{
 "record_id": "67d132eca470e26b7a8c41462ca1252d056a93bb",
 "eligible": true,
 "exclusion_reason": null,
 "study": {
  "title": "Spatial and Social Media Data Analytics of Housing Prices in Shenzhen, China",
  "year": 2016,
  "doi": "10.1371/journal.pone.0164553",
  "country": "China",
  "region_city": "Shenzhen",
  "sample_start": 2015,
  "sample_end": 2015,
  "property_type": "condo_apartment",
  "price_type": "transaction",
  "data_source": "New housing transaction data from Shenzhen Research Centre for Digital City Engineering (27,112 units in 159 developments, July-December 2015; 25,323 after cleaning); attributes crawled from SOFANG; Sina Weibo check-in POI data",
  "document_type": "journal",
  "estimators": [
   "OLS",
   "GWR"
  ],
  "spatial_method": "GWR (bandwidth 0.337) in addition to global OLS",
  "time_fe": false,
  "location_fe": false,
  "se_type": "unknown",
  "n_obs_total": 25323,
  "ai_methods": [
   "social media check-in hot-spot analysis (Getis-Ord Gi*)"
  ],
  "notes": "Semi-log OLS (Table 4) reports coefficient, t-ratio and p-value columns (no SEs); only 1%-significant variables reported in Table 4 (NumBed, RPlot, DSnursery, DSmiddle omitted there). Table 5 GWR reports distribution of local coefficients (median recorded as beta, quartiles in notes). GiZScore variables are social-media-derived activity hot-spot indices (mapped to neighbourhood_amenities and green_space). Constant 0.060 for ln(price) suggests price may be scaled, but the authors interpret coefficients as percentage effects per unit."
 },
 "models": [
  {
   "model_id": "T4-c1",
   "table": "4",
   "column": "1",
   "page": 13,
   "dep_var": "ln(price) of new housing unit",
   "dep_transform": "log",
   "estimator": "OLS",
   "n_obs": 25323,
   "r2": 0.724,
   "se_or_t_in_parentheses": "t",
   "sample_subset": "Global hedonic price model (HPM), semi-log OLS; 25,323 new-housing transactions, Shenzhen, July-December 2015; t-ratio and p-value printed in separate columns (no parentheses); only variables significant at 1% listed"
  },
  {
   "model_id": "T5-c1",
   "table": "5",
   "column": "median",
   "page": 14,
   "dep_var": "ln(price) of new housing unit",
   "dep_transform": "log",
   "estimator": "GWR",
   "n_obs": 25323,
   "r2": 0.9399,
   "se_or_t_in_parentheses": "none",
   "sample_subset": "GWR local coefficients: table reports min / lower quartile / median / upper quartile / max and a p-value per variable; beta recorded = median local coefficient (bandwidth 0.337)"
  }
 ],
 "coefficients": [
  {
   "model_id": "T4-c1",
   "var_name_printed": "DCBD",
   "taxonomy_id": "cbd_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.326,
   "se": null,
   "t": -55.863,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Distance to CBD (Citizen Centre) in km; p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "Fee",
   "taxonomy_id": "other",
   "x_transform": "level",
   "x_unit": "currency",
   "beta": 0.293,
   "se": null,
   "t": 43.604,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Property management fee (RMB per m2 per month presumably; unit printed as RMB); p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "DPark",
   "taxonomy_id": "green_space",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.111,
   "se": null,
   "t": -27.376,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Distance to nearest park (km); p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "NumWash",
   "taxonomy_id": "bathrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.094,
   "se": null,
   "t": 21.743,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Number of bathrooms; p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "GiZScore_C",
   "taxonomy_id": "neighbourhood_amenities",
   "x_transform": "level",
   "x_unit": "index",
   "beta": 0.083,
   "se": null,
   "t": 17.104,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Getis-Ord Gi* z-score of social-media check-in activity at commercial/business facilities (hot-spot degree of activity); p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "DHospital",
   "taxonomy_id": "hospital_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.094,
   "se": null,
   "t": -24.942,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Distance to nearest hospital (km); p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "SPrimary",
   "taxonomy_id": "school_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": 0.08,
   "se": null,
   "t": 21.966,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Distance to nearest primary school (km); printed as SPrimary (DSprimary in Table 1); p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "Floor",
   "taxonomy_id": "floor_level",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.063,
   "se": null,
   "t": 20.077,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Floor on which the unit is situated; p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "GiZScore_G",
   "taxonomy_id": "green_space",
   "x_transform": "level",
   "x_unit": "index",
   "beta": 0.134,
   "se": null,
   "t": 24.466,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Getis-Ord Gi* z-score of check-in activity in green space (degree of activity); p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "DBus",
   "taxonomy_id": "transit_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.049,
   "se": null,
   "t": -14.273,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Distance to nearest bus station (km); p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "DSub",
   "taxonomy_id": "transit_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.049,
   "se": null,
   "t": -11.417,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Distance to nearest metro station (km); p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "Area",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "m2",
   "beta": 0.031,
   "se": null,
   "t": 6.907,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Living area in m2 (coefficient as printed; interpreted by authors as semi-elasticity per unit); p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T4-c1",
