{
 "record_id": "122e07c191e40cdc3321c3817fb731f2d55466e1",
 "eligible": true,
 "exclusion_reason": null,
 "study": {
  "title": "Path selection of spatial econometric model for mass appraisal of real estate: evidence from Yinchuan, China",
  "year": 2023,
  "doi": "10.3846/ijspm.2023.20376",
  "country": "China",
  "region_city": "Yinchuan, Xixia District (Ningxia)",
  "sample_start": 2022,
  "sample_end": 2022,
  "property_type": "condo_apartment",
  "price_type": "listing",
  "data_source": "Listing prices (yuan/m2) from lianjia.com, anjuke.com, 58.com collected 1-7 April 2022; 429 benchmark properties selected from >2,500 listings",
  "document_type": "journal",
  "estimators": [
   "spatial_lag",
   "other"
  ],
  "spatial_method": "Spatial Durbin model, k=16 nearest-neighbour weight matrix (GeoDa)",
  "time_fe": false,
  "location_fe": false,
  "se_type": "unknown",
  "n_obs_total": 429,
  "ai_methods": [],
  "notes": "Dependent variable Ln(Y) with Y = unit price in yuan/m2 (log of price per m2). Only Table 9 (SDM) prints coefficients with SE/t/p; Table 8 reports t-statistics and p-values only for CLR/SLX/SLM/SEM/SDM/SDEM/SAC/GNS, so those models could not be extracted. Spatial lags of regressors (W_Ar -0.0016, W_EH -0.0758, W_Ag 0.0109, W_F -0.0058, W_D -0.0080) and rho 0.6902 not extracted. Many location variables enter as inverse distance or quality/distance ratios (x_transform 'other')."
 },
 "models": [
  {
   "model_id": "T9-SDM",
   "table": "9",
   "column": "1",
   "page": 11,
   "dep_var": "Ln unit listing price (yuan/m2)",
   "dep_transform": "log",
   "estimator": "spatial_lag",
   "n_obs": 429,
   "r2": 0.9037,
   "se_or_t_in_parentheses": "none",
   "sample_subset": "Spatial Durbin model (coefficient, SE, t, p in separate columns); R2 from Table 7"
  }
 ],
 "coefficients": [
  {
   "model_id": "T9-SDM",
   "var_name_printed": "Ar",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "m2",
   "beta": 0.0029,
   "se": 0.0002,
   "t": 13.05,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 11,
   "confidence": "high",
   "notes": "Building area in m2 (range 40-200)"
  },
  {
   "model_id": "T9-SDM",
   "var_name_printed": "D",
   "taxonomy_id": "condition",
   "x_transform": "other",
   "x_unit": "index",
   "beta": 0.0219,
   "se": 0.0025,
   "t": 8.88,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 11,
   "confidence": "high",
   "notes": "Decoration/finish level ordinal score: blank 2, simple 4, medium 6, hardcover 8, luxury 10"
  },
  {
   "model_id": "T9-SDM",
   "var_name_printed": "F",
   "taxonomy_id": "floor_level",
   "x_transform": "other",
   "x_unit": "index",
   "beta": 0.0285,
   "se": 0.0048,
   "t": 5.93,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 11,
   "confidence": "high",
   "notes": "Floor position ordinal score 1-3/4 (high-rise: low 1, middle 3, high 2; low-rise: low 3, medium 2, high 1), not floor number"
  },
  {
   "model_id": "T9-SDM",
   "var_name_printed": "EH",
   "taxonomy_id": "accessibility",
   "x_transform": "level",
   "x_unit": "share",
   "beta": 0.099,
   "se": 0.019,
   "t": 5.22,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 11,
   "confidence": "high",
   "notes": "Elevators per household on the floor (number of elevators / number of units on the floor), proxy for elevator access"
  },
  {
   "model_id": "T9-SDM",
   "var_name_printed": "Ag",
   "taxonomy_id": "age",
   "x_transform": "level",
   "x_unit": "years",
   "beta": -0.0157,
   "se": 0.001,
   "t": -15.74,
   "p": 0.0,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 11,
   "confidence": "high",
   "notes": "Age = 2022.4.1 minus year built, years"
  },
  {
   "model_id": "T9-SDM",
   "var_name_printed": "B",
   "taxonomy_id": "transit_distance",
   "x_transform": "other",
   "x_unit": "index",
   "beta": 0.0005,
   "se": 0.0002,
   "t": 2.99,
   "p": 0.003,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 11,
   "confidence": "high",
   "notes": "Bus: number of bus routes divided by distance to bus stop (quantity/distance), higher = better access; sign opposite to a distance measure"
  },
  {
   "model_id": "T9-SDM",
   "var_name_printed": "MR",
   "taxonomy_id": "highway_distance",
   "x_transform": "other",
   "x_unit": "index",
   "beta": -0.0037,
   "se": 0.0014,
   "t": -2.68,
   "p": 0.007,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 11,
   "confidence": "high",
   "notes": "Main road: inverse geographical distance (anti-distance); negative sign means closer to main road lowers price"
  },
  {
   "model_id": "T9-SDM",
   "var_name_printed": "SM",
   "taxonomy_id": "commercial_distance",
   "x_transform": "other",
   "x_unit": "index",
   "beta": 0.0035,
   "se": 0.0018,
   "t": 1.98,
   "p": 0.048,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 11,
   "confidence": "high",
   "notes": "Shopping mall: service-capacity score (municipal 3, district 2, street 1) divided by distance"
  },
  {
   "model_id": "T9-SDM",
   "var_name_printed": "CBD",
   "taxonomy_id": "cbd_distance",
   "x_transform": "other",
   "x_unit": "index",
   "beta": 0.4269,
   "se": 0.1393,
   "t": 3.06,
   "p": 0.002,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 11,
   "confidence": "high",
   "notes": "CBD: inverse geographical distance (anti-distance); positive sign means closer to CBD raises price"
  },
  {
   "model_id": "T9-SDM",
   "var_name_printed": "P",
   "taxonomy_id": "green_space",
   "x_transform": "other",
   "x_unit": "index",
   "beta": 0.0048,
   "se": 0.0018,
   "t": 2.61,
   "p": 0.009,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 11,
   "confidence": "high",
   "notes": "Park: inverse geographical distance (anti-distance)"
  }
 ]
}