
EconTalk John Kay and Mervyn King on Radical Uncertainty
Aug 3, 2020
John Kay, a prominent economist and author known for his critical views on economic models, joins Mervyn King, former Governor of the Bank of England, to discuss their co-authored work, 'Radical Uncertainty.' They delve into the pitfalls of relying on numerical probabilities in decision-making, especially highlighted by the COVID-19 pandemic. The conversation critiques traditional economic rationality, emphasizing the unpredictability of human behavior and the emotional toll of uncertainty. They advocate for adaptability and a multifaceted approach to understanding complex economic scenarios.
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Lockdown Study
- A study claimed that locking down a week earlier would have saved 36,000 lives.
- This highlights the tendency to use models to assign blame rather than understand complexities.
Cost-Benefit Analysis and Protests
- During the George Floyd protests, some economists justified the gatherings despite lockdown recommendations.
- This illustrates the selective application of cost-benefit analysis based on values.
Using Cost-Benefit Analysis Wisely
- Cost-benefit analysis can be useful for organizing thoughts and identifying key factors.
- Avoid assigning precise, often fabricated, numbers to unknown variables, as this leads to meaningless results.




