{
 "record_id": "942f0ff361a49b68c1333c31381f78c02a3d0937",
 "eligible": true,
 "exclusion_reason": null,
 "study": {
  "title": "How different are dwellings whose energy efficiency impacts price formation?",
  "year": 2019,
  "doi": "10.1088/1757-899x/603/4/042015",
  "country": "Spain",
  "region_city": "Barcelona Metropolitan Area (164 municipalities)",
  "sample_start": 2014,
  "sample_end": 2016,
  "property_type": "condo_apartment",
  "price_type": "listing",
  "data_source": "Habitaclia listing portal (asking prices, Nov 2014 and Apr 2016 snapshots), 2001 Census, 2013 Cadastre, Mobility Survey",
  "document_type": "conference",
  "estimators": [
   "spatial_error"
  ],
  "spatial_method": "spatial error model, ML, rook contiguity weights (GeoDa)",
  "time_fe": true,
  "location_fe": false,
  "se_type": "unknown",
  "n_obs_total": 6492,
  "ai_methods": [],
  "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'."
 },
 "models": [
  {
   "model_id": "T2-SEM",
   "table": "2",
   "column": "1",
   "page": 7,
   "dep_var": "ln(asking price, EUR)",
   "dep_transform": "log",
   "estimator": "spatial_error",
   "n_obs": 6492,
   "r2": 0.764,
   "se_or_t_in_parentheses": "se",
   "sample_subset": "Pooled 2014 and 2016 listings, spatial error ML; z-values and p-values in separate columns"
  }
 ],
 "coefficients": [
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Area",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "m2",
   "beta": 0.015,
   "se": null,
   "t": 37.546,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "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"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Area^2",
   "taxonomy_id": "living_area",
   "x_transform": "squared",
   "x_unit": "m2",
   "beta": -0.0,
   "se": null,
   "t": -19.709,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "medium",
   "notes": "Quadratic area term printed as -0.000 (rounded); SE 0.000; SE printed as 0.000 (rounded), stored as null; use z-value"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Number of bathrooms",
   "taxonomy_id": "bathrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.098,
   "se": 0.008,
   "t": 11.842,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Air conditioner",
   "taxonomy_id": "air_conditioning",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.074,
   "se": 0.008,
   "t": 8.905,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Central heating",
   "taxonomy_id": "heating",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.041,
   "se": 0.009,
   "t": 4.686,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Retrofitted apartment",
   "taxonomy_id": "renovation",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.034,
   "se": 0.01,
   "t": 3.437,
   "p": 0.001,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": ""
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Swimming pool",
   "taxonomy_id": "pool",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.186,
   "se": 0.015,
   "t": 11.976,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Lift",
   "taxonomy_id": "accessibility",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.089,
   "se": 0.008,
   "t": 10.452,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Inverse of building age",
   "taxonomy_id": "age",
   "x_transform": "other",
   "x_unit": "years",
   "beta": 0.238,
   "se": 0.045,
   "t": 5.34,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Regressor is 1/(building age in years); p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Energy class A",
   "taxonomy_id": "energy_efficiency",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.086,
   "se": 0.034,
   "t": 2.492,
   "p": 0.013,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "EPC class A vs reference G (2014 baseline; year-2016 interactions separate)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Energy class C",
   "taxonomy_id": "energy_efficiency",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": -0.011,
   "se": 0.029,
   "t": -0.375,
   "p": 0.708,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "EPC class C vs G (2014 baseline); class B absent in 2014"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Energy class D",
   "taxonomy_id": "energy_efficiency",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.0,
   "se": 0.019,
   "t": 0.02,
   "p": 0.984,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "EPC class D vs G (2014 baseline)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Energy class E",
   "taxonomy_id": "energy_efficiency",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.007,
   "se": 0.013,
   "t": 0.572,
   "p": 0.567,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "EPC class E vs G (2014 baseline)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Energy class F",
