“Industry Opposition to Government Regulation” provides a nice chart comparing the real price tags of environmental, safety, and health regulations to industry’s original estimation of their costs. Very clear, very succinct.
OMB Watch compiled this useful chart of the predicted costs of various federal regulations, including OSHA standards, and the actual costs (“The Going-Out-of-Business Myth”). It includes an “Ex Ante” and an “Ex Post” column. Very good for a quick look at the industry’s history of exaggeration.