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Jan Leidö

My research and teaching primarily concerns Swedish, comparative, and international aspects of the law of obligations, intellectual property law, private international law and arbitration law.



Works at

Associate professor at Department of Law
Samhällsvetarhuset, Plan 5, Umeå universitet Umeå universitet, 901 87 Umeå


LL.M. 2009 Umeå University
M.Sc. 2009 Umeå University
LL.D. 2014 Umeå University
Member of the Department since 2009


I have taught law at the Department since 2009. I teach mainly private law (civil law), comparative law, legal history, jurisprudence, private international law, arbitration, and IT law.


My research interest is characterized by the impact of globalization and digitalization on law and the latter's relationship to the emergence of private lawmaking. My research spans different areas of law such as international and comparative private law, intellectual property law, private international law, and arbitration law, but also IT law, competition law, and data privacy law.

Currently I am working on a project on transnational private regulation funded by the Foundation for Jurisprudential Research (Institutet för Rättsvetenskaplig Forskning).

Private lawmaking is emerging in an increasing number of areas. Lex mercatoria, lex sportiva, lex digitalis and EULAw are just a few examples of privately created regulation, often applied by arbitration bodies. This raises a number of questions about the scope of private lawmaking: What are the internal and external demands on private lawmaking? How do common models of private lawmaking relate to this scope? What differences can be found between different models and what can they learn from each other? How can theories of private lawmaking, legal pluralism, and the relationship between private and public lawmaking be established and developed? These are some questions that are examined in this project.

Past Research

On June 5, 2014, I defended my thesis Realizing the Single Software Market: Cross-National Validity of Software License Agreements. In this doctoral thesis, cross-national validity of certain standard software license agreements is examined as a solution to overcome national differences and improve the emerging single software market. Cross-national validity is mapped, explained, and improved under American and German law. Advisors were associate professor Johan Lindholm, Umeå University, and appellate judge and professor Tom Madell.

The thesis is published by Iustus förlag. For more information and order, contact customer support at Iustus förlag: kundtjanst@iustus.se
Alternatively, the book can also be ordered from Bokus for non-US customers.

During the Fall Semester 2012 I was a visiting student researcher at UC Berkeley, School of Information.


I am responsible for the Center of European Law and International Trade Law, as well as two research themes: The Foundations and Unity of Private Law and Law and Emerging Technologies. I am also a member of Umeå University's interdisciplinary academic research centre DIGSUM - Digital Social Research Unit Umeå.

Vänbok till Ulf Israelsson, Umeå: Juridiska institutionen, Umeå universitet 2020 : 25-41
Derlén, Mattias; Leidö, Jan; Lindholm, Johan
Vänbok till Ulf Israelsson, Umeå: Juridiska institutionen, Umeå universitet 2020 : 63-73
Enarsson, Therese; Leidö, Jan
Vänbok till Ulf Israelsson, Juridiska institutionen, Umeå universitet 2020 : 183-206
Leidö, Jan
Jubileumsskrift till Juridiska institutionen 40 år, Umeå: Juridiska institutionen, Umeå universitet 2017 : 143-167
Hultgren, Peter; Leidö, Jan
Europarättslig tidskrift, Vol. 19, (4) : 703-719
Leidö, Jan
Skrifter från Juridiska institutionen vid Umeå universitet, 31
Leidö, Jan
Förrättsligande: rapport från 2011 års forskningsinternat, Umeå: Juridik, 90187, Umeå 2011 : 47-61
Leidö, Jan