A real estate analyst compares an appraisal-based real estate index to a transaction-based (repeat-sales) index over the same period. The appraisal-based index shows notably lower volatility and lower correlation with public equity markets. What most likely explains this difference?
- AAppraisal-based indices include only unlevered properties, which structurally have lower volatility than levered transactions
- BAppraisal-based indices use higher discount rates, which mechanically reduce reported volatility
- CTransaction-based indices systematically overstate volatility due to selection bias toward distressed sales
- DAppraisal-based indices experience valuation smoothing because appraisals are updated infrequently and rely partly on prior period values
Show answer & explanationAnswer & explanation
Correct answer: D. Appraisal-based indices experience valuation smoothing because appraisals are updated infrequently and rely partly on prior period values
Appraisal-based indices rely on periodic professional appraisals rather than actual transaction prices, and appraisers often anchor partly on previous valuations, creating a smoothing effect. This lagged, smoothed process understates true volatility and dampens measured correlation with more frequently priced markets like equities.
Why the other options are wrong
- A. Leverage status is unrelated to the appraisal-versus-transaction valuation methodology difference.
- B. Discount rate assumptions affect valuation levels, not directly the smoothing/volatility mechanism.
- C. Transaction-based indices are generally considered more accurate reflections of market volatility, not overstated.
Appraisal-Based Index Smoothing
Appraisal-based real estate indices tend to understate true volatility and correlation with other asset classes because appraisals are infrequent and appraisers partially anchor to prior valuations, smoothing reported returns.
- Smoothing biases volatility estimates downward
- Repeat-sales/transaction-based indices better reflect true market volatility
- This affects real estate's apparent diversification benefit in portfolio analysis
Memory trick: Appraisals lag reality — smoothing hides the true bumps.