This paper estimates single factor stochastic models describing daily air temperature behaviour. We modify classical financial models to reflect temperature seasonality and fit them to a time series representing temperatures in Spain. The estimated models are used in Montecarlo simulations to obtain heating and cooling degree-days, which are used as an underlying reference in weather derivatives. The final goal of this work is to obtain an insight into weather derivative valuation, and so making it easier to manage economic activity risks closely related to temperature (i.e. oil, gas and electricity prices and volumes). En este trabajo se estiman modelos estocásticos unifactoriales que describen elcomportamiento de la temperatura del aire de un índice representativo de la Españapeninsular. Los modelos más utilizados en finanzas se adaptan para incorporar elcomportamiento estacional de la variable temperatura. El objetivo de este trabajo es obtenerresultados que permitan avanzar en la valoración de activos derivados sobre climatología.Este tipo de derivados permiten gestionar riesgos de la actividad económica estrechamenterelacionados con la temperatura (por ejemplo, los riesgos de precio y volumen del gas y laelectricidad). Con los modelos estimados se realiza un ejercicio de simulación de Montecarlopara obtener los grados día frío y los grados día calor que son las referencias subyacentes enlos contratos de meteorología.
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Paper provided by Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie) in its series Working Papers. Serie EC with number
2001-22.
Find related papers by JEL classification: G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data) G12 - Financial Economics - - General Financial Markets - - - Asset Pricing
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