Myopic Loss Aversion and Investment Decisions: From the Laboratory to the Field

Working Paper: NBER ID: w28730

Authors: Kazi Iqbal; Asadul Islam; John A. List; Vy Nguyen

Abstract: Whether, and to what extent, behavioral anomalies uncovered in the lab manifest themselves in the field remains of first order importance in finance and economics. We begin by examining behavior of retail traders/investors making investment decisions in constructed laboratory markets. Our results show that the behaviors of the traders are consistent with myopic loss aversion. We combine the lab results with a unique individual-level matched dataset on daily stock market transactions and portfolio positions over a two year period. We find that lab behaviors help to predict, but do not fully capture, the essential real-world trading analogs of retail traders.

Keywords: Myopic Loss Aversion; Investment Decisions; Behavioral Finance; Laboratory Experiments; Field Experiments

JEL Codes: C9; C93; D03; N97


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
investment behavior (G11)earnings (J31)
myopic loss aversion (MLA) (G41)portfolio size (G11)
myopic loss aversion (MLA) (G41)trading frequency (G14)
feedback frequency (C83)investment behavior (G11)

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