Antitrust and Competition in Health Care Markets

Gaynor, Martin; Vogt, William B.

doi:10.3386/w7112

Cited by 69 publications

(102 citation statements)

References 130 publications

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“…As Gaynor and Vogt (2000) and Gaynor and Town (2012) note, approaches to identifying market power for health care providers have varied considerably. Regression-based studies that relate changes in price to changes in market concentration have generally found a positive relationship between hospital market concentration and price, with effect sizes ranging from slightly negative to up to 17 % for an increase in the Herfindahl-Hirschman Index (HHI) of 1200 points (Gaynor and Vogt 2000). 1 Event-study approaches comparing merging hospitals to non-merging facilities from this same period have also found evidence of price increases for hospital mergers and acquisitions (Krishnan 2001;Vita and Sacher 2001).…”

Section: Previous Workmentioning

confidence: 98%

Market power and provider consolidation in physician markets

Kleiner

White

Lyons

2015

Int J Health Econ Manag.

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Physician services comprise a substantial share of total health care spending, and the price of health care services has been cited as a key contributor to the disproportionately high rate of health care spending in the US. However, despite a large literature analyzing market power in the hospital and insurance industries, less is known about the extent to which physicians exercise market power. In this study we make use of a private health insurance claims data set to analyze physician market power for two specialties within three mid-sized US metropolitan areas. Using a method developed for hospital competition analysis, we estimate measures of consumer willingness-to-pay for physician practices within each of these markets and relate these to the prices paid to these practices for a set of physician services. Our results are suggestive of the presence of market power in the markets that we analyze. We simulate physician practice mergers for the two largest practices in each market for each specialty analyzed. Results suggest that practice mergers could result in price increases deemed significant by antitrust authorities in some markets but not in others.

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Section: Previous Workmentioning

confidence: 98%

Market power and provider consolidation in physician markets

Kleiner

White

Lyons

2015

Int J Health Econ Manag.

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“…5 In practice, the Elzinga-Hogarty approach has been limited to antitrust cases and has not been widely used in empirical studies of aggregate hospital behavior. 6 Werden (1989) and Gaynor and Vogt (2000) provide more detailed discussions of the Elzinga-Hogarty approach. 5 For other reasons, the Elzinga-Hogarty approach may overstate the size of a hospital's market.…”

Section: Elzinga-hogartymentioning

confidence: 99%

“…In other versions of the Elzinga-Hogarty approach, a 25% cut-off level has been used. In the context of the hospital service industry, Elzinga-Hogarty markets are based on patient flows to and from hospital areas (Gaynor and Vogt, 2000).…”

Section: Elzinga-hogartymentioning

confidence: 99%

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Do Different Measures of Hospital Competition Matter in Empirical Investigations of Hospital Behavior

2005

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Considerable controversy exists about the appropriate way hospital competition should be measured and whether findings are accurate if certain methods are employed. Data from the Healthcare Cost and Utilization Project (HCUP), the American Hospital Association (AHA), and other supplemental data sources are used to create and evaluate hospital competition measures. Correlation coefficients of these measures are assessed. Moreover, each measure is independently included as an explanatory variable in otherwise identical hospital cost function regressions. Their corresponding parameter estimates are then compared. Most measures are highly correlated. Inferences about the effect of competition on hospital cost remain the same when alternative hospital competition measures are employed. We caution researchers against using this finding to arbitrarily select a competition measure when the magnitude of the estimates is important. Copyright Springer 2004hospital competition measures, hospital markets,

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“…Die moderne Industrieökonomie gewinnt für Fragestellungen im Gesundheitswesen zunehmend an Bedeutung [71] …”

Section: Industrieökonomie Und Gesundheitsökonomieunclassified

Fostering of health economics in Germany

Ulrich

2012

Bundesgesundheitsbl.

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Health economics is now well established in Germany with the aim to apply economic tools to answer problems in health and health care. After a short review of the international development of health economics and the development in Germany in particular, the article looks at selected recent topics of health economic analysis in Germany (economic evaluation, industrial economics, health and education).

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Antitrust and Competition in Health Care Markets

Cited by 69 publications

References 130 publications

Market power and provider consolidation in physician markets

Market power and provider consolidation in physician markets

Do Different Measures of Hospital Competition Matter in Empirical Investigations of Hospital Behavior

Fostering of health economics in Germany

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