   "var_name_printed": "RGreen",
   "taxonomy_id": "green_space",
   "x_transform": "level",
   "x_unit": "share",
   "beta": 0.023,
   "se": null,
   "t": 6.854,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 13,
   "confidence": "high",
   "notes": "Green space ratio of the estate (%); p-value printed as .000; *** significant at 1%"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "Floor",
   "taxonomy_id": "floor_level",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.040169,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -0.35291, lower quartile 0.031246, median 0.040169 (recorded), upper quartile 0.056628, max 0.339561; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "NumBed",
   "taxonomy_id": "bedrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.040887,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -0.66773, lower quartile -0.02149, median 0.040887 (recorded), upper quartile 0.128011, max 0.493299; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "NumWash",
   "taxonomy_id": "bathrooms",
   "x_transform": "level",
   "x_unit": "count",
   "beta": 0.022523,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -0.64065, lower quartile -0.0432, median 0.022523 (recorded), upper quartile 0.06847, max 0.358014; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "Area",
   "taxonomy_id": "living_area",
   "x_transform": "level",
   "x_unit": "m2",
   "beta": 0.074358,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -0.68338, lower quartile -0.01717, median 0.074358 (recorded), upper quartile 0.142633, max 1.335995; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "RPlot",
   "taxonomy_id": "density",
   "x_transform": "level",
   "x_unit": "index",
   "beta": -0.1074,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -10.9418, lower quartile -0.5452, median -0.1074 (recorded), upper quartile 0.145695, max 1.900368; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "RGreen",
   "taxonomy_id": "green_space",
   "x_transform": "level",
   "x_unit": "share",
   "beta": 0.089782,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -3.84742, lower quartile -0.0312, median 0.089782 (recorded), upper quartile 0.399657, max 1.858314; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "Fee",
   "taxonomy_id": "other",
   "x_transform": "level",
   "x_unit": "currency",
   "beta": 0.25459,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -2.68112, lower quartile 0.015945, median 0.25459 (recorded), upper quartile 0.621551, max 4.052185; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "DSub",
   "taxonomy_id": "transit_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.02085,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -12.302, lower quartile -0.40319, median -0.02085 (recorded), upper quartile 0.563174, max 15.22164; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "DBus",
   "taxonomy_id": "transit_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.03028,
   "se": null,
   "t": null,
   "p": 0.004,
   "p_stars": "**",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -4.17797, lower quartile -0.35394, median -0.03028 (recorded), upper quartile 0.509983, max 23.5197; p-value .004; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "DSnursery",
   "taxonomy_id": "school_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.03278,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -18.9376, lower quartile -0.1124, median -0.03278 (recorded), upper quartile 0.158163, max 4.604339; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "DSprimary",
   "taxonomy_id": "school_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": 0.017652,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -12.4242, lower quartile -0.13258, median 0.017652 (recorded), upper quartile 0.261109, max 2.282185; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "DSmiddle",
   "taxonomy_id": "school_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": 0.017384,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -3.55686, lower quartile -0.41095, median 0.017384 (recorded), upper quartile 0.249635, max 14.10076; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "DHospital",
   "taxonomy_id": "hospital_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.12827,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -4.868, lower quartile -0.62254, median -0.12827 (recorded), upper quartile 0.300655, max 5.447187; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "DPark",
   "taxonomy_id": "green_space",
   "x_transform": "level",
   "x_unit": "km",
   "beta": 0.012992,
   "se": null,
   "t": null,
   "p": 0.855,
   "p_stars": "",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -2.27624, lower quartile -0.07367, median 0.012992 (recorded), upper quartile 0.328673, max 11.93626; p-value .855; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "DCBD",
   "taxonomy_id": "cbd_distance",
   "x_transform": "level",
   "x_unit": "km",
   "beta": -0.09705,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -16.3229, lower quartile -0.74499, median -0.09705 (recorded), upper quartile 0.430907, max 1.94271; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "GiZScore_G",
   "taxonomy_id": "green_space",
   "x_transform": "level",
   "x_unit": "index",
   "beta": -0.1252,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -11.9198, lower quartile -2.41877, median -0.1252 (recorded), upper quartile 0.179357, max 4.508242; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  },
  {
   "model_id": "T5-c1",
   "var_name_printed": "GiZScore_C",
   "taxonomy_id": "neighbourhood_amenities",
   "x_transform": "level",
   "x_unit": "index",
   "beta": 0.463302,
   "se": null,
   "t": null,
   "p": 0.0,
   "p_stars": "***",
   "ci_lo": null,
   "ci_hi": null,
   "page": 14,
   "confidence": "medium",
   "notes": "GWR local coefficient summary: min -9.16523, lower quartile 0.015567, median 0.463302 (recorded), upper quartile 2.229864, max 11.68491; p-value .000; RPlot = plot (floor-area) ratio mapped to density; Fee = property management fee; DSnursery = distance to nursery school"
  }
 ]
}