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“Lunch at the Lab” Presentation Matt Lyle Department of mathematics&statistics University of Calgary, Alberta. Three electricity spot price models: Evidence from PJM and Alberta markets. Outline. Why these models? The random variable model The MR with Lapalcian motion and jumps model
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“Lunch at the Lab” Presentation Matt Lyle Department of mathematics&statistics University of Calgary, Alberta Three electricity spot price models: Evidence from PJM and Alberta markets
Outline • Why these models? • The random variable model • The MR with Lapalcian motion and jumps model • The MR with many jumps model • Simulation results
Why these models? • Standard models often overlook the unique characteristics seen in the electricity markets • They capture more of the statistical characteristics of electricity price paths • They are a result of the analysis found using the FFT method introduced last week
The random variable model • Let us suppose the log spot price is as follows
The random variable model • Let Where is the Noise component is the Jump component
The random variable model • We would like to be able to model directly, but we really have two components • We use the recursive method suggested by Clewlow and Strickland to remove the jumps from the noise. • This will allow us to establish the distribution for the noise…
The random variable model • The remaining noise after applying the recursive filter (anything greater then 3 std) for PJM
The random variable model • The remaining noise after applying the recursive filter (anything greater then 3 std) for Alberta
The random variable model • The density of the noise (the fit is logistic) PJM
The random variable model • The density of the noise (the fit is logistic) Alberta
The random variable model • We now have
MR with Laplacian motion and jumps • Since Brownian motion does not capture the statistical characteristics in energy markets perhaps an other type will…
The MR with many jumps model • Similar to the standard MR jump diffusion models we simply increase the number of jumps. • The idea comes from the Laplace distribution, which is similar to two exponential distributions spliced back-to-back
The MR with many jumps model • So we get the following model
Thank you • mrlyle@math.ucalgary.ca