With the adoption of the 2030 Agenda, UN Member States pledge “to leave no one behind” and “endeavour to reach the furthest behind first”. The EU Just Transition Fund (JTF) was designed to meet these policy objectives. It is one of three pillars of the Just Transition Mechanism, aiming at fair delivery of the European Green Deal and reducing adverse social and economic impacts of the transition towards a climate-neutral Europe. We examine the formulation of the JTF Regulation, from January 2020 until July 2021 and analyse seven topics of importance during the JTF formulation. Based on the results, we identify and discuss four paradoxes related to governance scales, offsetting exclusion, equity illusion, and eligibility criteria. The paradoxes arise from tension between the all-inclusive objective to leave no one behind, and selective affirmative actions, seeking to reach the furthest behind first. Results of the analysis enabled us to put forward plausible strategies to embrace these policy paradoxes to offer important lessons learned for the JTF and also to future policies that seek to leave no one behind.

随着 2030 年议程的通过，联合国会员国承诺“不让任何人掉队”并“努力首先到达最落后的人”。欧盟公正过渡基金 (JTF) 旨在实现这些政策目标。它是公正过渡机制的三大支柱之一，旨在公平交付欧洲绿色协议和减少向气候中和欧洲过渡的不利社会和经济影响。我们审查了从 2020 年 1 月到 2021 年 7 月的联合特遣部队条例的制定，并分析了联合特遣部队制定期间的七个重要主题。根据结果​​，我们确定并讨论了与治理规模、抵消排斥、公平幻觉和资格标准相关的四个悖论。这些悖论源于包罗万象的目标（不让任何人掉队）与选择性的平权行动（寻求首先到达最落后的人）之间的紧张关系。分析结果使我们能够提出合理的策略来接受这些政策悖论，从而为联合特遣部队提供重要的经验教训，也为寻求不让任何人掉队的未来政策提供重要的经验教训。