We investigate causal processes linking environmental conditions, attitudes, and policies in the American states: Is public opinion about ecology shaped by environmental conditions? Are state policymakers responsive to environmental opinions? Does public opinion respond to policy adoption?...

The framers of the U.S. Constitution explicitly designed federalism to enhance representation. Because powers are divided among multiple governments, citizens are able to exert pressure on the elected officials of various governments in an effort to achieve desired outcomes. If one government is...

In addition to mobilizing supporters to vote, partisan campaigns use get-out-the-vote tactics as a means to boost support for their candidate. Although observational studies have attempted to estimate the effects of grassroots campaigning on political attitudes, they are unable to establish...

In recent years, social scientists have increasingly turned to matching as a method for drawing causal inferences from observational data. Matching compares those who receive a treatment to those with similar background attributes who do not receive a treatment. Researchers who use matching...

Empirical models of strategic games are central to much analysis in marketing and economics. However, two challenges in applying these models to real world data are that such models often admit multiple equilibria and that they require strong informational assumptions. The first implies that the...

This foreword and the subsequent four invited articles were commissioned by Eric T. Bradlow while Editor-in-Chief of <i>Marketing Science</i>. The foreword was written in four parts; each part covers a different aspect of the Workshop on Quantitative Marketing and Structural Econometrics. The workshop...

Commercial open source software (COSS) products--privately developed software based on publicly available source code--represent a rapidly growing, multibillion-dollar market. A unique aspect of competition in the COSS market is that many open source licenses require firms to make certain...

We estimate an equilibrium model of dynamic oligopoly with durable goods and endogenous innovation to examine the effect of competition on innovation in the personal computer microprocessor industry. Firms make dynamic pricing and investment decisions while consumers make dynamic upgrade...

As high-tech markets mature, replacement purchases inevitably become the dominant proportion of sales. Despite the clear importance of product replacement, little empirical work examines the separate roles of adoption and replacement. A consumer's replacement decision is dynamic and driven by...