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Understanding and valuing environmental issues: the effects of availability and anchoring on judgment
J van der Pligt1, E C van Schie, R Hoevenagel
1Universiteit van Amsterdam, Department of Social Psychology, The Netherlands. sp_pligt@macmail.psy.uva.nl
Zeitschrift Fur Experimentelle Psychologie : Organ Der Deutschen Gesellschaft Fur Psychologie
|December 19, 1998
Summary
Cognitive biases like availability and anchoring-and-adjustment significantly influence public perception of environmental risks and willingness to pay for mitigation. These heuristics impact environmental beliefs and valuations, with limited effect from corrective measures.
Area of Science:
- Environmental Psychology
- Behavioral Economics
- Risk Perception
Background:
- Cognitive heuristics, specifically availability and anchoring-and-adjustment, are known to influence judgment and decision-making.
- Understanding these biases is crucial for accurately assessing public perception of environmental issues and valuing environmental goods.
Purpose of the Study:
- To investigate the impact of availability and anchoring-and-adjustment heuristics on lay people's perceptions of environmental risk causes.
- To examine how these heuristics affect public valuation of environmental goods and willingness to pay (WTP) for risk mitigation.
Main Methods:
- Three studies assessed the influence of availability and anchoring-and-adjustment on estimating causes of complex environmental risks (e.g., acid rain, global warming).
- Three additional studies explored the effects of these heuristics on willingness to pay (WTP) surveys for environmental protection.
Main Results:
- Estimating the causes of complex environmental risks is significantly affected by availability and anchoring-and-adjustment, with persistent effects over time.
- Corrective procedures showed limited success in mitigating these heuristic effects.
- The heuristics demonstrably impact the outcomes of willingness to pay (WTP) research, influencing environmental valuations.
Conclusions:
- Availability and anchoring-and-adjustment heuristics play a substantial role in shaping public beliefs and values regarding environmental issues.
- Findings have significant implications for environmental policy decision-making, risk communication, and the design of willingness to pay (WTP) surveys.
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01:25The Anchoring-and-Adjustment Heuristic
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