David, Guy

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Now showing 1 - 3 of 3
  • Publication
    Side Effects of Competition: The Role of Advertising and Promotion in Pharmaceutical Markets
    (2011-06-01) David, Guy; Markowitz, Sara
    The extent of pharmaceutical advertising and promotion can be characterized by a balancing act between profitable demand expansions and potentially unfavorable subsequent regulatory actions. However, this balance also depends on the nature of competition (e.g. monopoly versus oligopoly). In this paper we model the firm’s behavior under different competitive scenarios and test the model’s predictions using a novel combination of sales, promotion, advertising, and adverse event reports data. We focus on the market for erectile dysfunction drugs as the basis for estimation. This market is ideal for analysis as it is characterized by an abrupt shift in structure, all drugs are branded, the drugs are associated with adverse health events, and have extensive advertising and promotion. We find that advertising and promotion expenditures increase own market share but also increase the share of adverse drug reactions. Competitors’ spending decreases market share, while also having an influence on adverse drug reactions.
  • Publication
    The Quality of Emergency Medical Services
    (2011-11-21) David, Guy; Harrington, Scott E
    Although Emergency Medical Services (EMS) is a crucial part of the health care system, there is relatively little research on the quality of those services. EMS agencies often measure their performance using criteria such as response time or total prehospital time. But larger scale studies that cross counties and providers are rare. This Issue Brief summarizes two studies that use comprehensive, longitudinal data from one state to assess the demographic, geographic, and professional factors that affect EMS performance.
  • Publication
    The Changing Geography of Outpatient Procedures
    (2011-03-29) David, Guy; Neuman, Mark D
    Since the early 80s, many surgical procedures have moved from the inpatient to outpatient setting. Outpatient surgical visits now account for about two-thirds of all surgical visits in the U.S. Over the same period, freestanding ambulatory surgery centers (ASCs) have arisen as alternatives to traditional hospital-based outpatient surgical departments. The number of ASCs grew from 240 in 1983 to 5,174 in 2008. The growth of ASCs raises safety concerns about the risk of complications and adequate access to emergency care. This Issue Brief summarizes evidence from one state about the changing geography of outpatient procedures and the possible risks associated with these changes.