Born to Explore

Christo A. Pirinsky ()
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Christo A. Pirinsky: University of Central Florida, Business Administration and Finance

Chapter 3 in A Theory of Dynamic Preferences, 2026, pp 31-52 from Springer

Abstract: Abstract This chapter looks closer at the exploration-exploitation decision. Given its importance, most living organisms have developed mechanisms incentivizing exploration. One way of motivating exploration is through the introduction of higher-level rewards for exploration activities. The chapter refers to it as propensity for exploration (PEX). Curiosity and boredom, evident in humans as well as animals, are emotions that facilitate such rewards. Data scientists refer to such exogenous objects as hyper-parameters. While data scientists could change a hyper-parameter and retrain their algorithm, a person cannot alter their genetic predispositions and relive their life. As a result, humans have developed a more flexible mechanism for fine-tuning their PEX—the adoption of biased perceptions of reality. Building on recent research, the chapter introduces the ABC-model of exploration. It states that the likelihood for the exploration of an option increases with the quantity (PEX*β) * (B—C), where B is the expected benefit of exploration, C is the expected cost of exploration, PEX is one’s inherited PEX, and β is a belief bias parameter regarding the expected net benefits of exploration. When β > 1, people would explore more; and when β

Keywords: ABC-model; Bayesian updating; Culture; Exploration deficiency; Exploration tuning; Fine-tuning; Hyper-parameter; Motivated beliefs; Propensity for exploration; PEX (search for similar items in EconPapers)
Date: 2026
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DOI: 10.1007/978-3-032-13334-2_3

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