1{2 "record_id": "1956ccee53765fb417ccdc3f95db189441def931",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "Analyzing the Impact of Accessibility on Residential Property Price: A Case study of Hanoi's Central Districts",7 "year": 2025,8 "doi": "10.64711/dq21w997",9 "country": "Vietnam",10 "region_city": "Hanoi, 12 central districts",11 "sample_start": 2024,12 "sample_end": 2025,13 "property_type": "mixed",14 "price_type": "listing",15 "data_source": "batdongsan.com.vn verified listings by professional brokers, Nov 2024-Mar 2025 (1,545 properties; houses and apartments) + OpenStreetMap amenities via QuickOSM",16 "document_type": "journal",17 "estimators": [18 "OLS",19 "GWR"20 ],21 "spatial_method": "GWR (ArcGIS, AIC bandwidth)",22 "time_fe": false,23 "location_fe": false,24 "se_type": "robust",25 "n_obs_total": 1545,26 "ai_methods": [],27 "notes": "VNU Journal of Interdisciplinary Sciences and Arts 1(2), 81-107. Accessibility-only hedonic model: dependent variable is listed price per m2 (million VND/m2) in levels; regressors are seven straight-line distances in metres. Coefficients are monetary (million VND per m2 per metre). Tables 2-3 are embedded as images in the PDF (read visually)."28 },29 "models": [30 {31 "model_id": "T2-OLS",32 "table": "2",33 "column": "Coefficient",34 "page": 15,35 "dep_var": "Property price per m2 (PRICE, million VND/m2)",36 "dep_transform": "per_m2",37 "estimator": "OLS",38 "n_obs": 1545,39 "r2": null,40 "se_or_t_in_parentheses": "se",41 "sample_subset": "1,545 verified listings, 12 central districts of Hanoi, Nov 2024-Mar 2025",42 "notes": "Dependent variable in levels (price per m2, million VND, mean 256.89). Adjusted R2 = 0.163853 (R2 not printed). Koenker BP = 31.6 (heteroskedastic) so robust p-values reported. Only 7 distance variables (no structural characteristics beyond the per-m2 normalisation). Intercept 441.542."43 },44 {45 "model_id": "T3-GWR-mean",46 "table": "3",47 "column": "Mean",48 "page": 16,49 "dep_var": "Property price per m2 (PRICE, million VND/m2)",50 "dep_transform": "per_m2",51 "estimator": "GWR",52 "n_obs": 1545,53 "r2": null,54 "se_or_t_in_parentheses": "none",55 "sample_subset": "same sample",56 "notes": "GWR (ArcGIS default bandwidth selection, AIC). Table 3 reports Min, Q1, Mean, Q3, Max of local coefficients; mean extracted. Adjusted R2 = 0.192015, RSS 52241222.924, AICc 20530.28."57 }58 ],59 "coefficients": [60 {61 "model_id": "T2-OLS",62 "var_name_printed": "SDHOS: Shortest distance to the nearest hospital",63 "taxonomy_id": "hospital_distance",64 "x_transform": "level",65 "x_unit": "m",66 "beta": -0.031,67 "se": 0.01,68 "t": -3.258,69 "p": 0.001,70 "p_stars": "***",71 "ci_lo": null,72 "ci_hi": null,73 "page": 15,74 "confidence": "high",75 "notes": "Table 2 (OLS, ArcGIS): Coefficient, Std. Error, t-Value, p-Value (robust probability). Stars: *** 1%, ** 5%. shortest Euclidean distance to nearest hospital (m)"76 },77 {78 "model_id": "T2-OLS",79 "var_name_printed": "SDPRK: Shortest distance to the nearest park or green space",80 "taxonomy_id": "green_space",81 "x_transform": "level",82 "x_unit": "m",83 "beta": 0.036,84 "se": 0.012,85 "t": 3.086,86 "p": 0.0,87 "p_stars": "***",88 "ci_lo": null,89 "ci_hi": null,90 "page": 15,91 "confidence": "high",92 "notes": "Table 2 (OLS, ArcGIS): Coefficient, Std. Error, t-Value, p-Value (robust probability). Stars: *** 1%, ** 5%. shortest distance to nearest park or green