Visual Saliency and Investment Decisions

When: 29 Sep 2025, 14:15-15:30
Where: HoF 1.01 + online
Speaker: Alessandro Romano

Hybrid event.

uni-frankfurt.zoom-x.de/j/64268594375
Meeting ID: 642 6859 4375
Password: 604636

Visual Saliency and Investment Decisions 
(by Alfredo Desiato, Luca Enriques, Kenneth Khoo, Yoon-Ho Alex Lee, and Alessandro Romano)
Abstract:

Despite regulatory efforts to improve fee transparency, investors persistently underweight fees and overweight past performance. We employ webcam-based eye-tracking technology in a large-scale online experiment to investigate how manipulating the visual saliency of fees shapes investment decisions. Participants allocated $100 between pairs of equity funds differing in fees and historical returns, with treatments enhancing fee prominence through larger font sizes or strategic screen placement (top/left). We find that increasing fee saliency reduces time-to-first-fixation (TTFF) on past performance graphs by 47–75% and significantly increases dwell time on fees by 3–5.8%. These shifts in visual attention are associated with an 11.2% greater allocation to lower-fee funds in treatment groups compared to the control, with effects magnified for fund pairs exhibiting larger fee differentials. Our results demonstrate that interface design choices—such as prioritizing fee visibility over performance graphics—can meaningfully reduce biases in investor decision-making. By identifying the precise mechanisms of attention through which saliency interventions influence choices, we advance the saliency literature in behavioral finance and provide actionable insights for regulators and platforms aiming to improve fee transparency.

Paper 

Note: we have only conducted one experiment, and we plan to conduct two more and gather field data to (hopefully) reinforce our findings. We are in the process of designing the follow-up studies and deciding which aspects to investigate, so any feedback on the direction to take would be truly appreciated.

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