Worst-Case Economics

Worst-Case Economics : Extreme Events in Climate and Finance

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Why do climate and financial crises pose such extreme risks? And what does it take to respond effectively to those risks? Extreme weather events - storms and sea-level rise, heat waves, droughts and floods - seem ever more common and extreme, while scientists warn of even greater climate risks ahead. Financial failures on the scale of 2008 make a mockery of the supposed efficiency of the market economy. None of this would be possible in the world as imagined by conventional economics - an imaginary land of gradualism, equilibrium, well-informed rationality and the win-win solutions dealt by the invisible hand. The erratic rhythm of boom and bust in financial markets could be explained either by the patterns of crowd-following behaviour among investors, or by the unequal distribution of wealth (and the impact of the largest investors on the markets). Climate crises reflect the fact that natural systems can reach tipping points or critical transitions, where gradual change gives way to large-scale discontinuous changes. The economics of climate change has lagged behind the science, understating the severity of the problem and the likelihood of a crash. While the causes of climate and financial extremes are distinct, the implications for public policy have much in common. The frequency of extreme events, of varying sizes, means that there is no way to predict the likely size of future crises. The traditional approach to risk aversion cannot account for longstanding patterns in financial markets. Better theories of risk call for more precautionary approaches to both financial and climate policy. In the frequent cases in which potential outcomes have unknown probabilities, the best policy is based on the worst-case credible scenario. When a single catastrophic risk commands everyone's attention, a World War II-style, costs-be-damned mobilization is the right response. There is no formula for perfect responses to extreme risks, but there are important guideposts that point toward better answers.show more

Product details

  • Hardback | 208 pages
  • 140 x 216 x 25mm | 454g
  • Anthem Press
  • London, United Kingdom
  • English
  • 1783087072
  • 9781783087075

About Frank Ackerman

Frank Ackerman is an economist whose extensive research and writing focus on climate change and energy, environmental policy and cost-benefit analysis.show more