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  • 1
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    Bonn: Institute of Labor Economics (IZA)
    Publication Date: 2019-09-04
    Description: The effectiveness of social interaction depends strongly on an ability to coordinate actions efficiently. In large networks, such coordination may be very difficult to achieve and may depend on the communication technology and the network structure. We examine how pre-play communication and clustering within networks affect coordination in a challenging experimental game on eight-person networks. Free-form chat is enormously effective in achieving the nonequilibrium efficient outcome in our game, but restricted communication (where subjects can only indicate their intended action) is almost entirely ineffective. We can rationalize this result with a novel model about the credibility of cheap-talk messages. This credibility is much larger with freeform message communication than with restricted communication. We are the first to model this credibility and show, both theoretically and experimentally, an interaction effect of network structure and communication technologies. We also provide a model of message diffusion, which indeed predicts that diffusion will be more rapid without clustering and is consistent with our data.
    Keywords: C71 ; C91 ; D03 ; D85 ; ddc:330 ; networks ; clustering ; communication ; credibility ; cheap talk ; experiment
    Language: English
    Type: doc-type:workingPaper
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  • 2
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    Bonn: Institute of Labor Economics (IZA)
    Publication Date: 2019-09-04
    Description: We consider the external validity of laboratory measures of risk attitude. Based on a large-scale experiment using a representative panel of the Dutch population, we test if these measures can explain two different types of behavior: (i) behavior in laboratory risky financial decisions, and (ii) behavior in naturally-occurring field behavior under risk (financial, health and employment decisions). We find that measures of risk attitude are related to behavior in laboratory financial decisions and the most complex measures are outperformed by simpler measures. However, measures of risk attitude are not related to risk-taking in the field, calling into question the methods currently used for the purpose of measuring actual risk preferences. We conclude that while the external validity of measures of risk attitude holds in closely related frameworks, this validity is compromised in more remote settings.
    Keywords: C91 ; C93 ; D81 ; ddc:330 ; lab-in-the-field experiment ; elicitation methods ; risk preferences
    Language: English
    Type: doc-type:workingPaper
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  • 3
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    Stockholm: Research Institute of Industrial Economics (IFN)
    Publication Date: 2019-01-24
    Description: We report the results of a randomized controlled trial testing whether incentivizing physical exercise improves the academic performance of college students. As expected, the intervention increases physical activity. The main result is that it generates a strong and significant improvement in academic performance, particularly for students who struggled at the baseline in terms of lifestyle habits. We also provide evidence on the underlying mechanisms: Students who were incentivized to exercise have a healthier life style and improved self-control. Overall, the study demonstrates that incentivizing students to exercise can be an important tool in improving educational achievements.
    Keywords: C93 ; I12 ; I18 ; I21 ; Z20 ; ddc:330 ; Economics of education ; Human capital formation ; Behavior change ; Field experiment ; Sport ; Bildungsniveau ; Studierende ; Experiment ; Norwegen
    Language: English
    Type: doc-type:workingPaper
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  • 4
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    Bonn: Institute for the Study of Labor (IZA)
    Publication Date: 2017-06-21
    Description: Economists typically predict that people are inherently selfish; however, experimental evidence suggests that this is often not the case. In particular, delegating a choice (such as a wage) to the performing party may imbue this party with a sense of responsibility, leading to improved outcomes for both the delegating entity and the performing party. This strategy can be risky, as some people will still choose to act in a selfish manner, causing adverse consequences for productivity and earnings. An important issue to consider is therefore how to encourage a sense of responsibility in the performing party.
    Keywords: B49 ; C91 ; D03 ; J2 ; J3 ; ddc:330 ; delegation ; responsibility ; social outcomes ; experimental evidence
    Language: English
    Type: doc-type:article
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  • 5
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    Munich: Center for Economic Studies and Ifo Institute (CESifo)
    Publication Date: 2019-08-22
    Description: The effectiveness of social interaction depends strongly on an ability to coordinate actions efficiently. In large networks, such coordination may be very difficult to achieve and may depend on the communication technology and the network structure. We examine how pre-play communication and clustering within networks affect coordination in a challenging experimental game on eight-person networks. Free-form chat is enormously effective in achieving the non-equilibrium efficient outcome in our game, but restricted communication (where subjects can only indicate their intended action) is almost entirely ineffective. We can rationalize this result with a novel model about the credibility of cheap-talk messages. This credibility is much larger with freeform message communication than with restricted communication. We are the first to model this credibility and show, both theoretically and experimentally, an interaction effect of network structure and communication technologies. We also provide a model of message diffusion, which indeed predicts that diffusion will be more rapid without clustering and is consistent with our data.
    Keywords: C71 ; C91 ; D03 ; D85 ; ddc:330 ; networks ; clustering ; communication ; credibility ; cheap talk ; experiment
    Language: English
    Type: doc-type:workingPaper
    Location Call Number Limitation Availability
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  • 6
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    Unknown
    Bonn: Max Planck Institute for Research on Collective Goods
    Publication Date: 2020-05-19
    Description: The effectiveness of social interaction depends strongly on an ability to coordinate actions efficiently. In large networks, such coordination may be very difficult to achieve and may depend on the communication technology and the network structure. We examine how pre-play communication and clustering within networks affect coordination in a challenging experimental game on eight-person networks. Free-form chat is enormously effective in achieving the nonequilibrium efficient outcome in our game, but restricted communication (where subjects can only indicate their intended action) is almost entirely ineffective. We can rationalize this result with a novel model about the credibility of cheap-talk messages. This credibility is much larger with freeform message communication than with restricted communication. We are the first to model this credibility and show, both theoretically and experimentally, an interaction effect of network structure and communication technologies. We also provide a model of message diffusion, which indeed predicts that diffusion will be more rapid without clustering and is consistent with our data.
    Keywords: C71 ; C91 ; D03 ; D85 ; ddc:330 ; Networks ; Clustering ; Communication ; Credibility ; Cheap talk ; Experiment
    Language: English
    Type: doc-type:workingPaper
    Location Call Number Limitation Availability
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