Arbeitspapier

Collective minimum contributions to counteract the ratchet effect in the voluntary provision of public goods

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. We design a public goods game to study whether an amendment to the mechanism that stipulates all agents to contribute at least a collective minimum to the public good which is based on the principle of the lowest common denominator promotes cooperation. We find that binding collective minimum contributions improve the effectiveness of the ratchet-up mechanism. Non-binding minimum contributions, in contrast, do not foster cooperation. Our data reveal conditional cooperative dynamics to explain the difference. If other participants contribute less than the collective minimum contributions, even initially cooperative participants start to negatively reciprocate such a form of non-compliance by contributing less.

Language
Englisch

Bibliographic citation
Series: ZEW Discussion Papers ; No. 22-053

Classification
Wirtschaft
Noncooperative Games
Design of Experiments: Laboratory, Group Behavior
Public Goods
Subject
global public goods
climate change
institutions
ratchet-up mechanism
minimum contributions
laboratory experiment

Event
Geistige Schöpfung
(who)
Alt, Marius
Gallier, Carlo
Kesternich, Martin
Sturm, Bodo
Event
Veröffentlichung
(who)
ZEW - Leibniz-Zentrum für Europäische Wirtschaftsforschung
(where)
Mannheim
(when)
2022

Handle
Last update
10.03.2025, 11:45 AM CET

Data provider

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Object type

  • Arbeitspapier

Associated

  • Alt, Marius
  • Gallier, Carlo
  • Kesternich, Martin
  • Sturm, Bodo
  • ZEW - Leibniz-Zentrum für Europäische Wirtschaftsforschung

Time of origin

  • 2022

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