The Dynamics of Appraisal Smoothing
研究了NCREIF指数中评估平滑的动态变化，发现平滑程度随时间大幅波动，自1990年代中期以来显著增加，且受房价、不确定性和市场情绪影响。
We investigate the dynamics of appraisal smoothing in the National Council of Real Estate Investment Fiduciaries (NCREIF) index return using time‐varying asset pricing models. We find that smoothing is on average close to zero but varies substantially over time. From the inception of the NCREIF index in 1978 until the mid‐1990s, there was little evidence of smoothing. Smoothing has increased significantly since the mid‐1990s to the end of 2010. Smoothing increases when property prices or uncertainty increases. However, it decreases when sentiment in the property market is high or during recession periods. The substantial variation in the level of smoothing indicates that the volatility of unsmoothed appraisal‐based property returns would be significantly over‐ or under‐estimated for different periods if unsmoothed with a long‐run average smoothing.