title: Impact of HMO mergers and acquisitions on financial performance.
abstract: This study examines the effect of health maintenance organization (HMO) mergers and acquisitions on financial performance, as indicated by cash flow returns, profitability ratios, and efficiency indicators. Pooled, cross-sectional files of financial performance data were created for HMO mergers occurring in the period of 1988 to 1994. The study uses a time-series design involving the analysis of pre- and post-acquisition financial performance measured over a period of four years. Change scores for the industry-adjusted financial performance measures were calculated and then evaluated using t-tests. The study showed that HMO mergers had a positive effect on financial performance and efficiency. This effect disappeared, however, after adjusting for HMO industry returns. Potential synergies arising from HMO mergers have been largely illusory. Mergers may have been a result of non-value enhancing motives or management overconfidence.
authors.affiliation: Center for Health Policy Research, The Pennsylvania State University, USA.
authors.forename: Robert
authors.initials: R
authors.lastname: Weech-Maldonado
mesh_terms: D000066:Accounting; D003430:Cross-Sectional Studies; D004465:Economic Competition; D017598:Efficiency, Organizational / Q000191:economics / Q000706:statistics & numerical data*; D005249:Fees and Charges; D005376:Financial Management / Q000706:statistics & numerical data / Q000639:trends*; D019981:Health Care Sector; D006273:Health Facility Merger / Q000191:economics* / Q000639:trends; D006279:Health Maintenance Organizations / Q000191:economics / Q000458:organization & administration*; D006302:Health Services Research; D007182:Income / Q000706:statistics & numerical data* / Q000639:trends; D017059:Models, Econometric; D014481:United States