A Review of the Experience of Massachusetts Workmen's Compensation Experience Rated Risks

Experience Rating Plans for Workmen’s Compensation insurance have been in effect in Massachusetts since 1916. Although these plans have varied considerably, the present Plan, which is the 1940 National Council Experience Rating Plan, has been in effect in Massachusetts since December 31, 1940 without substantial revision with respect to basic underlying principles. Inasmuch as this Plan has been in effect for a number of years, many concepts have developed, some of which stem more from underwriting usage than from statistical fact.