Sunk Cost Fallacy is "manifested in a greater tendency to continue an endeavor once an investment in money, effort, or time has been made" (Arkes & Blumer, 1985, p. 124)
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Arkes, H. R., & Blumer, C. (1985). The psychology of sunk cost. *Organizational behavior and human decision processes*, *35*(1), 124-140. <https://doi.org/10.1016/0749-5978(85)90049-4>
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