scientific Research Award
Universidad Católica San Pablo
2023–2028
"Generación del Bicentenario" Scholarship
Peruvian Ministry of Education — fully funded merit-based doctoral scholarship, University of Oxford
2022
Research Grant, Research Competition for Social Sciences
Universidad Católica San Pablo
2021
Law Faculty Scholarship & St Cross Law Scholarship
Faculty of Law and St Cross College, University of Oxford
2020
Thesis approved with public felicitation and recommendation for publication
Universidad Católica San Pablo
2019
Champion — VI International Moot Competition on International Investment Arbitration
American University (Washington DC) & Universidad del Externado (Colombia)
2013–2019
Academic Excellence Award
Universidad Católica San Pablo · 1st in graduating cohort (2019)

Education

DPhil in Law · in progress
University of Oxford · Dissertation: Comparativism, Agency, and Virtue
2023 – present
Magister Juris (M.Jur)
University of Oxford
2022
Bachelor in Law (BA)
Universidad Católica San Pablo, Peru · 1st in graduating cohort
2019