ECONOMIC-EFFECTS OF WORKERS COMPENSATION IN THE UNITED-STATES - PRIVATE INSURANCE AND THE ADMINISTRATION OF COMPENSATION CLAIMS - EFFICIENCY EFFECTS OF PREMIUM-SETTING REGIMES UNDER WORKERS COMPENSATION - CANADA AND THE UNITED-STATES - UNEMPLOYMENT-INSURANCE IN THE UNITED-STATES- LAYOFF INCENTIVES AND CROSS SUBSIDIES - THE ECONOMIC-EFFECTS OF UNEMPLOYMENT-INSURANCE IN CANADA - AN EMPIRICAL-ANALYSIS OF UI DISENTITLEMENT - COMMENTS