chapter 9 economic impact analysis this presents the impacts on markets of various vehicle categories affected by emissions control program each category vehicles is modeled separately however structure model used to estimate essentially same first section provides a summary results for rule next we provide general description theory market then discuss concept fuel efficiency gains resulting from and how they have been incorporated into also addressed potential product attribute changes that may result due regulation followed methodology develop supply demand elasticity estimates remainder takes in turn describes baseline characterization per costs future years which are expected be incurred generated excluding