{
 "record_id": "aa81dc840f8ab6c12b272e830117706e34b5a89a",
 "eligible": true,
 "exclusion_reason": null,
 "study": {
  "title": "Fresh air in the city: the impact of air pollution on the pricing of real estate",
  "year": 2024,
  "doi": "10.1007/s11356-023-31668-1",
  "country": "Poland",
  "region_city": "Warsaw",
  "sample_start": 2021,
  "sample_end": 2022,
  "property_type": "condo_apartment",
  "price_type": "listing",
  "data_source": "Web-scraped sale offers of apartments from otodom.pl, collected 20 Dec 2021 - 15 Feb 2022; Airly sensor PM data",
  "document_type": "journal",
  "estimators": [
   "spatial_error"
  ],
  "spatial_method": "spatial error model (SEM), k-nearest-neighbour weights",
  "time_fe": false,
  "location_fe": true,
  "se_type": "unknown",
  "n_obs_total": 14938,
  "ai_methods": [],
  "notes": "Table 3 prints coefficients with significance stars only (*p<0.1; **p<0.05; ***p<0.01); no SE, t or p. Dependent variable: price of a square metre of a flat (PLN/m2, level). District dummies (18 Warsaw districts) included, not extracted. Units from Table 2 descriptives: distance to city centre in km, transit time in minutes, PM in ug/m3 (yearly mean). Two submarkets: standard flats (n=13,539) and exclusive flats (n=1,399)."
 },
 "models": [
  {
   "model_id": "T3-c1",
   "table": "3",
   "column": "1 (Standard flats)",
   "page": 14,
   "dep_var": "Price per square metre of a flat (PLN/m2)",
   "dep_transform": "per_m2",
   "estimator": "spatial_error",
   "n_obs": 13539,
   "r2": null,
   "se_or_t_in_parentheses": "none",
   "sample_subset": "standard flats; lambda=0.485"
  },
  {
   "model_id": "T3-c2",
   "table": "3",
   "column": "2 (Exclusive flats)",
   "page": 14,
   "dep_var": "Price per square metre of a flat (PLN/m2)",
   "dep_transform": "per_m2",
   "estimator": "spatial_error",
   "n_obs": 1399,
   "r2": null,
   "se_or_t_in_parentheses": "none",
   "sample_subset": "exclusive (luxury) flats; lambda=0.382"
  }
 ],
 "coefficients": [
  {
   "model_id": "T3-c1",
   "var_name_printed": "Surface area (sqm)",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "m2",
   "beta": -36.59,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Surface area (sqm)",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "m2",
   "beta": 10.36,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Year of construction",
   "taxonomy_id": "age",
   "x_transform": "level",
   "x_unit": "years",
   "beta": 29.02,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Year built (higher = newer); sign opposite to age Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Year of construction",
   "taxonomy_id": "age",
   "x_transform": "level",
   "x_unit": "years",
   "beta": 36.24,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Year built (higher = newer); sign opposite to age Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Number of rooms",
   "taxonomy_id": "bedrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": -270.41,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Number of rooms",
   "taxonomy_id": "bedrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": -858.58,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Floor",
   "taxonomy_id": "floor_level",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 21.19,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Floor",
   "taxonomy_id": "floor_level",
   "x_transform": "level",
   "x_unit": "count",
   "beta": -99.0,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Floors in building",
   "taxonomy_id": "storeys",
   "x_transform": "level",
   "x_unit": "count",
   "beta": -49.85,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Floors in building",
   "taxonomy_id": "storeys",
   "x_transform": "level",
   "x_unit": "count",
   "beta": -78.01,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Market type (secondary)",
   "taxonomy_id": "other",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 1120.63,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Secondary (resale) vs primary (developer) market Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Market type (secondary)",
   "taxonomy_id": "other",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 1533.71,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Secondary (resale) vs primary (developer) market Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Air conditioning",
   "taxonomy_id": "air_conditioning",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 709.32,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Air conditioning",
   "taxonomy_id": "air_conditioning",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 949.89,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Garage",
   "taxonomy_id": "garage",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 477.42,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Garage",
   "taxonomy_id": "garage",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -181.82,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Elevator",
   "taxonomy_id": "accessibility",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 310.65,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Elevator",
   "taxonomy_id": "accessibility",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 638.83,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "*",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Balcony",
   "taxonomy_id": "terrace_balcony",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -221.8,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Balcony",
   "taxonomy_id": "terrace_balcony",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": -363.79,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Garden",
   "taxonomy_id": "garden",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 45.04,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Garden",
   "taxonomy_id": "garden",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 755.41,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Terrace",
   "taxonomy_id": "terrace_balcony",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 99.67,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Terrace",
   "taxonomy_id": "terrace_balcony",
   "x_transform": "binary",
   "x_unit": "binary",
   "beta": 777.06,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Distance to city centre",
   "taxonomy_id": "cbd_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -366.55,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Distance to city centre",
   "taxonomy_id": "cbd_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -1641.29,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Transit time",
   "taxonomy_id": "transit_distance",
   "x_transform": "level",
   "x_unit": "minutes",
   "beta": -14.63,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Public-transport travel time to centre, minutes Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Transit time",
   "taxonomy_id": "transit_distance",
   "x_transform": "level",
   "x_unit": "minutes",
   "beta": 99.83,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Public-transport travel time to centre, minutes Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Mean PM10",
   "taxonomy_id": "air_pollution",
   "x_transform": "level",
   "x_unit": "ug/m3",
   "beta": -60.07,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Yearly mean PM10 concentration Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Mean PM10",
   "taxonomy_id": "air_pollution",
   "x_transform": "level",
   "x_unit": "ug/m3",
   "beta": -89.05,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Yearly mean PM10 concentration Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Mean PM2.5",
   "taxonomy_id": "air_pollution",
   "x_transform": "level",
   "x_unit": "ug/m3",
   "beta": 92.58,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Yearly mean PM2.5 concentration Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Mean PM2.5",
   "taxonomy_id": "air_pollution",
   "x_transform": "level",
   "x_unit": "ug/m3",
   "beta": -421.3,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Yearly mean PM2.5 concentration Stars only; no SE printed."
  },
  {
   "model_id": "T3-c1",
   "var_name_printed": "Mean PM1",
   "taxonomy_id": "air_pollution",
   "x_transform": "level",
   "x_unit": "ug/m3",
   "beta": -12.31,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Yearly mean PM1 concentration Stars only; no SE printed."
  },
  {
   "model_id": "T3-c2",
   "var_name_printed": "Mean PM1",
   "taxonomy_id": "air_pollution",
   "x_transform": "level",
   "x_unit": "ug/m3",
   "beta": 811.13,
   "se": null,
   "t": null,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "high",
   "notes": "Yearly mean PM1 concentration Stars only; no SE printed."
  }
 ]
}