abstract: This dissertation contains a portfolio of papers in economics. The first paper, ``Vehicle Emissions Inspection Programs: Equality and Impact," presents the results of a study of the Arizona Vehicle Emissions Inspection Program. Using a unique data set, I find that the Arizona Vehicle Emissions Inspection Program is regressive in that it constrains the vehicle repair decisions of people on the low end of the income distribution more than those on the high end. I also find that the social cost of the program in Arizona is more than twice the social benefit, assuming a \$7 million value of statistical life. The second paper is ``Fiat Value in the Theory of Value." Because of advances in information processing technology, it is now te...