Griet Jans is the chief economist and part of the board of the Belgian Competition Authority. She leads the Chief Economist Team, and advises both the investigation teams of the Prosecutor General and the Competition Colleges on the use of economic tools and quantitative techniques in competition cases. Griet started at the authority as the deputy chief economist and economic advisor, where she worked on several non-simplified merger cases in different sectors, such as telecom and media, basic industries, retail activities and services. Besides this, she is the Secretary-General of the Association of Competition Economics (ACE), a distinguished non-profit network that brings together competition economists working in government, academia and the private sector, and she co-organizes the yearly conference of Competition, a specialized journal for competition and competition law in Belgium.