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Bibliographic Details
Main Authors: Ekström, Erik, Kitapbayev, Yerkin, Milazzo, Alessandro, Tolonen-Weckström, Topias
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2406.16493
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Table of Contents:
  • We study a model of irreversible investment for a decision-maker who has the possibility to gradually invest in a project with unknown value. In this setting, we introduce and explore a feature of "learning-by-doing", where the learning rate of the unknown project value is increasing in the decision-maker's level of investment in the project. We show that, under some conditions on the functional dependence of the learning rate on the level of investment (the "signal-to-noise" ratio), the optimal strategy is to invest gradually in the project so that a two-dimensional sufficient statistic reflects below a monotone boundary. Moreover, this boundary is characterised as the solution of a differential problem. Finally, we also formulate and solve a discrete version of the problem, which mirrors and complements the continuous version.