People want more from the government. One thing they want more of is a sense of personal safety, at home and at work (Regulation, Fall 1991). People also want the government to quit wasting money. The objective of having the government provide a safer life for us and our children at minimum cost leads logically to looking at policy within the system involving the private sector plus governments at the federal and sub federal levels. Using numerical simulations our book takes an integrated quantitative look at how the various institutions influencing workplace safety lead to the observed levels of illnesses and injuries among U.S. workers. Our innovation is piecing together the mosaic of interactions among workers, employers, state government, and the federal government that is numerically realistic in the sense of using economists' current knowl­ edge of quantitative connections. Our objective has been to write a Gray's Anatomy, if you will, of how the U.S. economic system, as tempered by government policy, jointly determines employment patterns, wages, and workplace safety levels.