Human and machine: The impact of machine input on decision-making under cognitive limitations

Tamer Boyaci,, Caner Canyakmaz, and Francis de Véricourt,
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Tamer Boyaci,: ESMT European School of Management and Technology
Caner Canyakmaz,: ESMT European School of Management and Technology
Francis de Véricourt,: ESMT European School of Management and Technology

No ESMT-20-02, ESMT Research Working Papers from ESMT European School of Management and Technology

Abstract: The rapid adoption of AI technologies by many organizations has recently raised concerns that AI may eventually replace humans in certain tasks. In fact, when used in collaboration, machines can significantly enhance the complementary strengths of humans. Indeed, because of their immense computing power, machines can perform specific tasks with incredible accuracy. In contrast, human decision-makers (DM) are flexible and adaptive but constrained by their limited cognitive capacity. This paper investigates how machine-based predictions may affect the decision process and outcomes of a human DM. We study the impact of these predictions on decision accuracy, the propensity and nature of decision errors as well as the DM's cognitive efforts. To account for both flexibility and limited cognitive capacity, we model the human decision-making process in a rational inattention framework. In this setup, the machine provides the DM with accurate but sometimes incomplete information at no cognitive cost. We fully characterize the impact of machine input on the human decision process in this framework. We show that machine input always improves the overall accuracy of human decisions, but may nonetheless increase the propensity of certain types of errors (such as false positives). The machine can also induce the human to exert more cognitive efforts, even though its input is highly accurate. Interestingly, this happens when the DM is most cognitively constrained, for instance, because of time pressure or multitasking. Synthesizing these results, we pinpoint the decision environments in which human-machine collaboration is likely to be most beneficial.

Keywords: Machine-learning; rational inattention; human-machine collaboration; cognitive effort (search for similar items in EconPapers)
Date: 2020-11-30
New Economics Papers: this item is included in nep-big, nep-cbe and nep-cmp
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Citations: View citations in EconPapers (1)

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