   "taxonomy_id": "energy_efficiency",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.019,
   "se": 0.016,
   "t": 1.132,
   "p": 0.258,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "EPC class F vs G (2014 baseline)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Energy class A * Year 2016",
   "taxonomy_id": "energy_efficiency",
   "x_transform": "other",
   "x_unit": "binary",
   "beta": 0.067,
   "se": 0.044,
   "t": 1.515,
   "p": 0.13,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Interaction EPC A x 2016 dummy (incremental 2016 premium)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Energy class B * Year 2016",
   "taxonomy_id": "energy_efficiency",
   "x_transform": "other",
   "x_unit": "binary",
   "beta": 0.107,
   "se": 0.041,
   "t": 2.619,
   "p": 0.009,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Interaction EPC B x 2016 dummy (B exists only in 2016, so equals the 2016 B premium)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Energy class C * Year 2016",
   "taxonomy_id": "energy_efficiency",
   "x_transform": "other",
   "x_unit": "binary",
   "beta": 0.106,
   "se": 0.041,
   "t": 2.597,
   "p": 0.009,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Interaction EPC C x 2016 dummy (incremental)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Energy class D * Year 2016",
   "taxonomy_id": "energy_efficiency",
   "x_transform": "other",
   "x_unit": "binary",
   "beta": 0.105,
   "se": 0.026,
   "t": 4.071,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Interaction EPC D x 2016 dummy (incremental); p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Energy class E * Year 2016",
   "taxonomy_id": "energy_efficiency",
   "x_transform": "other",
   "x_unit": "binary",
   "beta": 0.008,
   "se": 0.018,
   "t": 0.462,
   "p": 0.644,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Interaction EPC E x 2016 dummy (incremental)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Energy class F * Year 2016",
   "taxonomy_id": "energy_efficiency",
   "x_transform": "other",
   "x_unit": "binary",
   "beta": -0.033,
   "se": 0.024,
   "t": -1.386,
   "p": 0.166,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Interaction EPC F x 2016 dummy (incremental)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Commuting time",
   "taxonomy_id": "employment_access",
   "x_transform": "level",
   "x_unit": "minutes",
   "beta": 0.004,
   "se": 0.001,
   "t": 2.597,
   "p": 0.009,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Average commuting time of the zone (minutes), from Mobility Survey; positive sign"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "<200m from sea shore",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.131,
   "se": 0.029,
   "t": 4.532,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Within 200 m of the sea shore; p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Highway ramp",
   "taxonomy_id": "highway_distance",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.081,
   "se": 0.022,
   "t": 3.712,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Municipality with highway access dummy; p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "<800 m from railway station",
   "taxonomy_id": "transit_distance",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.033,
   "se": 0.011,
   "t": 3.12,
   "p": 0.002,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Within 800 m of a railway station"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Centrality index",
   "taxonomy_id": "cbd_distance",
   "x_transform": "level",
   "x_unit": "index",
   "beta": 0.025,
   "se": 0.003,
   "t": 8.68,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Centrality index (3.5-20.5, higher = more central); p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "Average gross area floor ratio",
   "taxonomy_id": "density",
   "x_transform": "level",
   "x_unit": "index",
   "beta": 0.048,
   "se": 0.005,
   "t": 9.029,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Average gross floor area ratio (m2/m2) of the zone, built density; p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "PC1 High income",
   "taxonomy_id": "income",
   "x_transform": "level",
   "x_unit": "index",
   "beta": 0.104,
   "se": 0.006,
   "t": 17.356,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Principal component for high-income jobs/education of neighbourhood; p printed '-' (<0.000)"
  },
  {
   "model_id": "T2-SEM",
   "var_name_printed": "PC2 Med income",
   "taxonomy_id": "income",
   "x_transform": "level",
   "x_unit": "index",
   "beta": 0.072,
   "se": 0.007,
   "t": 10.979,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 7,
   "confidence": "high",
   "notes": "Principal component for medium-income jobs; p printed '-' (<0.000)"
  }
 ]
}