Fewer insurers can improve competition.
Department of Health Services Management and Policy, George Washington University, Washington, DC.
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Greenberg
D003363:Cost Control; D004465:Economic Competition; D006291:Health Policy / Q000191:economics / Q000331:legislation & jurisprudence; D007343:Insurance Carriers; D007348:Insurance, Health / Q000191:economics* / Q000331:legislation & jurisprudence; D014481:United States