Despite their importance in pricing futures and other derivative contracts, seasonalvariations in mean and variance of energy prices have not been fully captured inprevious studies of energy prices. We examine the volatility dynamics of daily naturalgas futures traded on the NYMEX via the...

Cosmetic defects such as 'hollows' are the result of deviations in a skin panel. These deviations are usually too small and local to be detected by discrete measurements of the panel but become visually apparent after the application of paint. As a result, the perceived quality of a panel may...