Which element is essential when evaluating risk treatment options using cost-benefit analysis?

Which element is essential when evaluating risk treatment options using cost-benefit analysis?

• A. Net benefit (expected risk reduction value minus the cost of controls).
• B. Total implementation cost only.
• C. Time to implement.
• D. Number of controls regardless of effectiveness.

Answer: (A)

In cost-benefit analysis for risk treatment, the key measure is the net benefit: the monetary value of the expected risk reduction minus the cost of the controls. This captures whether the investment in controls translates into a gain by reducing potential losses. If the net benefit is positive, the option adds value; if negative, it doesn’t justify the cost. Why this is the best choice: simply knowing how much the controls cost doesn’t tell you whether they’re worth it without comparing that cost to the value of the risk reduction. The expected risk reduction value reflects how much loss you avoid on average, while the costs reflect what you must pay to achieve that reduction. Only by subtracting costs from benefits do you obtain a clear, comparable measure to rank options. Time to implement and the number of controls matter, but only insofar as they influence the total costs and when benefits accrue. They don’t determine value by themselves if the benefits don’t outweigh the costs.

In cost-benefit analysis for risk treatment, the key measure is the net benefit: the monetary value of the expected risk reduction minus the cost of the controls. This captures whether the investment in controls translates into a gain by reducing potential losses. If the net benefit is positive, the option adds value; if negative, it doesn’t justify the cost.

Why this is the best choice: simply knowing how much the controls cost doesn’t tell you whether they’re worth it without comparing that cost to the value of the risk reduction. The expected risk reduction value reflects how much loss you avoid on average, while the costs reflect what you must pay to achieve that reduction. Only by subtracting costs from benefits do you obtain a clear, comparable measure to rank options.

Time to implement and the number of controls matter, but only insofar as they influence the total costs and when benefits accrue. They don’t determine value by themselves if the benefits don’t outweigh the costs.