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Rules of Play:
There are three players in the game, including you. Every player simultaneously faces the same decision-making problem. At the beginning of the experiment, you will receive an endowed income. Each player will receive an endowment of $4. The game consists of 5 rounds. In each round, you -- along with the other 2 players -- will decide how much of your income you want to invest into a climate account. The climate account has been set up to protect the climate and evade dangerous climate change, which can result in significant economic losses.
In order for the climate account to protect against climate change, there must be $6 collectively invested in the account by the end of the fifth round.
The $6 climate account threshold can be reached if every player invests, on average, $0.40 per round into climate protection. If this is the case, $1.20 on average will be collectively paid into the climate account per round.
Note: The total amount collectively invested in the climate account will be displayed after each round, along with individual investments. Only when each player has made their choice will all decisions be displayed simultaneously. Players will make decisions anonymously.
Use of the money in the climate account: If $6 has been collectively invested in the climate account, we (the researchers) will buy carbon offsets with those funds. (If $6 has not been invested, we will not buy carbon offsets.)