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In 2003 the federal-state Medicaid program provided prescription drug coverage to more than 50 million people. To determine the price that it will pay for each drug, Medicaid uses the average private sector price. When Medicaid is a large part of the demand for a drug, this creates an incentive for its maker to increase prices for other health care(More)
This paper describes the first scalable implementation of a text processing engine used in visual analytics tools. These tools aid information analysts in interacting with and understanding large textual information content through visual interfaces. By developing a parallel implementation of the text processing engine, we enabled visual analytics tools to(More)
We test for an effect of Arizona’s 2007 Legal Arizona Workers Act (LAWA) on the proportion of the state’s population characterized as noncitizen Hispanic. We use the synthetic control method to select a group of states against which Arizona’s population trends can be compared. We document a notable and statistically significant reduction in the proportion(More)
There is little consensus on the effects of immigration on crime. One potential explanation for the conflicting evidence is heterogeneity across space and time in policies toward immigrants that affect their status in the community and their incentives to engage in illegal activity. In this paper, we take advantage of provisions of the Immigration Reform(More)
Did the 2007 Legal Arizona Workers Act Reduce the State’s Unauthorized Immigrant Population? We test for an effect of Arizona’s 2007 Legal Arizona Workers Act (LAWA) on the proportion of the state population characterized as foreign-born, as non-citizen, and as non-citizen Hispanic. We use the synthetic control method to select a group of states against(More)
This paper provides a quantitative assessment of the economic contribution of unauthorized workers to the U.S. economy, and the potential gains from legalization. We employ a theoretical framework that allows for multiple industries and a heterogeneous workforce. Capital and labor are the inputs in production and the different types of labor are combined in(More)
Title of dissertation: TOPICS ON WAGE DIFFERENCES ACROSS LOCAL LABOR MARKETS Marios Michaelides, Doctor of Philosophy, 2007 Dissertation directed by: Professor Seth Sanders Department of Economics It is well established that average wages differ across local labor markets. Researchers have found that this is partially explained by differences of worker(More)