Spatial interaction, spatial multipliers and hospital competition

Lee R. Mobley, H. E. Frech, Luc Anselin

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The hospital competition literature shows that estimates of the effect of local market structure (concentration) on pricing (competition) are sensitive to geographic market definition. Our spatial lag model approach effects smoothing of the explanatory variables across the discrete market boundaries, resulting in robust estimates of the impact of market structure on hospital pricing, which can be used to estimate the full effect of changes in prices inclusive of spillovers that cascade through the neighboring hospital markets. The full amount, generated by the spatial multiplier effect, is a robust estimate of the impacts of market factors on hospital competition. We contrast ordinary least squares and spatial lag estimates to demonstrate the importance of robust estimation in analysis of hospital market competition. In markets where concentration is relatively high before a proposed merger, we demonstrate that Ordinary Least Squares (OLS) can lead to the wrong policy conclusion while the more conservative lag estimates do not.

Original languageEnglish (US)
Pages (from-to)1-17
Number of pages17
JournalInternational Journal of the Economics of Business
Volume16
Issue number1
DOIs
StatePublished - Feb 2009

Fingerprint

Spatial interaction
Hospital competition
Multiplier
Market structure
Ordinary least squares
Spatial lag
Pricing
Lag
Mergers
Robust estimation
Cascade
Market concentration
Spillover
Market definition
Market factors
Smoothing
Local markets
Market competition

Keywords

  • Hospital competition
  • Market boundary
  • Market extent
  • Market size
  • Spatial econometrics

ASJC Scopus subject areas

  • Economics and Econometrics
  • Business, Management and Accounting (miscellaneous)

Cite this

Spatial interaction, spatial multipliers and hospital competition. / Mobley, Lee R.; Frech, H. E.; Anselin, Luc.

In: International Journal of the Economics of Business, Vol. 16, No. 1, 02.2009, p. 1-17.

Research output: Contribution to journalArticle

Mobley, Lee R. ; Frech, H. E. ; Anselin, Luc. / Spatial interaction, spatial multipliers and hospital competition. In: International Journal of the Economics of Business. 2009 ; Vol. 16, No. 1. pp. 1-17.
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