1{2 "record_id": "942f0ff361a49b68c1333c31381f78c02a3d0937",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "How different are dwellings whose energy efficiency impacts price formation?",7 "year": 2019,8 "doi": "10.1088/1757-899x/603/4/042015",9 "country": "Spain",10 "region_city": "Barcelona Metropolitan Area (164 municipalities)",11 "sample_start": 2014,12 "sample_end": 2016,13 "property_type": "condo_apartment",14 "price_type": "listing",15 "data_source": "Habitaclia listing portal (asking prices, Nov 2014 and Apr 2016 snapshots), 2001 Census, 2013 Cadastre, Mobility Survey",16 "document_type": "conference",17 "estimators": [18 "spatial_error"19 ],20 "spatial_method": "spatial error model, ML, rook contiguity weights (GeoDa)",21 "time_fe": true,22 "location_fe": false,23 "se_type": "unknown",24 "n_obs_total": 6492,25 "ai_methods": [],26 "notes": "Pooled 2014+2016 sample (3,246 apartments each). Dependent variable ln(asking price, EUR). Table 2 reports B, Std. Error, Z-value and Prob; '-' in Prob column means p<0.000; no stars. Lambda = 0.462. Stepwise variable selection (bedrooms, terrace, garden etc. dropped). Year 2016 dummy (0.041) not extracted. EPC interactions with year 2016 recorded with x_transform 'other'."27 },28 "models": [29 {30 "model_id": "T2-SEM",31 "table": "2",32 "column": "1",33 "page": 7,34 "dep_var": "ln(asking price, EUR)",35 "dep_transform": "log",36 "estimator": "spatial_error",37 "n_obs": 6492,38 "r2": 0.764,39 "se_or_t_in_parentheses": "se",40 "sample_subset": "Pooled 2014 and 2016 listings, spatial error ML; z-values and p-values in separate columns"41 }42 ],43 "coefficients": [44 {45 "model_id": "T2-SEM",46 "var_name_printed": "Area",47 "taxonomy_id": "living_area",48 "x_transform": "level",49 "x_unit": "m2",50 "beta": 0.015,51 "se": null,52 "t": 37.546,53 "p": null,54 "p_stars": "",55 "ci_lo": null,56 "ci_hi": null,57 "page": 7,58 "confidence": "high",59 "notes": "Area in m2; SE printed 0.000 (rounded); p printed '-' meaning <0.000; SE printed as 0.000 (rounded), stored as null; use z-value"60 },61 {62 "model_id": "T2-SEM",63 "var_name_printed": "Area^2",64 "taxonomy_id": "living_area",65 "x_transform": "squared",66 "x_unit": "m2",67 "beta": -0.0,68 "se": null,69 "t": -19.709,70 "p": null,71 "p_stars": "",72 "ci_lo": null,73 "ci_hi": null,74 "page": 7,75 "confidence": "medium",76 "notes": "Quadratic area term printed as -0.000 (rounded); SE 0.000; SE printed as 0.000 (rounded), stored as null; use z-value"77 },78 {79 "model_id": "T2-SEM",80 "var_name_printed": "Number of bathrooms",81 "taxonomy_id": "bathrooms",82 "x_transform": "level",83 "x_unit": "count",84 "beta": 0.098,85 "se": 0.008,86 "t": 11.842,87 "p": null,88 "p_stars": "",89 "ci_lo": null,90 "ci_hi": null,91 "page": 7,92 "confidence": "high",93 "notes": "p printed '-' (<0.000)"94 },95 {96 "model_id": "T2-SEM",97 "var_name_printed": "Air conditioner",98 "taxonomy_id": "air_conditioning",99 "x_transform": "dummy",100 "x_unit": "binary",101 "beta": 0.074,102 "se": 0.008,103 "t": 8.905,104 "p": null,105 "p_stars": "",106 "ci_lo": null,107 "ci_hi": null,108 "page": 7,109 "confidence": "high",110 "notes": "p printed '-' (<0.000)"111 },112 {113 "model_id": "T2-SEM",114 "var_name_printed": "Central heating",115 "taxonomy_id": "heating",116 "x_transform": "dummy",117 "x_unit": "binary",118 "beta": 0.041,119 "se": 0.009,120 "t": 4.686,121 "p": null,122 "p_stars": "",123 "ci_lo": null,124 "ci_hi": null,125 "page": 7,126 "confidence": "high",127 "notes": "p printed '-' (<0.000)"128 },129 {130 "model_id": "T2-SEM",131 "var_name_printed": "Retrofitted apartment",132 "taxonomy_id": "renovation",133 "x_transform": "dummy",134 "x_unit": "binary",135 "beta": 0.034,136 "se": 0.01,137 "t": 3.437,138 "p": 0.001,139 "p_stars": "",140 "ci_lo": null,141 "ci_hi": null,142 "page": 7,143 "confidence": "high",144 "notes": ""145 },146 {147 "model_id": "T2-SEM",148 "var_name_printed": "Swimming pool",149 "taxonomy_id": "pool",150 "x_transform": "dummy",151 "x_unit": "binary",152 "beta": 0.186,153 "se": 0.015,154 "t": 11.976,155 "p": null,156 "p_stars": "",157 "ci_lo": null,158 "ci_hi": null,159 "page": 7,160 "confidence": "high",161 "notes": "p printed '-' (<0.000)"162 },163 {164 "model_id": "T2-SEM",165 "var_name_printed": "Lift",166 "taxonomy_id": "accessibility",167 "x_transform": "dummy",168 "x_unit": "binary",169 "beta": 0.089,170 "se": 0.008,171 "t": 10.452,172 "p": null,173 "p_stars": "",174 "ci_lo": null,175 "ci_hi": null,176 "page": 7,177 "confidence": "high",178 "notes": "p printed '-' (<0.000)"179 },180 {181 "model_id": "T2-SEM",182 "var_name_printed": "Inverse of building age",183 "taxonomy_id": "age",184 "x_transform": "other",185 "x_unit": "years",186 "beta": 0.238,187 "se": 0.045,188 "t": 5.34,189 "p": null,190 "p_stars": "",191 "ci_lo": null,192 "ci_hi": null,193 "page": 7,194 "confidence": "high",195 "notes": "Regressor is 1/(building age in years); p printed '-' (<0.000)"196 },197 {198 "model_id": "T2-SEM",199 "var_name_printed": "Energy class A",200 "taxonomy_id": "energy_efficiency",201 "x_transform": "dummy",202 "x_unit": "binary",203 "beta": 0.086,204 "se": 0.034,205 "t": 2.492,206 "p": 0.013,207 "p_stars": "",208 "ci_lo": null,209 "ci_hi": null,210 "page": 7,211 "confidence": "high",212 "notes": "EPC class A vs reference G (2014 baseline; year-2016 interactions separate)"213 },214 {215 "model_id": "T2-SEM",216 "var_name_printed": "Energy class C",217 "taxonomy_id": "energy_efficiency",218 "x_transform": "dummy",219 "x_unit": "binary",220 "beta": -0.011,221 "se": 0.029,222 "t": -0.375,223 "p": 0.708,224 "p_stars": "",225 "ci_lo": null,226 "ci_hi": null,227 "page": 7,228 "confidence": "high",229 "notes": "EPC class C vs G (2014 baseline); class B absent in 2014"230 },231 {232 "model_id": "T2-SEM",233 "var_name_printed": "Energy class D",234 "taxonomy_id": "energy_efficiency",235 "x_transform": "dummy",236 "x_unit": "binary",237 "beta": 0.0,238 "se": 0.019,239 "t": 0.02,240 "p": 0.984,241 "p_stars": "",242 "ci_lo": null,243 "ci_hi": null,244 "page": 7,245 "confidence": "high",246 "notes": "EPC class D vs G (2014 baseline)"247 },248 {249 "model_id": "T2-SEM",250 "var_name_printed": "Energy class E",251 "taxonomy_id": "energy_efficiency",252 "x_transform": "dummy",253 "x_unit": "binary",254 "beta": 0.007,255 "se": 0.013,256 "t": 0.572,257 "p": 0.567,258 "p_stars": "",259 "ci_lo": null,260 "ci_hi": null,261 "page": 7,262 "confidence": "high",263 "notes": "EPC class E vs G (2014 baseline)"264 },265 {266 "model_id": "T2-SEM",267 "var_name_printed": "Energy class F",268 "taxonomy_id": "energy_efficiency",269 "x_transform": "dummy",270 "x_unit": "binary",271 "beta": 0.019,272 "se": 0.016,273 "t": 1.132,274 "p": 0.258,275 "p_stars": "",276 "ci_lo": null,277 "ci_hi": null,278 "page": 7,279 "confidence": "high",280 "notes": "EPC class F vs G (2014 baseline)"281 },282 {283 "model_id": "T2-SEM",284 "var_name_printed": "Energy class A * Year 2016",285 "taxonomy_id": "energy_efficiency",286 "x_transform": "other",287 "x_unit": "binary",288 "beta": 0.067,289 "se": 0.044,290 "t": 1.515,291 "p": 0.13,292 "p_stars": "",293 "ci_lo": null,294 "ci_hi": null,295 "page": 7,296 "confidence": "high",297 "notes": "Interaction EPC A x 2016 dummy (incremental 2016 premium)"298 },299 {300 "model_id": "T2-SEM",301 "var_name_printed": "Energy class B * Year 2016",302 "taxonomy_id": "energy_efficiency",303 "x_transform": "other",304 "x_unit": "binary",305 "beta": 0.107,306 "se": 0.041,307 "t": 2.619,308 "p": 0.009,309 "p_stars": "",310 "ci_lo": null,311 "ci_hi": null,312 "page": 7,313 "confidence": "high",314 "notes": "Interaction EPC B x 2016 dummy (B exists only in 2016, so equals the 2016 B premium)"315 },316 {317 "model_id": "T2-SEM",318 "var_name_printed": "Energy class C * Year 2016",319 "taxonomy_id": "energy_efficiency",320 "x_transform": "other",321 "x_unit": "binary",322 "beta": 0.106,323 "se": 0.041,324 "t": 2.597,325 "p": 0.009,326 "p_stars": "",327 "ci_lo": null,328 "ci_hi": null,329 "page": 7,330 "confidence": "high",331 "notes": "Interaction EPC C x 2016 dummy (incremental)"332 },333 {334 "model_id": "T2-SEM",335 "var_name_printed": "Energy class D * Year 2016",336 "taxonomy_id": "energy_efficiency",337 "x_transform": "other",338 "x_unit": "binary",339 "beta": 0.105,340 "se": 0.026,341 "t": 4.071,342 "p": null,343 "p_stars": "",344 "ci_lo": null,345 "ci_hi": null,346 "page": 7,347 "confidence": "high",348 "notes": "Interaction EPC D x 2016 dummy (incremental); p printed '-' (<0.000)"349 },350 {351 "model_id": "T2-SEM",352 "var_name_printed": "Energy class E * Year 2016",353 "taxonomy_id": "energy_efficiency",354 "x_transform": "other",355 "x_unit": "binary",356 "beta": 0.008,357 "se": 0.018,358 "t": 0.462,359 "p": 0.644,360 "p_stars": "",361 "ci_lo": null,362 "ci_hi": null,363 "page": 7,364 "confidence": "high",365 "notes": "Interaction EPC E x 2016 dummy (incremental)"366 },367 {368 "model_id": "T2-SEM",369 "var_name_printed": "Energy class F * Year 2016",370 "taxonomy_id": "energy_efficiency",371 "x_transform": "other",372 "x_unit": "binary",373 "beta": -0.033,374 "se": 0.024,375 "t": -1.386,376 "p": 0.166,377 "p_stars": "",378 "ci_lo": null,379 "ci_hi": null,380 "page": 7,381 "confidence": "high",382 "notes": "Interaction EPC F x 2016 dummy (incremental)"383 },384 {385 "model_id": "T2-SEM",386 "var_name_printed": "Commuting time",387 "taxonomy_id": "employment_access",388 "x_transform": "level",389 "x_unit": "minutes",390 "beta": 0.004,391 "se": 0.001,392 "t": 2.597,393 "p": 0.009,394 "p_stars": "",395 "ci_lo": null,396 "ci_hi": null,397 "page": 7,398 "confidence": "high",399 "notes": "Average commuting time of the zone (minutes), from Mobility Survey; positive sign"400 },401 {402 "model_id": "T2-SEM",403 "var_name_printed": "<200m from sea shore",404 "taxonomy_id": "water_proximity",405 "x_transform": "dummy",406 "x_unit": "binary",407 "beta": 0.131,408 "se": 0.029,409 "t": 4.532,410 "p": null,411 "p_stars": "",412 "ci_lo": null,413 "ci_hi": null,414 "page": 7,415 "confidence": "high",416 "notes": "Within 200 m of the sea shore; p printed '-' (<0.000)"417 },418 {419 "model_id": "T2-SEM",420 "var_name_printed": "Highway ramp",421 "taxonomy_id": "highway_distance",422 "x_transform": "dummy",423 "x_unit": "binary",424 "beta": 0.081,425 "se": 0.022,426 "t": 3.712,427 "p": null,428 "p_stars": "",429 "ci_lo": null,430 "ci_hi": null,431 "page": 7,432 "confidence": "high",433 "notes": "Municipality with highway access dummy; p printed '-' (<0.000)"434 },435 {436 "model_id": "T2-SEM",437 "var_name_printed": "<800 m from railway station",438 "taxonomy_id": "transit_distance",439 "x_transform": "dummy",440 "x_unit": "binary",441 "beta": 0.033,442 "se": 0.011,443 "t": 3.12,444 "p": 0.002,445 "p_stars": "",446 "ci_lo": null,447 "ci_hi": null,448 "page": 7,449 "confidence": "high",450 "notes": "Within 800 m of a railway station"451 },452 {453 "model_id": "T2-SEM",454 "var_name_printed": "Centrality index",455 "taxonomy_id": "cbd_distance",456 "x_transform": "level",457 "x_unit": "index",458 "beta": 0.025,459 "se": 0.003,460 "t": 8.68,461 "p": null,462 "p_stars": "",463 "ci_lo": null,464 "ci_hi": null,465 "page": 7,466 "confidence": "high",467 "notes": "Centrality index (3.5-20.5, higher = more central); p printed '-' (<0.000)"468 },469 {470 "model_id": "T2-SEM",471 "var_name_printed": "Average gross area floor ratio",472 "taxonomy_id": "density",473 "x_transform": "level",474 "x_unit": "index",475 "beta": 0.048,476 "se": 0.005,477 "t": 9.029,478 "p": null,479 "p_stars": "",480 "ci_lo": null,481 "ci_hi": null,482 "page": 7,483 "confidence": "high",484 "notes": "Average gross floor area ratio (m2/m2) of the zone, built density; p printed '-' (<0.000)"485 },486 {487 "model_id": "T2-SEM",488 "var_name_printed": "PC1 High income",489 "taxonomy_id": "income",490 "x_transform": "level",491 "x_unit": "index",492 "beta": 0.104,493 "se": 0.006,494 "t": 17.356,495 "p": null,496 "p_stars": "",497 "ci_lo": null,498 "ci_hi": null,499 "page": 7,500 "confidence": "high",501 "notes": "Principal component for high-income jobs/education of neighbourhood; p printed '-' (<0.000)"502 },503 {504 "model_id": "T2-SEM",505 "var_name_printed": "PC2 Med income",506 "taxonomy_id": "income",507 "x_transform": "level",508 "x_unit": "index",509 "beta": 0.072,510 "se": 0.007,511 "t": 10.979,512 "p": null,513 "p_stars": "",514 "ci_lo": null,515 "ci_hi": null,516 "page": 7,517 "confidence": "high",518 "notes": "Principal component for medium-income jobs; p printed '-' (<0.000)"519 }520 ]521}