This thesis focuses on the issue of occupational injuries. There are four different explanations of why accident rates vary. A set of research hypotheses were created based on these explanations. Multivariate regression analyses of aggregate secondary data were used to test four hypotheses. The findings of these analyses indicate that establishment size, unionization rates and strike and lockout rates are related to injury rates but earnings are not. A fifth hypothesis was tested using the mining industry of Ontario as a case study. This analysis indicates that safety-related legislative and regulatory changes were not effective in reducing either fatal injuries or non-fatal injuries.

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