Considering U.S. natural gas prices at one hub and several city gates, we investigate the structural evolution of natural gas prices (i.e. law of one price), and the potential convergence or divergence of gas prices across the country. First, we extract the latent common price component, which...

Recent research has focused on the prevailing relationship between crude oil and natural gas prices. Nowadays, it is well acknowledged that crude oil prices often drive natural gas prices. However, their relationship is unstable over time so that it exhibits regime changes. As a result, crude...

We consider a firm, which can choose between crude oil and natural gas to run its business. The firm selects the energy source, which minimizes its energy or production costs at a given time horizon. Assuming the energy strategy to be established over a fixed time window, the energy choice...