During the European financial crisis, the European Central Bank implemented a series of unconventional monetary policy measures. We argue that these unconventional monetary policy measures created soft budget constraints for the Eurozone countries by lowering their bond yield spreads. This...

International climate negotiations have so far failed to produce ambitious climate cooperation. We combine laboratory experiments with simulations to investigate the performance of two negotiation design features to address this failure: The Paris Agreement's ratchet-up mechanism, which requires...