Submitted by Daniel Modenesi de Andrade (danielmodenesi@gmail.com) on 2017-11-23T12:03:11Z No. of bitstreams: 1 Andrade_Daniel__Thesis_Library.pdf: 1197986 bytes, checksum: 31ab3152597e1ec174119028502264c7 (MD5) / Approved for entry into archive by ÁUREA CORRÊA DA FONSECA CORRÊA DA FONSECA (aurea.fonseca@fgv.br) on 2017-11-27T19:15:21Z (GMT) No. of bitstreams: 1 Andrade_Daniel__Thesis_Library.pdf: 1197986 bytes, checksum: 31ab3152597e1ec174119028502264c7 (MD5) / Made available in DSpace on 2017-11-29T14:06:22Z (GMT). No. of bitstreams: 1 Andrade_Daniel__Thesis_Library.pdf: 1197986 bytes, checksum: 31ab3152597e1ec174119028502264c7 (MD5) Previous issue date: 2017-08-01 / This dissertation reports empirical evidence on the impact of planning and monitoring (feedback) on performance/deviation, failure to achieve the goal, and overconfidence. One hundred and eighty-six proprietary day traders participated in an experiment, where they were exposed to interventions before starting trading. Subjects were randomly assigned to one of four groups: planning, feedback, a combination of both interventions, and a control group. The treatment phase lasted one week, constituting a mixed design. The main findings are: a) only the monitoring process can be used as a self-control mechanism oriented to goal achievement, But in situations where traders keep tracking their performances without associate it to a goal, they are sensitive to unfavorable outcomes; b) planning the gain target for the day was not a successful strategy neither toward goal achievement nor to performance; c) traders who use the past day return as a forecasting source became more overconfident in reaching the weekly income.