Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
A generalized Schwartz model for energy spot prices — Estimation using a particle MCMC method. / Brix, Anne Floor; Lunde, Asger; Wei, Wei.
In: Energy Economics, Vol. 72, 2018, p. 560-582.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
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TY - JOUR
T1 - A generalized Schwartz model for energy spot prices — Estimation using a particle MCMC method
AU - Brix, Anne Floor
AU - Lunde, Asger
AU - Wei, Wei
PY - 2018
Y1 - 2018
N2 - We investigate a large set of energy models that account for the stylized properties in energy prices, especially stochastic volatility and spikes. The models under consideration belong to the class of factor models while our full model features a two-factor price process and a two-component stochastic volatility process. The first factor in the price process captures the normal variations; the second accounts for spikes. The two-component volatility allows for a flexible autocorrelation structure. Instead of using various filtering techniques for splitting the factors, as often found in the literature, we estimate the model in one step using the particle MCMC method. We fit the models to both the spot market and the forward market for UK natural gas. We find that the inclusion of stochastic volatility is crucial for the statistical fit of spot prices whereas the spikes are important for explaining forward prices.
AB - We investigate a large set of energy models that account for the stylized properties in energy prices, especially stochastic volatility and spikes. The models under consideration belong to the class of factor models while our full model features a two-factor price process and a two-component stochastic volatility process. The first factor in the price process captures the normal variations; the second accounts for spikes. The two-component volatility allows for a flexible autocorrelation structure. Instead of using various filtering techniques for splitting the factors, as often found in the literature, we estimate the model in one step using the particle MCMC method. We fit the models to both the spot market and the forward market for UK natural gas. We find that the inclusion of stochastic volatility is crucial for the statistical fit of spot prices whereas the spikes are important for explaining forward prices.
KW - ELECTRICITY
KW - Energy prices
KW - Forward prices
KW - INFERENCE
KW - JUMP DIFFUSION
KW - MARKET PRICE
KW - Multi-factor model
KW - RISK
KW - SIMULATION
KW - Spikes
KW - Stochastic volatility
UR - http://www.scopus.com/inward/record.url?scp=85047067277&partnerID=8YFLogxK
U2 - 10.1016/j.eneco.2018.03.037
DO - 10.1016/j.eneco.2018.03.037
M3 - Journal article
AN - SCOPUS:85047067277
VL - 72
SP - 560
EP - 582
JO - Energy Economics
JF - Energy Economics
SN - 0140-9883
ER -