“…Additionally, transaction and information costs do not explain expensive delegated portfolio management, time diversification, or mental accounting. Furthermore, Sicherman, Loewenstein, Seppi, and Utkus (2015) and Olafsson and Pagel (2017) showed that inattention to financial accounts appears to be highly selective, that is, driven by information-or belief-based utility theories, rather than rational, that is, driven by mechanical costs and benefits. 3 In contrast, Andries and Haddad (2017) generated inattention with disappointment-averse preferences in a continuous-time portfolio-consumption model.…”