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	Provedor de dados AgEcon (2) Autor Naevdal, Eric (2) Margolis, Michael (1) Palavra-chave C61 (1) Critical zone (1) Environmental Economics and Policy (1) Eutrophication Thresholds (1) Mixed risk spaces (1) Optimal control (1) Q20 (1) Q30 (1) Resource /Energy Economics and Policy (1) Risk and Uncertainty (1) Safe minimum standards (1) Threshold effects (1) Mais... Tipo do documento Conference Paper or Presentation (1) Working or Discussion Paper (1) Ano 2004 (1) 1999 (1) País United States (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Safe Minimum Standards in Dynamic Resource Problems -- Conditions for Living on the Edge of Risk AgEcon Margolis, Michael; Naevdal, Eric. Safe Minimum Standards (SMSs) have been advocated as a policy rule for environmental problems where uncertainty about risks and consequences are thought to be profound. This paper explores the rationale for such a policy within a dynamic framework and derives conditions for when SMSs can be summarily dismissed as a policy choice and for when SMSs can be defended as an optimal policy based on standard economic criteria. We have determined that these conditions can be checked with quite limited information about damages and risks. In order to analyze the SMSs in a dynamic setting, we have developed a method for solving optimal control problems where the state space is divided into risky and non-risky subsets. Tipo: Working or Discussion Paper Palavras-chave: Safe minimum standards; Optimal control; Critical zone; Threshold effects; Mixed risk spaces; Risk and Uncertainty; C61; Q20; Q30. Ano: 2004 URL: http://purl.umn.edu/10568 OPTIMAL REGULATION OF EUTROPHYING LAKES, FJORDS AND RIVERS IN THE PRESENCE OF THRESHOLD EFFECTS AgEcon Naevdal, Eric. In a large number of practical environmental regulation problems, the damage done by pollutants depends on stocks and/or flows of pollutants exceeding certain thresholds. A typical example is eutrophication which occur when stocks of nutrients in a lake exceeds a certain threshold. The present paper presents a model of eutrophication that accounts for such thresholds. The paper does so by applying a novel technique in optimal control theory that allows for the analysis of systems where state-variables bounce back and forth over thresholds that take the form of functions of time and state-variables. Tipo: Conference Paper or Presentation Palavras-chave: Eutrophication Thresholds; Environmental Economics and Policy; Resource /Energy Economics and Policy. Ano: 1999 URL: http://purl.umn.edu/21619 Registros recuperados: 2 Primeira ... 1 ... Última

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