Explanation

The earnings record best supports using a residual income model in this scenario because:

1. Earnings Smoothing: When companies smooth earnings, they manipulate reported earnings to appear more stable than the underlying economic reality. The residual income model is less affected by earnings smoothing because:

   • It focuses on economic earnings rather than accounting earnings
   • It incorporates the clean surplus relationship
   • It uses book value as an anchor

2. Residual Income Model Advantages:

   • More difficult to manipulate book value than earnings
   • Focuses on economic profitability (ROE vs. cost of equity)
   • Less sensitive to accounting distortions

3. Other Options:

   • Option B (variability of cash flows) would actually make the residual income model less reliable
   • Option C (low marginal cost of capital) is not a specific advantage of the residual income model

The residual income model is particularly useful when accounting earnings may be distorted, as it relies more on the fundamental relationship between book value and economic returns.