Template-Type: ReDIF-Paper 1.0 Author-Name: Claudia Cerrone Author-Name-First: Claudia Author-Name-Last: Cerrone Author-Name: Anujit Chakraborty Author-Name-First: Anujit Author-Name-Last: Chakraborty Author-Name: Hyok Jung Kim Author-Name-First: Hyok Jung Author-Name-Last: Kim Author-Name: Leonhard Lades Author-Name-First: Leonhard Author-Name-Last: Lades Author-Workplace-Name: Department of Economics, University of California Davis Title: Estimating Present Bias and Sophistication over Effort and Money Abstract: We use a real-effort experiment to jointly estimate present bias (β) and sophistication (̂ β) parameters, separately over money (βm, ̂ βm) and effort (βe, ̂ βe). Our novel incentive structure aligns the choice scenario with the canonical assumption of choices being the interior optima of a concave utility-maximization exercise. Participants choose to (and predict to) complete 14% (and 10%) fewer tasks on the same day than on a future day, leading to an estimated βe between 0.70 and .79 (and ̂ βe between 0.80 and .88). We find no evidence of present bias or sophistication over money Length: File-URL: https://repec.dss.ucdavis.edu/files/mqi34eluxel9pvwsfpcmier4etpi/Nov11_2023.pdf File-Format: application/pdf Number: 359 Classification-JEL: KeyWords: present bias, sophistication, beliefs, experiment, real effort task, experiment Creation-Date: 20231106 Handle: RePEc:cda:wpaper:359