We experimentally test a theoretically promising amendment to the ratchet-up mechanism of the Paris Agreement. The ratchet-up mechanism prescribes that parties' commitments to the global response to climate change cannot decrease over time and our results confirm that its effect is detrimental....

Bei der 26. UN-Klimakonferenz in Glasgow geht es um die Umsetzung der Ziele aus dem Pariser Klimaschutzabkommen. Im Mittelpunkt steht dabei die schrittweise Zielerhöhung der einzelnen Länder, die sich anschließend in konkreten Klimaschutzbeiträgen widerspiegeln sollen. Der vorliegende ZEW...

In this experiment, we endogenize the choice of which contribution scheme is implemented in a public good game. We investigate three rule-based contribution schemes and a voluntary contribution mechanism (VCM). The game is implemented either as a Single- or a Multi-Phase Game. In the...

In this experiment, we endogenize the choice of which contribution scheme is implemented in a public goods game. We investigate three rule-based contribution schemes. In a first step, players agree on a common group provision level using the principle of the smallest common denominator....

Das Pariser Klimaabkommen von 2015 ist mit der großen Hoffnung verbunden, die globale Erwärmung auf das vereinbarte 2-Grad-Ziel zu beschränken. Dazu sind substanzielle Klimaschutzbeiträge unabdingbar. Ein zentraler Baustein des Abkommens ist ein dynamisches Anreizsystem, das sogenannte...

In this experiment, we test whether subjects' responses to variations in the action set in a dictator game depends on induced group identities. The action set includes choices in which the dictator can either give money to or take money from the other player. As an extension to the anonymous...

We test whether and, if so, how incentives to promote pro-social behavior affect the extent to which it spills over to subsequent charitable giving. To do so, we conduct a two-period artefactual field experiment to study repeated donation decisions of more than 700 participants. We vary how...

Many public goods can be provided at different spatial levels. Evidence from social identity theory and in-group favoritism raises the possibility that where higher-level provision is more efficient, subjects’ narrow concern for local outcomes (parochialism) could harm efficiency. Building on...

From a current perspective the Paris Agreement is not sufficient to limit the global mean temperature below 2êC above pre-industrial level as intended. The Agreement stipulates that parties review, compare and ratchet up efforts to combat climate change over time. Within this process,...

From a current perspective the Paris Agreement is not sufficient to limit the global mean temperature below 2êC above pre-industrial level as intended. The Agreement stipulates that parties review, compare and ratchet up efforts to combat climate change over time. Within this process,...