1\begin{tabular}{llrrrrrl}2\toprule3Characteristic & family & $k$ & $n$ & pooled & 95\% CI & 95\% PI & Sirmans et al.\ (2006) finding \\4\midrule5square footage & \% per unit & 50 & 353 & 0.72 & [0.65, 0.78] & [-0.51, 1.94] & positive; varies by location \\6square footage & elasticity & 46 & 234 & 0.65 & [0.61, 0.69] & [0.09, 1.21] & extquotedbl \\7lot size & \% per unit & 22 & 165 & 0.01 & [0.01, 0.02] & [-0.02, 0.05] & positive; varies by location; smaller when sq ft controlled \\8lot size & elasticity & 23 & 114 & 0.09 & [0.05, 0.12] & [-0.30, 0.47] & extquotedbl \\9age & \% premium & 13 & 162 & 2.22 & [0.82, 3.62] & [-14.78, 19.21] & negative; varies by location \\10age & \% per unit & 54 & 259 & -0.24 & [-0.43, -0.05] & [-3.19, 2.71] & extquotedbl \\11age & elasticity & 18 & 93 & -0.09 & [-0.11, -0.07] & [-0.27, 0.09] & extquotedbl \\12bedrooms & \% premium & 8 & 65 & 12.12 & [7.84, 16.40] & [-21.60, 45.84] & mixed sign \\13bedrooms & \% per unit & 60 & 316 & 3.00 & [2.21, 3.79] & [-10.79, 16.79] & extquotedbl \\14bedrooms & elasticity & 12 & 40 & 0.19 & [0.11, 0.27] & [-0.29, 0.67] & extquotedbl \\15bathrooms & \% premium & 7 & 47 & 23.84 & [17.30, 30.37] & [-20.25, 67.93] & positive; varies by location and data type \\16bathrooms & \% per unit & 51 & 381 & 5.91 & [5.27, 6.54] & [-5.63, 17.44] & extquotedbl \\17bathrooms & elasticity & 6 & 32 & 0.07 & [0.04, 0.10] & [-0.10, 0.25] & extquotedbl \\18garage & \% premium & 22 & 134 & 5.43 & [4.31, 6.54] & [-6.94, 17.80] & positive \\19pool & \% premium & 18 & 77 & 4.87 & [2.28, 7.45] & [-16.37, 26.11] & positive; varies by location \\20fireplace & \% premium & 10 & 134 & 4.35 & [3.73, 4.96] & [-2.01, 10.70] & positive \\21air conditioning & \% premium & 11 & 55 & 10.81 & [7.74, 13.88] & [-11.57, 33.20] & positive; varies by location \\22\bottomrule23\end{tabular}24