1{2 "record_id": "41c05e4c190bfd812f576bb4bc53a0c147331a7d",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "Accounting for Spatial Autocorrelation in Algorithm-Driven Hedonic Models: A Spatial Cross-Validation Approach",7 "year": 2022,8 "doi": "10.1007/s11146-022-09915-y",9 "country": "Germany",10 "region_city": "Frankfurt am Main",11 "sample_start": 2019,12 "sample_end": 2020,13 "property_type": "rental",14 "price_type": "rent",15 "data_source": "PATRIZIA AG / multiple listing systems, 9,256 apartment asking rents Jan 2019-Mar 2020",16 "document_type": "journal",17 "estimators": [18 "OLS"19 ],20 "spatial_method": "none in OLS appendix (coordinates as controls in Panel A); spatial lag/error and ML models used for prediction only",21 "time_fe": false,22 "location_fe": false,23 "se_type": "unknown",24 "n_obs_total": 9256,25 "ai_methods": [26 "random_forest",27 "gradient_boosting"28 ],29 "notes": "Main paper is about spatial cross-validation of random forest / XGBoost (prediction only, no marginal effects); only the appendix OLS (Table 6) gives coefficients. p-values printed to 2 decimals (0.00 means < 0.005). Significance codes: *** p<0.001, ** p<0.01, * p<0.05. 'Entry date [years]' (listing time trend) and latitude/longitude controls not extracted. n_obs assumed equal to the full sample of 9,256 (not printed in the table)."30 },31 "models": [32 {33 "model_id": "T6-A",34 "table": "6",35 "column": "Panel A",36 "page": 32,37 "dep_var": "log(rent) (monthly asking rent, EUR)",38 "dep_transform": "log",39 "estimator": "OLS",40 "n_obs": 9256,41 "r2": null,42 "se_or_t_in_parentheses": "se",43 "sample_subset": "OLS including spatial controls (coordinates, distances); SE/t/p printed in columns"44 },45 {46 "model_id": "T6-B",47 "table": "6",48 "column": "Panel B",49 "page": 32,50 "dep_var": "log(rent) (monthly asking rent, EUR)",51 "dep_transform": "log",52 "estimator": "OLS",53 "n_obs": 9256,54 "r2": null,55 "se_or_t_in_parentheses": "se",56 "sample_subset": "OLS excluding spatial controls; continued on page 33"57 }58 ],59 "coefficients": [60 {61 "model_id": "T6-A",62 "var_name_printed": "Living Area [log]",63 "taxonomy_id": "living_area",64 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"x_transform": "level",116 "x_unit": "count",117 "beta": 0.04,118 "se": 0.0,119 "t": 10.05,120 "p": 0.0,121 "p_stars": "***",122 "ci_lo": null,123 "ci_hi": null,124 "page": 32,125 "confidence": "high",126 "notes": "Number of rooms"127 },128 {129 "model_id": "T6-A",130 "var_name_printed": "Floor",131 "taxonomy_id": "floor_level",132 "x_transform": "level",133 "x_unit": "count",134 "beta": 0.0,135 "se": 0.0,136 "t": 5.29,137 "p": 0.0,138 "p_stars": "***",139 "ci_lo": null,140 "ci_hi": null,141 "page": 32,142 "confidence": "medium",143 "notes": "Printed as 0.00 (rounded)"144 },145 {146 "model_id": "T6-A",147 "var_name_printed": "Bathtub",148 "taxonomy_id": "bathroom_quality",149 "x_transform": "binary",150 "x_unit": "binary",151 "beta": -0.04,152 "se": 0.0,153 "t": -9.78,154 "p": 0.0,155 "p_stars": "***",156 "ci_lo": null,157 "ci_hi": null,158 "page": 32,159 "confidence": "high",160 "notes": ""161 },162 {163 "model_id": "T6-A",164 "var_name_printed": "Refurbished",165 "taxonomy_id": "renovation",166 "x_transform": "binary",167 "x_unit": "binary",168 "beta": 0.02,169 "se": 0.01,170 "t": 3.03,171 "p": 0.0,172 "p_stars": "**",173 "ci_lo": null,174 "ci_hi": null,175 "page": 32,176 "confidence": "high",177 "notes": ""178 },179 {180 "model_id": "T6-A",181 "var_name_printed": "Built-in kitchen",182 "taxonomy_id": "kitchen_quality",183 "x_transform": "binary",184 "x_unit": "binary",185 "beta": 0.11,186 "se": 0.01,187 "t": 21.65,188 "p": 0.0,189 "p_stars": "***",190 "ci_lo": null,191 "ci_hi": null,192 "page": 32,193 "confidence": "high",194 "notes": ""195 },196 {197 "model_id": "T6-A",198 "var_name_printed": "Balcony",199 "taxonomy_id": "terrace_balcony",200 "x_transform": "binary",201 "x_unit": "binary",202 "beta": 0.02,203 "se": 0.0,204 "t": 3.84,205 "p": 0.0,206 "p_stars": "***",207 "ci_lo": null,208 "ci_hi": null,209 "page": 32,210 "confidence": "high",211 "notes": ""212 },213 {214 "model_id": "T6-A",215 "var_name_printed": "Parking",216 "taxonomy_id": "parking",217 "x_transform": "binary",218 "x_unit": "binary",219 "beta": 0.03,220 "se": 0.01,221 "t": 4.88,222 "p": 0.0,223 "p_stars": "***",224 "ci_lo": null,225 "ci_hi": null,226 "page": 32,227 "confidence": "high",228 "notes": ""229 },230 {231 "model_id": "T6-A",232 "var_name_printed": "Elevator",233 "taxonomy_id": "accessibility",234 "x_transform": "binary",235 "x_unit": "binary",236 "beta": 0.04,237 "se": 0.01,238 "t": 7.64,239 "p": 0.0,240 "p_stars": "***",241 "ci_lo": null,242 "ci_hi": null,243 "page": 32,244 "confidence": "high",245 "notes": ""246 },247 {248 "model_id": "T6-A",249 "var_name_printed": "Terrace",250 "taxonomy_id": "terrace_balcony",251 "x_transform": "binary",252 "x_unit": "binary",253 "beta": 0.04,254 "se": 0.01,255 "t": 5.99,256 "p": 0.0,257 "p_stars": "***",258 "ci_lo": null,259 "ci_hi": null,260 "page": 32,261 "confidence": "high",262 "notes": ""263 },264 {265 "model_id": "T6-A",266 "var_name_printed": "NUTS centroid [km]",267 "taxonomy_id": "cbd_distance",268 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"taxonomy_id": "kitchen_quality",523 "x_transform": "binary",524 "x_unit": "binary",525 "beta": 0.15,526 "se": 0.01,527 "t": 26.57,528 "p": 0.0,529 "p_stars": "***",530 "ci_lo": null,531 "ci_hi": null,532 "page": 33,533 "confidence": "high",534 "notes": ""535 },536 {537 "model_id": "T6-B",538 "var_name_printed": "Balcony",539 "taxonomy_id": "terrace_balcony",540 "x_transform": "binary",541 "x_unit": "binary",542 "beta": 0.02,543 "se": 0.01,544 "t": 2.94,545 "p": 0.0,546 "p_stars": "**",547 "ci_lo": null,548 "ci_hi": null,549 "page": 33,550 "confidence": "high",551 "notes": ""552 },553 {554 "model_id": "T6-B",555 "var_name_printed": "Parking",556 "taxonomy_id": "parking",557 "x_transform": "binary",558 "x_unit": "binary",559 "beta": 0.01,560 "se": 0.01,561 "t": 1.52,562 "p": 0.13,563 "p_stars": "",564 "ci_lo": null,565 "ci_hi": null,566 "page": 33,567 "confidence": "high",568 "notes": ""569 },570 {571 "model_id": "T6-B",572 "var_name_printed": "Elevator",573 "taxonomy_id": 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