Modeling the Price Dynamics of Co2 Emission Allowances
Eva A. Benz
University of Bonn - Bonn Graduate School of Economics
Macquarie University Sydney - Department of Economics; Financial Research Network (FIRN)
February 20, 2008
In this paper we analyze the short-term spot price behavior of carbon dioxide (CO2) emission allowances of the new EU-wide CO2 emissions trading system (EU-ETS). After reviewing the stylized facts of this new class of assets we investigate several approaches for modeling the returns of emission allowances. Due to the different phases of price and volatility behavior in the returns, we suggest the use of Markov switching and AR-GARCH models for stochastic modeling. We examine the approaches by conducting an in-sample and out-of-sample forecasting analysis and by comparing the results to alternative approaches. Our findings strongly support the adequacy of the models capturing characteristics like skewness, excess kurtosis and in particular different phases of volatility behavior in the returns.
Number of Pages in PDF File: 33
Keywords: CO2 Emission Allowances, Emissions Trading, Spot Price Modeling, Regime-Switching Models
JEL Classification: C22, Q43, C51working papers series
Date posted: May 19, 2006 ; Last revised: March 4, 2008
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