Misconceptions of risk / Terje Aven.

ISBN:

9780470683880

Título:

Autor:

Aven, T. (Terje)

Autor personal:

Aven, T. (Terje)

Información de la publicación:

Chichester : Wiley, c2010.

Descripción física:

viii, 240 p. : ill. ; 24 cm.

Contenido:

Risk is equal to the expected value -- Risk is a probability or probability distribution -- Risk equals a probability distribution quantile (value-at-risk) -- Risk equals uncertainty -- Risk is equal to an event -- Risk equals expected disutility -- Risk is restricted to the case of objective probabilities -- Risk is the same as risk perception -- Risk relates to negative consequences only -- Risk is determined by the historical data -- Risk assessments produce an objective risk picture -- There are large inherent uncertainties in risk analyses -- Model uncertainty should be quantified -- It is meaningful and useful to distinguish between stochastic and epistemic uncertainties -- Bayesian analysis is based on the use of probability models and Bayesian updating -- Sensitivity analysis is a type of uncertainty analysis -- The main objective of risk management is risk reduction -- Decision-making under uncertainty should be based on science (analysis) -- The precautionary principle and risk management cannot be meaningfully integrated -- Conclusions.

Término del tema:

Risk -- Sociological aspects.

Risk -- Statistical methods.

Risk perception.

Formato:

Libros

Fecha de publicación:

2010

WAIT_PUBINFO:

Chichester : Wiley, c2010.

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Resumen

We all face risks in a variety of ways, as individuals, businesses and societies. The discipline of risk assessment and risk management is growing rapidly and there is an enormous drive for the implementation of risk assessment methods and risk management in organizations. There are great expectations that these tools provide suitable frameworks for obtaining high levels of performance and balance different concerns such as safety and costs.

The analysis and management of risk are not straightforward. There are many challenges. The risk discipline is young and there area a number of ideas, perspectives and conceptions of risk out there. For example many analysts and researchers consider it appropriate to base their risk management policies on the use of expected values, which basically means that potential losses are multiplied with their associated consequences. However, the rationale for such a policy is questionable.

A number of such common conceptions of risk are examined in the book, related to the risk concept, risk assessments, uncertainty analyses, risk perception, the precautionary principle, risk management and decision making under uncertainty. The Author discusses these concepts, their strenghts and weaknesses, and concludes that they are often better judged as misconceptions of risk than conceptions of risk.

Key Features:

Discusses common conceptions of risk with supporting examples. Provides recommendations and guidance to risk analysis and risk management. Relevant for all types of applications, including engineering and business. Presents the Author's overall conclusions on the issues addressed throughout the book.

All those working with risk-related problems need to understand the fundamental ideas and concepts of risk. Professionals in the field of risk, as well as researchers and graduate sutdents will benefit from this book. Policy makers and business people will also find this book of interest.

Notas del autor

Terje Aven, University of Stavanger, Norway.'Terje Aven is Professor of risk management and the Principal Researcher at the International Research Institute of Stavanger (IRIS). He's worked both in industry (5 years) and academia (20 years). In that time he has participated in, and led, many safety and risk related projects, and has won several awards for both research and teaching. He has published numerous papers in international journals and has authored several books.

Tabla de contenido

Preface	p. vii
Acknowledgements	p. ix
1 Risk is equal to the expected value	p. 1
2 Risk is a probability or probability distribution	p. 17
3 Risk equals a probability distribution quantile (value-at-risk)	p. 35
4 Risk equals uncertainty	p. 43
5 Risk is equal to an event	p. 55
6 Risk equals expected disutility	p. 61
7 Risk is restricted to the case of objective probabilities	p. 71
8 Risk is the same as risk perception	p. 83
9 Risk relates to negative consequences only	p. 93
10 Risk is determined by the historical data	p. 97
11 Risk assessments produce an objective risk picture	p. 107
12 There are large inherent uncertainties in risk analyses	p. 115
13 Model uncertainty should be quantified	p. 135
14 It is meaningful and useful to distinguish between stochastic and epistemic uncertainties	p. 145
15 Bayesian analysis is based on the use of probability models and bayesian updating	p. 149
16 Sensitivity analysis is a type of uncertainty analysis	p. 167
17 The main objective of risk management is risk reduction	p. 179
18 Decision-making under uncertainty should be based on science (analysis)	p. 191
19 The precautionary principle and risk management cannot be meaningfully integrated	p. 215
20 Conclusions	p. 227
Index	p. 239