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Welcome to this online experiment!

In this experiment, you will have to make choices that will affect your payoff and the payoff of the other players. During the entire experiment, your choices and answers will remain anonymous. Your personal information will only be used to pay you. The experiment consists of three separate parts.

In the first part, you will play in groups of 2 for 20 rounds. In each round, the groups will be reformed, so that you do not know who you will play with. You will have to choose a number between 1 and 100. Then, the average of all the choices of the members of your group (including yours) will be calculated and multiplied by a coefficient. You should try to guess the resulting number with your choice as accurately as possible, since your payoff will depend on the accuracy this guess. In particular, your payoff function will be equal to:

payoff = 20 - |x - coefficient × average|

where x indicates your choice. Notice the absolute value in the function, meaning that it does not matter whether your guess is above or below the target value. You can also notice that if your guess is more than 20 points away from the target value, you will not earn anything. The value of the coefficient changes in every round randomly, taking the either the value of 23 or 43. You will know the value taken by the coefficient in each round when making your choice. For this part, you will receive 0.01$ for each point earned. All the rounds will contribute to your final payoff equally.

In the second part, you will have to choose two numbers between 1 and 100. Your payoff will be determined as follows:

payoff = 10 - |x - coefficient × average| + 10 - |y - coefficient × average|

where x and y indicate your choices, and average is the average of the two numbers you will choose. You will play this part twice, the first time the coefficient will be equal to 43, and the second time it will be equal to 23. As before, you will receive 0.01$ for each point earned. Both rounds will contribute to your final payoff equally.

In the third part, you will have to individually answer seven questions. Please, read the questions carefully but try to answer quickly. For this part, you will receive 4$ irrespectively of your answers.

After these three parts, you will be asked to fill in some information regarding your age, gender, and completed studies. All the information you will provide will remain anonymous and only be used for the purpose of data analysis.

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