Both in the field and in the lab, participants frequently cooperate, despite the fact that the situation can be modelled as a simultaneous, symmetric prisoner's dilemma. This experiment manipulates the payoff in case both players defect, and explains the degree of cooperation by a combination of...

The „first track“ of Joint Implementation under the Kyoto Protocol gives host and investor countries total freedom in choosing a baseline for a project reducing or sequestering greenhouse gases. This is due to the fact that an overly generous granting of emission credits leads to a...

Global public good provision (e.g. environmental quality) confronts us with problems demanding both national and international co-operation. However among sovereign nations reaching agreement on mutual public good provision is difficult. Slowing down global warming is just one example. Due to...

„... an den Küsten – liest man – steigt die Flut / Der Sturm ist da, die wilden Meere hupfen / An Land, um dicke Dämme zu zerdrücken“ – dieses „Weltende“, das Jakob von Hoddis 1911, in der Endzeitstimmung vor Beginn des ersten Weltkrieges, erfühlte, findet knapp neunzig Jahre...

In December 1997, after days and nights of bargaining that culminated two years of hard negotiations, representatives of 160 governments wearily agreed in Kyoto, Japan, on a protocol to supplement the 1992 United Nations Framework Convention on Climate Change. It was hoped that this “Kyoto...

The “Kyoto Protocol”, as the first and only implementation mechanism under the UN Framework Convention on Climate Change (UNFCCC), will expire by the year 2012. There are, however, many good reasons not to abandon this multilateral approach to climate change, but to soon go for a new round...