{
 "record_id": "d458e3973f160efbbd5c7fd28ec076d63dc933e1",
 "eligible": true,
 "exclusion_reason": null,
 "study": {
  "title": "An Estimation of the Coastal Premium for Residential Housing Prices in San Diego County",
  "year": 2011,
  "doi": "10.1007/s11146-009-9195-x",
  "country": "United States",
  "region_city": "San Diego County, California",
  "sample_start": 2006,
  "sample_end": 2006,
  "property_type": "single_family",
  "price_type": "transaction",
  "data_source": "9,755 single-family home sales in San Diego County, 2006",
  "document_type": "journal",
  "estimators": [
   "OLS"
  ],
  "spatial_method": "none (106 neighbourhood/ZIP fixed effects)",
  "time_fe": false,
  "location_fe": true,
  "se_type": "unknown",
  "n_obs_total": 9755,
  "ai_methods": [],
  "notes": "Journal of Real Estate Finance and Economics 42:211-228 (online 2009). Semi-log OLS with 106 neighbourhood fixed effects (Appendix Table 3, not extracted). t-statistics in parentheses; significance letters a (0.01), b (0.05), c (0.10) converted to ***, **, *. Distances in feet; square footage in sqft. Coastal variables: Model 1 log distance to coast; Model 2 one-mile band dummies (reference beyond 6 miles); Model 3 500-ft/1000-ft bands within the first mile plus mile bands."
 },
 "models": [
  {
   "model_id": "T2-c1",
   "table": "2",
   "column": "Model 1",
   "page": 9,
   "dep_var": "Ln_Price (natural log of sales price)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 9755,
   "r2": 0.7798,
   "se_or_t_in_parentheses": "t",
   "sample_subset": "All sales; neighbourhood fixed effects; coastal specification: log coastal distance"
  },
  {
   "model_id": "T2-c2",
   "table": "2",
   "column": "Model 2",
   "page": 9,
   "dep_var": "Ln_Price (natural log of sales price)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 9755,
   "r2": 0.7749,
   "se_or_t_in_parentheses": "t",
   "sample_subset": "All sales; neighbourhood fixed effects; coastal specification: 1-mile distance bands"
  },
  {
   "model_id": "T2-c3",
   "table": "2",
   "column": "Model 3",
   "page": 9,
   "dep_var": "Ln_Price (natural log of sales price)",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 9755,
   "r2": 0.7795,
   "se_or_t_in_parentheses": "t",
   "sample_subset": "All sales; neighbourhood fixed effects; coastal specification: 500/1000-ft and mile bands"
  }
 ],
 "coefficients": [
  {
   "model_id": "T2-c1",
   "var_name_printed": "Age",
   "taxonomy_id": "age",
   "x_transform": "level",
   "x_unit": "years",
   "beta": -0.007867,
   "se": null,
   "t": -12.55,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Age of house in years; quadratic with Age_2"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "Age",
   "taxonomy_id": "age",
   "x_transform": "level",
   "x_unit": "years",
   "beta": -0.007734,
   "se": null,
   "t": -12.18,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Age of house in years; quadratic with Age_2"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Age",
   "taxonomy_id": "age",
   "x_transform": "level",
   "x_unit": "years",
   "beta": -0.007778,
   "se": null,
   "t": -12.36,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Age of house in years; quadratic with Age_2"
  },
  {
   "model_id": "T2-c1",
   "var_name_printed": "Age_2",
   "taxonomy_id": "age",
   "x_transform": "squared",
   "x_unit": "years",
   "beta": 8.6e-05,
   "se": null,
   "t": 11.63,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Age squared"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "Age_2",
   "taxonomy_id": "age",
   "x_transform": "squared",
   "x_unit": "years",
   "beta": 8.7e-05,
   "se": null,
   "t": 11.65,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Age squared"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Age_2",
   "taxonomy_id": "age",
   "x_transform": "squared",
   "x_unit": "years",
   "beta": 8.5e-05,
   "se": null,
   "t": 11.41,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Age squared"
  },
  {
   "model_id": "T2-c1",
   "var_name_printed": "Bedrooms",
   "taxonomy_id": "bedrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.002218,
   "se": null,
   "t": 0.63,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": ""
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "Bedrooms",
   "taxonomy_id": "bedrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.00225,
   "se": null,
   "t": 0.64,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": ""
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Bedrooms",
   "taxonomy_id": "bedrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.00354,
   "se": null,
   "t": 1.01,
   "p": null,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": ""
  },
  {
   "model_id": "T2-c1",
   "var_name_printed": "Bathrooms",
   "taxonomy_id": "bathrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.042084,
   "se": null,
   "t": 8.05,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": ""
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "Bathrooms",
   "taxonomy_id": "bathrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.045153,
   "se": null,
   "t": 8.55,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": ""
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Bathrooms",
   "taxonomy_id": "bathrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.041481,
   "se": null,
   "t": 7.92,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": ""
  },
  {
   "model_id": "T2-c1",
   "var_name_printed": "SqftStruc",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "sqft",
   "beta": 0.000226,
   "se": null,
   "t": 47.76,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Square footage of house"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "SqftStruc",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "sqft",
   "beta": 0.000225,
   "se": null,
   "t": 46.92,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Square footage of house"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "SqftStruc",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "sqft",
   "beta": 0.000226,
   "se": null,
   "t": 47.68,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Square footage of house"
  },
  {
   "model_id": "T2-c1",
   "var_name_printed": "LotSqft",
   "taxonomy_id": "lot_size",
   "x_transform": "level",
   "x_unit": "sqft",
   "beta": 4.84e-08,
   "se": null,
   "t": 2.24,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Square footage of lot"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "LotSqft",
   "taxonomy_id": "lot_size",
   "x_transform": "level",
   "x_unit": "sqft",
   "beta": 4.73e-08,
   "se": null,
   "t": 2.16,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Square footage of lot"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "LotSqft",
   "taxonomy_id": "lot_size",
   "x_transform": "level",
   "x_unit": "sqft",
   "beta": 4.87e-08,
   "se": null,
   "t": 2.24,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Square footage of lot"
  },
  {
   "model_id": "T2-c1",
   "var_name_printed": "LnDtownDist",
   "taxonomy_id": "cbd_distance",
