Maria Regina Redinha is a Professor at the University of Porto, Portugal, as well as the Director of the Centre for Legal and Economic Research at the same institution. Her main research fields of interest are atypical employment, the digital workplace, and the labour implications of the sharing economy.Maria Raquel Guimarães is a Professor of Law at the University of Porto, Portugal, teaching civil law and contract law. A researcher at the Centre for Legal and Economic Research, she is also the General Editor of the law journal RED—Revista Electrónica de Direito. Her main research fields are contract law, including electronic payments, e-commerce and consumer protection.Francisco Liberal Fernandes is a Professor in the Faculty of Law at the University of Porto, Portugal. He teaches courses on Labour Law and Real Estate Law. He is a researcher at the Centre for Legal and Economic Research. He has published more than fifty titles in the field of labour law.