Do Quasi-Hyperbolic Preferences Explain Academic Procrastination? An Empirical Evaluation

Abstract

Traditional neoclassical thought fails to explain questions such as problems of self-control.Behavioural economics have explained these matters on the basis of the intertemporal preferences of individuals and, specifically, the so-called (β, δ) model which emphasises present bias.This opens the way to the analysis of new situations in which people can adopt incorrect indecisions that make it necessary for the government to intervene.The literature which has developed the (β, δ) model and its implications has generated a categorisation of people that is widely used but which lacks a systematic empirical evaluation.It is important to value the need for this public action.In this article, we develop a method which makes it possible to verify the main implications that this model has to explain the procrastination of university students.Using an experimental time discount task with real monetary incentives, we estimate the students' β and δ parameters and we analyse their correlation with their answers to a series of questions concerning how they plan to study for an exam.The results are ambiguous given that they back some of the model's conclusions but reject others, including a number of the most basic ones, such as the relation between present biases and some of the categories of people, these being essential to predict their behaviour.

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