space (m); printed robust p-value does not match the printed t-value (recorded as printed)"93 },94 {95 "model_id": "T2-OLS",96 "var_name_printed": "SDSCH: Shortest distance to the nearest school",97 "taxonomy_id": "school_distance",98 "x_transform": "level",99 "x_unit": "m",100 "beta": 0.036,101 "se": 0.015,102 "t": 2.4,103 "p": 0.002,104 "p_stars": "**",105 "ci_lo": null,106 "ci_hi": null,107 "page": 15,108 "confidence": "high",109 "notes": "Table 2 (OLS, ArcGIS): Coefficient, Std. Error, t-Value, p-Value (robust probability). Stars: *** 1%, ** 5%. shortest distance to nearest school (primary/secondary/high) (m); printed robust p-value does not match the printed t-value (recorded as printed)"110 },111 {112 "model_id": "T2-OLS",113 "var_name_printed": "SDUNI: Shortest distance to the nearest university",114 "taxonomy_id": "university_distance",115 "x_transform": "level",116 "x_unit": "m",117 "beta": -0.014,118 "se": 0.005,119 "t": -3.034,120 "p": 0.0,121 "p_stars": "***",122 "ci_lo": null,123 "ci_hi": null,124 "page": 15,125 "confidence": "high",126 "notes": "Table 2 (OLS, ArcGIS): Coefficient, Std. Error, t-Value, p-Value (robust probability). Stars: *** 1%, ** 5%. shortest distance to nearest university (m)"127 },128 {129 "model_id": "T2-OLS",130 "var_name_printed": "SDSHP: Shortest distance to the nearest shopping center",131 "taxonomy_id": "commercial_distance",132 "x_transform": "level",133 "x_unit": "m",134 "beta": 0.008,135 "se": 0.008,136 "t": 1.024,137 "p": 0.257,138 "p_stars": "",139 "ci_lo": null,140 "ci_hi": null,141 "page": 15,142 "confidence": "high",143 "notes": "Table 2 (OLS, ArcGIS): Coefficient, Std. Error, t-Value, p-Value (robust probability). Stars: *** 1%, ** 5%. shortest distance to nearest shopping centre (m)"144 },145 {146 "model_id": "T2-OLS",147 "var_name_printed": "SDCENL: Shortest distance to the nearest local People's committee location",148 "taxonomy_id": null,149 "x_transform": "level",150 "x_unit": "m",151 "beta": -0.015,152 "se": 0.004,153 "t": -4.385,154 "p": 0.0,155 "p_stars": "***",156 "ci_lo": null,157 "ci_hi": null,158 "page": 15,159 "confidence": "high",160 "notes": "Table 2 (OLS, ArcGIS): Coefficient, Std. Error, t-Value, p-Value (robust probability). Stars: *** 1%, ** 5%. shortest distance to nearest district-level People's Committee building (local administrative sub-centre); no exact taxonomy leaf"161 },162 {163 "model_id": "T2-OLS",164 "var_name_printed": "SDCEN: Shortest distance to Hanoi People's committee location",165 "taxonomy_id": "cbd_distance",166 "x_transform": "level",167 "x_unit": "m",168 "beta": -0.02,169 "se": 0.002,170 "t": -10.977,171 "p": 0.0,172 "p_stars": "***",173 "ci_lo": null,174 "ci_hi": null,175 "page": 15,176 "confidence": "high",177 "notes": "Table 2 (OLS, ArcGIS): Coefficient, Std. Error, t-Value, p-Value (robust probability). Stars: *** 1%, ** 5%. shortest distance to Hanoi People's Committee building (city centre) (m)"178 },179 {180 "model_id": "T3-GWR-mean",181 "var_name_printed": "SDHOS: Shortest distance to the nearest hospital",182 "taxonomy_id": "hospital_distance",183 "x_transform": "level",184 "x_unit": "m",185 "beta": -0.041,186 "se": null,187 "t": null,188 "p": null,189 "p_stars": "",190 "ci_lo": null,191 "ci_hi": null,192 "page": 16,193 "confidence": "medium",194 "notes": "Mean of local GWR coefficients (Table 3); Min -0.09, Q1 -0.061, Q3 -0.023, Max 0.006; no SE or significance printed. shortest