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Updated: Aug 15, 2025

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Published on: June 21, 2019
Extra-experimental scarcity impacts hypothetical operant demand: A natural SARS-CoV-2 eperiment
Derek D Reed1, Brent A Kaplan2, Fernanda S Oda1
1Department of Applied Behavioral Science, University of Kansas, 4001 Dole Human Development Center, 1000 Sunnyside Ave., Lawrence, KS 66044, USA; Cofrin Logan Center for Addiction Research & Treatment, 3061 Dole Human Development Center, 1000 Sunnyside Ave., Lawrence, KS 66045, USA.
Behavioral economic demand models show that market pressures, like those during the SARS-CoV-2 pandemic, significantly influence consumer purchasing behavior. Hypothetical commodity purchase tasks accurately reflect these real-world economic shifts.
Area of Science:
- Behavioral Economics
- Consumer Psychology
- Health Economics
Background:
- Behavioral economic demand models assess how organisms defend commodity consumption.
- Commodity purchase tasks offer a psychometrically sound method for evaluating demand for retail products.
- Operant literature indicates economy type (open vs. closed) impacts demand, but this is understudied in commodity purchase tasks.
Purpose of the Study:
- To investigate the impact of real-world market pressures on commodity demand using hypothetical purchase tasks.
- To examine how SARS-CoV-2 pandemic-related economic changes affected consumer demand for essential goods.
- To assess the construct validity of commodity purchase tasks under varying economic conditions.
Main Methods:
- A crowdsourced, within-subject design was employed to compare consumer demand at two time points during the SARS-CoV-2 pandemic.
- Hypothetical commodity purchase tasks were used to assess demand for hand lotion, sanitizer, paper towels, toilet paper, soda, and water.
- The study leveraged natural market fluctuations caused by pandemic-related economic shifts as a natural experiment.
Main Results:
- Commodity purchase tasks demonstrated sensitivity to external market pressures, such as scarcity induced by economic closures.
- Consumer demand for certain retail goods was significantly altered by the pandemic's economic impact.
- The findings support the reliability of self-reported data from purchase tasks.
Conclusions:
- Hypothetical commodity purchase tasks are valid tools for measuring consumer demand, even under significant external economic pressures.
- The study provides evidence for the construct validity of purchase tasks in reflecting real-world economic influences.
- Understanding demand shifts during crises is crucial for economic and public health strategies.
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