Alexandra Sieffert-Xuriguera

JPTT-Vitale (Paris)

Alexandra Sieffert-Xuriguera is a French qualified lawyer member of the Paris bar. She graduated from the Universities Paris 2 Panthéon-Assas (Advanced Master Degree in European Business Law), Humboldt Universität zu Berlin (LL.M. in German Law) and the College of Europe (LL.M. in European Law). She is a French native-speaker also fluent in English, German and Italian. She focuses her practice on Competition Law. Since 2017 she is working at JPTT & Partners, a boutique specialised in EU and French competition and regulatory law.

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JPTT-Vitale (Paris)


822 Bulletin

Jean-Paul Tran Thiet, Alexandra Sieffert-Xuriguera Regulated prices & energy: an overview of EU and national case law


This Special Issue provides an overview of the main developments related to Regulation and Competition in the Energy sector from 2002 to September 2020.

As the concept of “Regulation” has a very broad and sometimes ambiguous meaning, many authors have tried to define it. One of the most popular definition is from Philip Selznick, which states that regulation is a “sustained and focused control exercised by a public agency over activities that are valued by the community”. As David Levi-Faur explained in his Handbook on the politics of regulation, this definition implies that regulation involves “a continuous action of monitoring, assessment, and refinement of rules rather than ad hoc operation”.

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