Euclidean distance to nearest hospital (m)"195 },196 {197 "model_id": "T3-GWR-mean",198 "var_name_printed": "SDPRK: Shortest distance to the nearest park or green space",199 "taxonomy_id": "green_space",200 "x_transform": "level",201 "x_unit": "m",202 "beta": -0.01,203 "se": null,204 "t": null,205 "p": null,206 "p_stars": "",207 "ci_lo": null,208 "ci_hi": null,209 "page": 16,210 "confidence": "medium",211 "notes": "Mean of local GWR coefficients (Table 3); Min -0.053, Q1 -0.03, Q3 0.008, Max 0.04; no SE or significance printed. shortest distance to nearest park or green space (m)"212 },213 {214 "model_id": "T3-GWR-mean",215 "var_name_printed": "SDSCH: Shortest distance to the nearest school",216 "taxonomy_id": "school_distance",217 "x_transform": "level",218 "x_unit": "m",219 "beta": 0.013,220 "se": null,221 "t": null,222 "p": null,223 "p_stars": "",224 "ci_lo": null,225 "ci_hi": null,226 "page": 16,227 "confidence": "medium",228 "notes": "Mean of local GWR coefficients (Table 3); Min -0.082, Q1 -0.015, Q3 0.039, Max 0.088; no SE or significance printed. shortest distance to nearest school (primary/secondary/high) (m)"229 },230 {231 "model_id": "T3-GWR-mean",232 "var_name_printed": "SDUNI: Shortest distance to the nearest university",233 "taxonomy_id": "university_distance",234 "x_transform": "level",235 "x_unit": "m",236 "beta": -0.003,237 "se": null,238 "t": null,239 "p": null,240 "p_stars": "",241 "ci_lo": null,242 "ci_hi": null,243 "page": 16,244 "confidence": "medium",245 "notes": "Mean of local GWR coefficients (Table 3); Min -0.028, Q1 -0.009, Q3 0.003, Max 0.042; no SE or significance printed. shortest distance to nearest university (m)"246 },247 {248 "model_id": "T3-GWR-mean",249 "var_name_printed": "SDSHP: Shortest distance to the nearest shopping center",250 "taxonomy_id": "commercial_distance",251 "x_transform": "level",252 "x_unit": "m",253 "beta": 0.019,254 "se": null,255 "t": null,256 "p": null,257 "p_stars": "",258 "ci_lo": null,259 "ci_hi": null,260 "page": 16,261 "confidence": "medium",262 "notes": "Mean of local GWR coefficients (Table 3); Min -0.012, Q1 0.004, Q3 0.027, Max 0.048; no SE or significance printed. shortest distance to nearest shopping centre (m)"263 },264 {265 "model_id": "T3-GWR-mean",266 "var_name_printed": "SDCENL: Shortest distance to the nearest local People's committee location",267 "taxonomy_id": null,268 "x_transform": "level",269 "x_unit": "m",270 "beta": -0.01,271 "se": null,272 "t": null,273 "p": null,274 "p_stars": "",275 "ci_lo": null,276 "ci_hi": null,277 "page": 16,278 "confidence": "medium",279 "notes": "Mean of local GWR coefficients (Table 3); Min -0.029, Q1 -0.024, Q3 0.008, Max 0.012; no SE or significance printed. shortest distance to nearest district-level People's Committee building (local administrative sub-centre); no exact taxonomy leaf"280 },281 {282 "model_id": "T3-GWR-mean",283 "var_name_printed": "SDCEN: Shortest distance to Hanoi People's committee location",284 "taxonomy_id": "cbd_distance",285 "x_transform": "level",286 "x_unit": "m",287 "beta": -0.03,288 "se": null,289 "t": null,290 "p": null,291 "p_stars": "",292 "ci_lo": null,293 "ci_hi": null,294 "page": 16,295 "confidence": "medium",296 "notes": "Mean of local GWR coefficients (Table 3); Min -0.047, Q1 -0.035, Q3 -0.025, Max -0.016; no SE or significance printed. shortest distance to Hanoi People's Committee building (city centre) (m)"297 }298 ]299}