The dissertation is composed of three chapters that focus on electricity industry in the U.S.The first chapter examines the impact of Incentive Regulation (IR) or Performance-Based Regulation (PBR) of electric distribution utilities on price differentials between customer classes. Consumers in the electricity industry and many other public utility industries alike are often divided into different groups, to which different tariffs are applied. Regulatory constraint could affect utilities' pricing incentives. Therefore, this chapter aims to empirically examine whether and how price differentials between customer classes have changed as a result of the adoption of PBR.This empirical study explores a balanced panel dataset comprised of 87 distribution utilities dur- The results of this chapter provide additional empirical reference on the impact of PBR.The second chapter studies the impact of deregulation on labor earnings in the electricity industry in the United States. General agreement exists that deregulation in product market affects not only the product market itself but also the labor market, as stepped-up competition in the product market can easily place greater pressures on labor expenses. While extensive studies have been conducted to examine the impacts of deregulation on rates, efficiency, investment, etc., the impacts on labor market are relatively less known. Therefore, my goal in this study is to provide some empirical reference on the impact of product market deregulation on hourly wages in the background of electricity industry in the United States. The empirical analysis is based on earnings data from