Following Russia’s invasion of Ukraine, the risk of a prolonged physical supply shortage of natural gas is higher than ever before. While European Union (EU) institutions and member states are discussing the possibility of imposing an embargo or a gradual phase out in this sector, an abrupt...

Long-term supply contracts often have ambiguous effects on the competitive structure, investment and consumer welfare in the long term. In a context of market building, these effects are likely to be worsened and thus even harder to assess. Since liberalization and especially since the release...