We use two industry accepted and U.S Department of Labor endorsed metrics: 1) recordable injury rate (Occupational Safety and Health Administration [OHSA], 2017) and 2) the more sensitive, “near misses”.The OSHA recordable injury rate or incident rate is the number of recordable cases multiplied by 200,000 and then divided by the number of labor hours worked on the project. In order for an injury or illness to be recordable, it must be work-related. Moreover, a recordable injury under OSHA is one requiring medical treatment beyond first aid, as well as one that causes death, days away from work, restricted work or transfer to another job, or loss of consciousness. The recordable injury rate provides OSHA a standardized way to measure a company’s performance both historically and in comparison to other companies within its industry (OHSA, …show more content…
The Risk Exposure is a control variable measured as a fraction of the number of hours worked on duties of a high innate risk divided by the total number of hours worked on the project. We define high-risk projects as those where the exposure to hazards, risks, dangers, and injuries is inherently increased due to the nature of the duties performed by the majority employees on the project. For example, the injury risk exposure of craftsperson working at a construction site is higher than injury risk exposure of a professional web designer working from home. The “duties test” from the U.S. Fair Labor Standard Act (FLSA, 2017) categorizes employees as either craftsperson or professionals based on duties performed. Because the injury risk exposure of craftsperson employee is fundamentally higher than the injury risk exposure of a professional employee, we adopt the U.S. Fair Labor Standard Act (FLSA, 2017) as a credible proxy for differentiating a higher risk from a lower risk