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Polborn, Mattias Krasa, Stefan Hsu, Ming Marx, Benjamin Set, Eric 2018-09-04T20:34:07Z 2018-09-04T20:34:07Z 2020-09-05T09:15:32Z 2018-04-16 2018-05 The three essays herein explore social decision-making at various scopes and for various ends. At the biological level, substantial progress has been made at the neural level in characterizing the dopaminergic and frontostriatal mechanisms mediating how we learn to adapt in such settings. Chapter \ref{chap:learning} describes research in which we combined computational modeling of strategic learning with a pathway approach to characterize association of strategic behavior with variations in the dopamine pathway. Our findings highlight dissociable roles of frontostriatal systems in strategic learning and support the notion that genetic variation, organized along specific pathways, forms an important source of variation in complex phenotypes such as strategic behavior. Even crudely biased information may be persuasive when people are not fully rational. For Chapter \ref{chap:persuasion}, using novel sender-receiver experiments, I evaluate 78 individuals' cognitive susceptibility to persuasion by comparing the relative influences of truthful strategic and non-strategic signals. The main finding is that people underestimate and undercorrect for bias. Consistent with an anchor-and-adjust heuristic, higher cognitive cost negatively affects the size of bias correction. Finally, for the research in Chapter \ref{chap:collusion} I studied the role of social preferences in inciting collusion by asking 282 online participants how they might behave in a sequential game of chance (a hidden die game) with hypothetical partners and possible cheating. Extending previous findings, I found evidence of types that are predicted by a measure of social preferences. Many people are willing to collude, given the chance. Some always refuse, even disrupting attempts at collusion. And a sizable middle are honest when only one other person colludes, but dishonest when two other people collude prior to the subject. This last group tend to prefer more altruistic options in a dictator game. Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-05-01 The student, Eric Set, accepted the attached license on 2018-04-16 at 08:59. The student, Eric Set, submitted this Dissertation for approval on 2018-04-16 at 09:08. This Dissertation was approved for publication on 2018-04-16 at 11:20. DSpace SAF Submission Ingestion Package generated from Vireo submission #12263 on 2018-08-31 at 17:19:00 Made available in DSpace on 2018-09-04T20:34:07Z (GMT). No. of bitstreams: 2 SET-DISSERTATION-2018.pdf: 2693638 bytes, checksum: 083fe4cbfb070bc8ffc141f486f4547b (MD5) LICENSE.txt: 4205 bytes, checksum: 56ebc19061a1c0bd5dad8c9471213310 (MD5) Previous issue date: 2018-04-16 Embargo set by: Seth Robbins for item 107252 Lift date: 2020-09-04T20:34:13Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system Embargo set by: Seth Robbins for item 107252 Lift date: 2020-09-04T20:37:00Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system Embargo set by: Seth Robbins for item 107252 Lift date: 2020-09-04T20:42:08Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system U of I Only Restriction Lifted for Item 107252 on 2020-09-05T09:15:32Z. application/pdf http://hdl.handle.net/2142/101169 en Copyright 2018 Eric Set behavioral economics, experimental economics, genetics, learning, voting, persuasion, cognition, political campaign, collusion, cheating, campaign game Three perspectives on social decision-making text text Economics Economics University of Illinois at Urbana-Champaign Dissertation Ph.D.