This paper analyses the formation of international environmental agreements (IEAs) under uncertainty, focusing on the … role of learning and risk aversion. It bridges two strands of literature: one focused on the role learning for the success … of IEA formation when countries are risk neutral and another that explores the implications of uncertainty and risk …

optimal policy design in a context with more than one externality while taking explicitly into account uncertainty surrounding …-focused. Besides uncertainty on the state of the world concerning actual marginal emission damage, we consider the technological … progress through R&D as well as learning-by-doing. A portfolio of three policy instruments is then needed to cope with the …