(en) In most EU Member States, but also at the international level, reference to principles has become an essential feature of the legal framework surrounding the award and performance of public contracts. A great diversity and heterogeneity shapes these principles. Together with the EU core principles of public procurement (equality, nondiscrimination, transparency), a wide range of principles is also recognized at national level, including principles of a contractual nature, principles related to administrative law, principles focusing on the competitive requirements, but also principles worded in a general way, dealing with social and environmental objectives.
Marique, Y. (2022). ‘Legal, economic and managerial principles in English public contracts – Degrees in normativity and effectiveness’. In Stéphane de La Rosa, Patricia Valcarcel Fernandez (ed.), General Principles of Public Contracts in Europe. https://hdl.handle.net/2078.5/242200