   "x_transform": "log",
   "x_unit": "feet",
   "beta": 0.175223,
   "se": null,
   "t": 7.66,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Log distance in feet to downtown San Diego"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "LnDtownDist",
   "taxonomy_id": "cbd_distance",
   "x_transform": "log",
   "x_unit": "feet",
   "beta": 0.076875,
   "se": null,
   "t": 3.29,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Log distance in feet to downtown San Diego"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "LnDtownDist",
   "taxonomy_id": "cbd_distance",
   "x_transform": "log",
   "x_unit": "feet",
   "beta": 0.075096,
   "se": null,
   "t": 3.25,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Log distance in feet to downtown San Diego"
  },
  {
   "model_id": "T2-c1",
   "var_name_printed": "LnFreeDist",
   "taxonomy_id": "highway_distance",
   "x_transform": "log",
   "x_unit": "feet",
   "beta": 0.010732,
   "se": null,
   "t": 3.06,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Log distance in feet to nearest freeway"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "LnFreeDist",
   "taxonomy_id": "highway_distance",
   "x_transform": "log",
   "x_unit": "feet",
   "beta": 0.015182,
   "se": null,
   "t": 4.17,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Log distance in feet to nearest freeway"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "LnFreeDist",
   "taxonomy_id": "highway_distance",
   "x_transform": "log",
   "x_unit": "feet",
   "beta": 0.009351,
   "se": null,
   "t": 2.57,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Log distance in feet to nearest freeway"
  },
  {
   "model_id": "T2-c1",
   "var_name_printed": "Dist_API",
   "taxonomy_id": "school_quality",
   "x_transform": "level",
   "x_unit": "index",
   "beta": 0.000956,
   "se": null,
   "t": 5.87,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Elementary school district base Academic Performance Index (200-1000 scale)"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "Dist_API",
   "taxonomy_id": "school_quality",
   "x_transform": "level",
   "x_unit": "index",
   "beta": 0.001068,
   "se": null,
   "t": 6.48,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Elementary school district base Academic Performance Index (200-1000 scale)"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Dist_API",
   "taxonomy_id": "school_quality",
   "x_transform": "level",
   "x_unit": "index",
   "beta": 0.001046,
   "se": null,
   "t": 6.41,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Elementary school district base Academic Performance Index (200-1000 scale)"
  },
  {
   "model_id": "T2-c1",
   "var_name_printed": "LnCoastDist",
   "taxonomy_id": "water_proximity",
   "x_transform": "log",
   "x_unit": "feet",
   "beta": -0.146047,
   "se": null,
   "t": -21.12,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Log distance in feet from house to coast"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "Coast_0to1miles",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.352211,
   "se": null,
   "t": 13.4,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence within 1 mile of coast of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "Coast_2miles",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.200634,
   "se": null,
   "t": 7.92,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 1 to 2 miles of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "Coast_3miles",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.118684,
   "se": null,
   "t": 5.24,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 2 to 3 miles of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "Coast_4miles",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.082033,
   "se": null,
   "t": 4.13,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 3 to 4 miles of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "Coast_5miles",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.053282,
   "se": null,
   "t": 3.0,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 4 to 5 miles of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c2",
   "var_name_printed": "Coast_6miles",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.035755,
   "se": null,
   "t": 2.59,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 5 to 6 miles of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Coast_500ft",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.702698,
   "se": null,
   "t": 15.43,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence within 500 ft of coast of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Coast_1000ft",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.487333,
   "se": null,
   "t": 11.11,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 500 to 1,000 ft of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Coast_2000ft",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.454806,
   "se": null,
   "t": 13.67,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 1,000 to 2,000 ft of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Coast_3000ft",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.438393,
   "se": null,
   "t": 13.97,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 2,000 to 3,000 ft of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Coast_4000ft",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.293654,
   "se": null,
   "t": 9.38,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 3,000 to 4,000 ft of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Coast_5280ft",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.20111,
   "se": null,
   "t": 6.77,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 4,000 to 5,280 ft of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Coast_2miles",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.193321,
   "se": null,
   "t": 7.71,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 1 to 2 miles of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Coast_3miles",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.115352,
   "se": null,
   "t": 5.15,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 2 to 3 miles of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Coast_4miles",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.082574,
   "se": null,
   "t": 4.2,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 3 to 4 miles of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Coast_5miles",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.053941,
   "se": null,
   "t": 3.07,
   "p": null,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 4 to 5 miles of coast; reference beyond 6 miles"
  },
  {
   "model_id": "T2-c3",
   "var_name_printed": "Coast_6miles",
   "taxonomy_id": "water_proximity",
   "x_transform": "dummy",
   "x_unit": "binary",
   "beta": 0.033207,
   "se": null,
   "t": 2.43,
   "p": null,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 9,
   "confidence": "high",
   "notes": "Distance band dummy: residence 5 to 6 miles of coast; reference beyond 6 miles"
  }
 ]
}