Elementary and secondary education policy making in the U.S. states is heavily influenced by the political bargaining of various actors, with teacher unions one of the most important actors. Yet previous studies that assess the impact of teacher unions on education reform use problematic measures of their direct political influence, instead opting for broader measures of membership or collective bargaining power. By contrast, the authors measure teacher union political activity by calculating the percentage of campaign contributions to candidates for state office that come from teacher unions. Using this measure, the authors find that increased teacher union political activity greatly reduces the chances that states enact reform-oriented education policies such as school choice and performance pay for teachers, while previous measures of teacher union strength bear little relationship to a state's adoption of these reform policies. These findings highlight the importance of paying careful attention to how political influence is operationalized in studies that assess the role organized interests play in shaping U.S. state policies.

Political campaigns are dynamic struggles between candidates to define the informational context for voters. Although much research describes how campaigns unfold or explores their effects on voters, less attention has been given to developing and testing a dynamic theory of candidate interaction during campaigns. In this study, the authors examine three different theories of candidate behavior, testing each using data on the TV advertisements aired in 23 gubernatorial elections held in 2002. The analysis examines both the total advertising efforts and the total negative advertising efforts of candidates in these races, differentiating between candidates based on partisanship, incumbency status, and whether they won or lost. The authors find support for all three theories, demonstrating their complementary nature and the value of analyzing campaigns as dynamic processes.

The authors use an informational-theoretical perspective to examine the appointment of legislative committees, using new measures of knowledge and expertise as well as a unique database. While competing theories (distributive and partisan) do not deny that legislative committees are a source of vital knowledge and expertise necessary for legislative policy making, information theory places the wisdom and expertise needs of collective decision making—that is, specialization—on very complex topics by legislative generalists as the raison d'être for a committee system. Thus, the authors investigate one of the fundamental arguments of information theory—that committees are formed to meet the basic knowledge and expertise needs of a legislative body. The findings from U.S. state legislative data indicate that significant member differences regarding prior knowledge and expertise exist by committee jurisdiction, state, and session, reinforcing the applicability of information theory while also suggesting the impact of setting and organizational factors. The authors also explore implications of these findings.

The authors examine the impact of political party control of government on the restrictiveness of a U.S. state's abortion policy, measured by the enactment of a parental involvement law. The empirical results show that (1) institutional control of a state's legislative and executive branches of government by the Republican Party increases the likelihood a state will enact a parental involvement law, while Democratic Party control decreases this likelihood; (2) the more conservative state public opinion is on abortion rights, the more likely a state is to enact a parental involvement law; (3) public anti-abortion attitudes do not act as a moderating force on the link between political party control and the enactment of a parental involvement law; and (4) the impact of political party control on the enactment of a parental involvement law has grown larger over time.

Many theories of policy diffusion contend that the flow of information is the driving force in the diffusion process. Prior scholarship has identified at least two types of information: information about policy and information about political viability. Few empirical approaches have been able to distinguish between these separate mechanisms. The authors argue that an analysis of policy proposals can untangle political information from policy-based information. They employ their strategy with data on the proposal of tax and expenditure limits (TELs) in the U.S. states since 1970 through direct democracy. The authors find that states in close geographic proximity to states that have rejected TELs are significantly less likely to propose TELs themselves. Since this event does not reveal information about policy effectiveness, the authors conclude that information about political viability systematically diffuses from state to state at the proposal stage of policy making.