{
 "record_id": "03c7319d6d03a3326e49bd775951ee9918110cee",
 "eligible": true,
 "exclusion_reason": null,
 "study": {
  "title": "Does my house have a premium or discount in relation to my neighbors? A regression-kriging approach",
  "year": 2020,
  "doi": "10.1016/j.seps.2020.100914",
  "country": "Spain",
  "region_city": "Granada",
  "sample_start": 2013,
  "sample_end": 2013,
  "property_type": "condo_apartment",
  "price_type": "listing",
  "data_source": "Idealista.com listings of second-hand apartments, first two quarters of 2013 (296 apartments, ~47% of second-hand sales in the city)",
  "document_type": "journal",
  "estimators": [
   "OLS",
   "other"
  ],
  "spatial_method": "regression-kriging (geostatistical, spherical variogram of residuals)",
  "time_fe": false,
  "location_fe": false,
  "se_type": "unknown",
  "n_obs_total": 296,
  "ai_methods": [],
  "notes": "Socio-Economic Planning Sciences (accepted manuscript). Only structural characteristics in the model; location captured through kriged residuals. Table 2 reports coefficients and p-values only."
 },
 "models": [
  {
   "model_id": "T2-OLS",
   "table": "2",
   "column": "OLS",
   "page": 14,
   "dep_var": "log(PRICE) (listing price, 1000 EUR)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 296,
   "r2": null,
   "se_or_t_in_parentheses": "p",
   "sample_subset": "296 second-hand apartments listed for sale, Granada, 2013 H1",
   "notes": "Semi-log OLS with structural characteristics only (no location variables). Cross-validation R2 = 0.596, RMSE 0.345 (not in-sample R2). p-values in parentheses."
  },
  {
   "model_id": "T2-RK",
   "table": "2",
   "column": "RK",
   "page": 14,
   "dep_var": "log(PRICE) (listing price, 1000 EUR)",
   "dep_transform": "log",
   "estimator": "other",
   "n_obs": 296,
   "r2": null,
   "se_or_t_in_parentheses": "p",
   "sample_subset": "same sample",
   "notes": "Regression-kriging (regression with spatially correlated residuals; spherical variogram nugget 0.058, partial sill 0.045, range 1676 m). Cross-validation R2 = 0.733, RMSE 0.281. p-values in parentheses."
  }
 ],
 "coefficients": [
  {
   "model_id": "T2-OLS",
   "var_name_printed": "AREA",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "m2",
   "beta": 0.006,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). area of apartment in m2"
  },
  {
   "model_id": "T2-RK",
   "var_name_printed": "AREA",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "m2",
   "beta": 0.006,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). area of apartment in m2"
  },
  {
   "model_id": "T2-OLS",
   "var_name_printed": "AGE",
   "taxonomy_id": "age",
   "x_transform": "level",
   "x_unit": "years",
   "beta": -0.063,
   "se": null,
   "t": null,
   "p": 0.02,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). age of apartment in years, adjusted for major rehabilitation (coefficient per year as printed; magnitude large relative to mean age 23.4)"
  },
  {
   "model_id": "T2-RK",
   "var_name_printed": "AGE",
   "taxonomy_id": "age",
   "x_transform": "level",
   "x_unit": "years",
   "beta": -0.084,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). age of apartment in years, adjusted for major rehabilitation (coefficient per year as printed; magnitude large relative to mean age 23.4)"
  },
  {
   "model_id": "T2-OLS",
   "var_name_printed": "BATH",
   "taxonomy_id": "bathrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.148,
   "se": null,
   "t": null,
   "p": 0.005,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). number of bathrooms (quality indicator)"
  },
  {
   "model_id": "T2-RK",
   "var_name_printed": "BATH",
   "taxonomy_id": "bathrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.128,
   "se": null,
   "t": null,
   "p": 0.002,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). number of bathrooms (quality indicator)"
  },
  {
   "model_id": "T2-OLS",
   "var_name_printed": "PENT",
   "taxonomy_id": "dwelling_type",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.169,
   "se": null,
   "t": null,
   "p": 0.016,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). 1 = penthouse apartment"
  },
  {
   "model_id": "T2-RK",
   "var_name_printed": "PENT",
   "taxonomy_id": "dwelling_type",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.124,
   "se": null,
   "t": null,
   "p": 0.02,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). 1 = penthouse apartment"
  },
  {
   "model_id": "T2-OLS",
   "var_name_printed": "HEAT",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.112,
   "se": null,
   "t": null,
   "p": 0.029,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). 1 = central heating"
  },
  {
   "model_id": "T2-RK",
   "var_name_printed": "HEAT",
   "taxonomy_id": "heating",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.084,
   "se": null,
   "t": null,
   "p": 0.03,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). 1 = central heating"
  },
  {
   "model_id": "T2-OLS",
   "var_name_printed": "AIRCON",
   "taxonomy_id": "air_conditioning",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.141,
   "se": null,
   "t": null,
   "p": 0.001,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). 1 = air conditioning"
  },
  {
   "model_id": "T2-RK",
   "var_name_printed": "AIRCON",
   "taxonomy_id": "air_conditioning",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.109,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). 1 = air conditioning"
  },
  {
   "model_id": "T2-OLS",
   "var_name_printed": "ELEV",
   "taxonomy_id": "accessibility",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.369,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). 1 = building has elevator"
  },
  {
   "model_id": "T2-RK",
   "var_name_printed": "ELEV",
   "taxonomy_id": "accessibility",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.295,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). 1 = building has elevator"
  },
  {
   "model_id": "T2-OLS",
   "var_name_printed": "FURNISH",
   "taxonomy_id": "appliances",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.124,
   "se": null,
   "t": null,
   "p": 0.003,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). 1 = apartment furnished; mapped to appliances (nearest leaf)"
  },
  {
   "model_id": "T2-RK",
   "var_name_printed": "FURNISH",
   "taxonomy_id": "appliances",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 0.113,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Table 2: coefficient with p-value in parentheses (no SE). 1 = apartment furnished; mapped to appliances (nearest leaf)"
  }
 ]
}