1{2 "record_id": "ddfdca9d11843f81e9f91bacfe723acfa0d83bbb",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "Energy Retrofitting for the Modern Heritage Enhancement in Weak Real Estate Markets: The Olivetti Housing Stock in Ivrea",7 "year": 2022,8 "doi": "10.3390/su14063507",9 "country": "Italy",10 "region_city": "Ivrea and Eporediese area (31 surrounding municipalities), Piedmont",11 "sample_start": 2019,12 "sample_end": 2020,13 "property_type": "mixed",14 "price_type": "listing",15 "data_source": "Immobiliare.it listings 2019-2020: DS = 1154 ads (Eporediese area), SS = 248 ads (city of Ivrea)",16 "document_type": "journal",17 "estimators": [18 "spatial_error"19 ],20 "spatial_method": "Spatial Error Model (GeoDa), lambda 0.321 (DS) / 0.246 (SS)",21 "time_fe": false,22 "location_fe": false,23 "se_type": "unknown",24 "n_obs_total": 1154,25 "ai_methods": [],26 "notes": "Dependent variable log total listing price (EUR). Tables print Coefficient, Std.Error, z-Value, Probability (t field holds the z-value). Variables selected by forward stepwise. Two misprints flagged (BN coefficient; HD and UD standard errors). SS is a subsample of DS."27 },28 "models": [29 {30 "model_id": "T4-DS",31 "table": "4",32 "column": "Coefficient",33 "page": 15,34 "dep_var": "log total listing price (logTLP), EUR",35 "dep_transform": "log",36 "estimator": "spatial_error",37 "n_obs": 1154,38 "r2": 0.664,39 "se_or_t_in_parentheses": "se",40 "sample_subset": "DS: Ivrea + 31 municipalities of the Eporediese area"41 },42 {43 "model_id": "T5-SS",44 "table": "5",45 "column": "Coefficient",46 "page": 16,47 "dep_var": "log total listing price (logTLP), EUR",48 "dep_transform": "log",49 "estimator": "spatial_error",50 "n_obs": 248,51 "r2": 0.62,52 "se_or_t_in_parentheses": "se",53 "sample_subset": "SS: city of Ivrea only"54 }55 ],56 "coefficients": [57 {58 "model_id": "T4-DS",59 "var_name_printed": "PT (Villa)",60 "taxonomy_id": "dwelling_type",61 "x_transform": "dummy",62 "x_unit": "binary",63 "beta": 0.381,64 "se": 0.038,65 "t": 9.903,66 "p": 0.0,67 "p_stars": "",68 "ci_lo": null,69 "ci_hi": null,70 "page": 15,71 "confidence": "high",72 "notes": "Villa vs other property types (condominium, detached); z-value column"73 },74 {75 "model_id": "T4-DS",76 "var_name_printed": "BC (Building Class-Economic)",77 "taxonomy_id": "condition",78 "x_transform": "dummy",79 "x_unit": "binary",80 "beta": -0.114,81 "se": 0.035,82 "t": -3.281,83 "p": 0.001,84 "p_stars": "",85 "ci_lo": null,86 "ci_hi": null,87 "page": 15,88 "confidence": "high",89 "notes": "Building category dummy (economic/medium/noble; Italian cadastral building class)"90 },91 {92 "model_id": "T4-DS",93 "var_name_printed": "BC (Building Class-Medium)",94 "taxonomy_id": "condition",95 "x_transform": "dummy",96 "x_unit": "binary",97 "beta": -0.065,98 "se": 0.031,99 "t": -2.079,100 "p": 0.037,101 "p_stars": "",102 "ci_lo": null,103 "ci_hi": null,104 "page": 15,105 "confidence": "high",106 "notes": "Building category dummy"107 },108 {109 "model_id": "T4-DS",110 "var_name_printed": "BC (Building Class-Noble)",111 "taxonomy_id": "condition",112 "x_transform": "dummy",113 "x_unit": "binary",114 "beta": 0.135,115 "se": 0.047,116 "t": 2.862,117 "p": 0.004,118 "p_stars": "",119 "ci_lo": null,120 "ci_hi": null,121 "page": 15,122 "confidence": "high",123 "notes": "Building category dummy"124 },125 {126 "model_id": "T4-DS",127 "var_name_printed": "FA (Floor area)",128 "taxonomy_id": "living_area",129 "x_transform": "level",130 "x_unit": "m2",131 "beta": 0.004,132 "se": 0.001,133 "t": 22.816,134 "p": 0.0,135 "p_stars": "",136 "ci_lo": null,137 "ci_hi": null,138 "page": 15,139 "confidence": "high",140 "notes": "Floor area, m2 (mean 139)"141 },142 {143 "model_id": "T4-DS",144 "var_name_printed": "TR (Terrace)",145 "taxonomy_id": "terrace_balcony",146 "x_transform": "binary",147 "x_unit": "binary",148 "beta": 0.105,149 "se": 0.025,150 "t": 4.126,151 "p": 0.0,152 "p_stars": "",153 "ci_lo": null,154 "ci_hi": null,155 "page": 15,156 "confidence": "high",157 "notes": ""158 },159 {160 "model_id": "T4-DS",161 "var_name_printed": "US (Unit Status-Partially renovated)",162 "taxonomy_id": "renovation",163 "x_transform": "dummy",164 "x_unit": "binary",165 "beta": 0.271,166 "se": 0.038,167 "t": 7.105,168 "p": 0.0,169 "p_stars": "",170 "ci_lo": null,171 "ci_hi": null,172 "page": 15,173 "confidence": "high",174 "notes": "Unit status dummy, ref. not renovated"175 },176 {177 "model_id": "T4-DS",178 "var_name_printed": "US (Unit Status-Renovated)",179 "taxonomy_id": "renovation",180 "x_transform": "dummy",181 "x_unit": "binary",182 "beta": 0.466,183 "se": 0.042,184 "t": 10.962,185 "p": 0.0,186 "p_stars": "",187 "ci_lo": null,188 "ci_hi": null,189 "page": 15,190 "confidence": "high",191 "notes": "Unit status dummy, ref. not renovated"192 },193 {194 "model_id": "T4-DS",195 "var_name_printed": "EPC (Energy Performance Certification -B and over)",196 "taxonomy_id": "energy_efficiency",197 "x_transform": "dummy",198 "x_unit": "binary",199 "beta": 0.162,200 "se": 0.066,201 "t": 2.45,202 "p": 0.014,203 "p_stars": "",204 "ci_lo": null,205 "ci_hi": null,206 "page": 15,207 "confidence": "high",208 "notes": "EPC class B or better dummy"209 },210 {211 "model_id": "T4-DS",212 "var_name_printed": "HT (Heating Type-independent)",213 "taxonomy_id": "heating",214 "x_transform": "dummy",215 "x_unit": "binary",216 "beta": 0.106,217 "se": 0.021,218 "t": 5.013,219 "p": 0.0,220 "p_stars": "",221 "ci_lo": null,222 "ci_hi": null,223 "page": 15,224 "confidence": "high",225 "notes": "Independent (autonomous) heating vs central"226 },227 {228 "model_id": "T4-DS",229 "var_name_printed": "E (Elevator)",230 "taxonomy_id": "accessibility",231 "x_transform": "binary",232 "x_unit": "binary",233 "beta": 0.101,234 "se": 0.033,235 "t": 3.054,236 "p": 0.002,237 "p_stars": "",238 "ci_lo": null,239 "ci_hi": null,240 "page": 15,241 "confidence": "high",242 "notes": ""243 },244 {245 "model_id": "T4-DS",246 "var_name_printed": "BN (Bathrooms number)",247 "taxonomy_id": "bathrooms",248 "x_transform": "level",249 "x_unit": "count",250 "beta": 0.958,251 "se": 0.017,252 "t": 5.728,253 "p": 0.0,254 "p_stars": "",255 "ci_lo": null,256 "ci_hi": null,257 "page": 15,258 "confidence": "medium",259 "notes": "Printed coefficient 0.958 with SE 0.017 is inconsistent with printed z=5.728 (implies beta ~0.098); probable misprint, recorded as printed"260 },261 {262 "model_id": "T4-DS",263 "var_name_printed": "HD (Distance from the nearest highway exit)",264 "taxonomy_id": "highway_distance",265 "x_transform": "level",266 "x_unit": "m",267 "beta": -1.42e-05,268 "se": 5.628e-05,269 "t": -2.517,270 "p": 0.011,271 "p_stars": "",272 "ci_lo": null,273 "ci_hi": null,274 "page": 15,275 "confidence": "medium",276 "notes": "Distance unit not stated; sample mean 6151 implies metres. Printed SE 5.628e-05 inconsistent with z=-2.517 (implies SE 5.6e-06); recorded as printed"277 },278 {279 "model_id": "T4-DS",280 "var_name_printed": "RE (Retail services)",281 "taxonomy_id": "commercial_distance",282 "x_transform": "other",283 "x_unit": "index",284 "beta": 0.248,285 "se": 0.083,286 "t": 2.98,287 "p": 0.002,288 "p_stars": "",289 "ci_lo": null,290 "ci_hi": null,291 "page": 15,292 "confidence": "high",293 "notes": "Retail services indicator (numeric, mean 0.21; presence/density of retail services, not a distance)"294 },295 {296 "model_id": "T5-SS",297 "var_name_printed": "BC (Building Class-Noble)",298 "taxonomy_id": "condition",299 "x_transform": "dummy",300 "x_unit": "binary",301 "beta": 0.35,302 "se": 0.078,303 "t": 4.454,304 "p": 0.0,305 "p_stars": "",306 "ci_lo": null,307 "ci_hi": null,308 "page": 16,309 "confidence": "high",310 "notes": "Building category dummy"311 },312 {313 "model_id": "T5-SS",314 "var_name_printed": "FA",315 "taxonomy_id": "living_area",316 "x_transform": "level",317 "x_unit": "m2",318 "beta": 0.005,319 "se": 0.001,320 "t": 12.813,321 "p": 0.0,322 "p_stars": "",323 "ci_lo": null,324 "ci_hi": null,325 "page": 16,326 "confidence": "high",327 "notes": "Floor area, m2 (mean 112)"328 },329 {330 "model_id": "T5-SS",331 "var_name_printed": "US1 (Unit Status-Partially renovated)",332 "taxonomy_id": "renovation",333 "x_transform": "dummy",334 "x_unit": "binary",335 "beta": 0.237,336 "se": 0.073,337 "t": 3.248,338 "p": 0.001,339 "p_stars": "",340 "ci_lo": null,341 "ci_hi": null,342 "page": 16,343 "confidence": "high",344 "notes": "ref. not renovated"345 },346 {347 "model_id": "T5-SS",348 "var_name_printed": "US2 (Unit Status-Renovated)",349 "taxonomy_id": "renovation",350 "x_transform": "dummy",351 "x_unit": "binary",352 "beta": 0.398,353 "se": 0.085,354 "t": 4.68,355 "p": 0.0,356 "p_stars": "",357 "ci_lo": null,358 "ci_hi": null,359 "page": 16,360 "confidence": "high",361 "notes": "ref. not renovated"362 },363 {364 "model_id": "T5-SS",365 "var_name_printed": "HT (Heating Type-independent)",366 "taxonomy_id": "heating",367 "x_transform": "dummy",368 "x_unit": "binary",369 "beta": 0.135,370 "se": 0.046,371 "t": 2.933,372 "p": 0.003,373 "p_stars": "",374 "ci_lo": null,375 "ci_hi": null,376 "page": 16,377 "confidence": "high",378 "notes": ""379 },380 {381 "model_id": "T5-SS",382 "var_name_printed": "PG (Private Garden)",383 "taxonomy_id": "garden",384 "x_transform": "binary",385 "x_unit": "binary",386 "beta": 0.152,387 "se": 0.065,388 "t": 2.343,389 "p": 0.019,390 "p_stars": "",391 "ci_lo": null,392 "ci_hi": null,393 "page": 16,394 "confidence": "high",395 "notes": ""396 },397 {398 "model_id": "T5-SS",399 "var_name_printed": "OL (Building Olivettian Connotation)",400 "taxonomy_id": "other",401 "x_transform": "binary",402 "x_unit": "binary",403 "beta": -0.174,404 "se": 0.066,405 "t": -2.658,406 "p": 0.008,407 "p_stars": "",408 "ci_lo": null,409 "ci_hi": null,410 "page": 16,411 "confidence": "high",412 "notes": "Modern-heritage (Olivetti company) architectural connotation dummy"413 },414 {415 "model_id": "T5-SS",416 "var_name_printed": "UD (Distance from the UNESCO site)",417 "taxonomy_id": "other",418 "x_transform": "level",419 "x_unit": "m",420 "beta": -9.921e-05,421 "se": 3.49e-05,422 "t": -2.845,423 "p": 0.004,424 "p_stars": "",425 "ci_lo": null,426 "ci_hi": null,427 "page": 16,428 "confidence": "medium",429 "notes": "Distance to centre of UNESCO site 'Ivrea, industrial city of the 20th century'; unit not stated, mean 1520 implies metres; SE printed as '-3.49e-05' (sign misprint), consistent with z"430 },431 {432 "model_id": "T5-SS",433 "var_name_printed": "EPC (Energy Performance Certification-B and over)",434 "taxonomy_id": "energy_efficiency",435 "x_transform": "dummy",436 "x_unit": "binary",437 "beta": 0.311,438 "se": 0.14,439 "t": 2.219,440 "p": 0.027,441 "p_stars": "",442 "ci_lo": null,443 "ci_hi": null,444 "page": 16,445 "confidence": "high",446 "notes": ""447 }448 ]449}