From: Certificate of need laws: a systematic review and cost-effectiveness analysis
STUDY | DESIGN | STATES | YEARS | CONTROLS | KEY FINDINGS | NOTES |
---|---|---|---|---|---|---|
Zinn [29] | Cross-sectional | 50 | 1987 | Facility characteristics | Moratorium on building makes nursing home patients 7% more likely to be physically restrained, reduced RNs per patient 32% | Physical restraint increases 2.5 pp. from a 36% base; RNs per patient falls 1.3 pp. from a .04 base |
Ford and Kasserman [17] | Time series of cross sections | 50 | 1982–1989 | State characteristics | Both presence of CON and CON stringency have a significant negative impact on both entry of new firms and expansion of capacity in dialysis industry | No direct evidence on quality; authors show CON increases market concentration, then cite other work saying that concentration reduces quality |