1{2 "record_id": "baaee624057dd67c85185a4177e6d00e5b13c4a2",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "The Hedonic Pricing Model Applied to the Housing Market",7 "year": 2020,8 "doi": "10.35808/ijeba/526",9 "country": "Vietnam",10 "region_city": "Ho Chi Minh City and Ha Noi",11 "sample_start": 2019,12 "sample_end": 2019,13 "property_type": "single_family",14 "price_type": "transaction",15 "data_source": "Author survey of 205 houses in housing projects successfully traded in Ho Chi Minh City and Ha Noi in the first six months of 2019",16 "document_type": "journal",17 "estimators": [18 "OLS"19 ],20 "spatial_method": "none",21 "time_fe": false,22 "location_fe": false,23 "se_type": "robust",24 "n_obs_total": 205,25 "ai_methods": [],26 "notes": "Dependent variable PRICE = house price per square metre (currency unit not stated; constant 17.093 suggests million VND per m2) in levels. Single OLS model with White heteroskedasticity-robust statistics (Table 4, p.8): coefficients and p-values only (no SE or t printed; se recorded null, p recorded). Stars: ** 5%, *** 1%. Property type: houses in housing projects (garden dummy, pool) -- treated as single_family. City dummy not included."27 },28 "models": [29 {30 "model_id": "T4-c1",31 "table": "4",32 "column": "1",33 "page": 8,34 "dep_var": "house price per square metre (PRICE)",35 "dep_transform": "per_m2",36 "estimator": "OLS",37 "n_obs": 205,38 "r2": 0.8559,39 "se_or_t_in_parentheses": "p",40 "sample_subset": "All 205 surveyed houses; OLS with White-robust inference; F(8,196)=276.08"41 }42 ],43 "coefficients": [44 {45 "model_id": "T4-c1",46 "var_name_printed": "SIZE",47 "taxonomy_id": "living_area",48 "x_transform": "level",49 "x_unit": "m2",50 "beta": 0.001,51 "se": null,52 "t": null,53 "p": 0.023,54 "p_stars": "**",55 "ci_lo": null,56 "ci_hi": null,57 "page": 8,58 "confidence": "high",59 "notes": "House size in square metres; p-value column P>|z|; no SE printed"60 },61 {62 "model_id": "T4-c1",63 "var_name_printed": "BEDROOMS",64 "taxonomy_id": "bedrooms",65 "x_transform": "level",66 "x_unit": "count",67 "beta": 0.065,68 "se": null,69 "t": null,70 "p": 0.0,71 "p_stars": "***",72 "ci_lo": null,73 "ci_hi": null,74 "page": 8,75 "confidence": "high",76 "notes": "Number of bedrooms; p-value column P>|z|; no SE printed"77 },78 {79 "model_id": "T4-c1",80 "var_name_printed": "BATHROOMS",81 "taxonomy_id": "bathrooms",82 "x_transform": "level",83 "x_unit": "count",84 "beta": 0.003,85 "se": null,86 "t": null,87 "p": 0.64,88 "p_stars": "",89 "ci_lo": null,90 "ci_hi": null,91 "page": 8,92 "confidence": "high",93 "notes": "Number of bathrooms; p-value column P>|z|; no SE printed"94 },95 {96 "model_id": "T4-c1",97 "var_name_printed": "CENTER",98 "taxonomy_id": "cbd_distance",99 "x_transform": "level",100 "x_unit": "km",101 "beta": -0.02,102 "se": null,103 "t": null,104 "p": 0.0,105 "p_stars": "***",106 "ci_lo": null,107 "ci_hi": null,108 "page": 8,109 "confidence": "high",110 "notes": "Distance to the city centre in kilometres; p-value column P>|z|; no SE printed"111 },112 {113 "model_id": "T4-c1",114 "var_name_printed": "TYPE",115 "taxonomy_id": "garden",116 "x_transform": "dummy",117 "x_unit": "binary",118 "beta": 0.048,119 "se": null,120 "t": null,121 "p": 0.036,122 "p_stars": "**",123 "ci_lo": null,124 "ci_hi": null,125 "page": 8,126 "confidence": "high",127 "notes": "1 if the house has a garden; p-value column P>|z|; no SE printed"128 },129 {130 "model_id": "T4-c1",131 "var_name_printed": "POOL",132 "taxonomy_id": "pool",133 "x_transform": "dummy",134 "x_unit": "binary",135 "beta": 0.002,136 "se": null,137 "t": null,138 "p": 0.709,139 "p_stars": "",140 "ci_lo": null,141 "ci_hi": null,142 "page": 8,143 "confidence": "high",144 "notes": "1 if the house has amenities such as a hot-tub and/or swimming pool; p-value column P>|z|; no SE printed"145 },146 {147 "model_id": "T4-c1",148 "var_name_printed": "PARK",149 "taxonomy_id": "neighbourhood_amenities",150 "x_transform": "dummy",151 "x_unit": "binary",152 "beta": 0.187,153 "se": null,154 "t": null,155 "p": 0.0,156 "p_stars": "***",157 "ci_lo": null,158 "ci_hi": null,159 "page": 8,160 "confidence": "high",161 "notes": "1 if local amenities (parks, squares, schools or shopping malls) nearby; p-value column P>|z|; no SE printed"162 },163 {164 "model_id": "T4-c1",165 "var_name_printed": "STRUCTURE",166 "taxonomy_id": "condition",167 "x_transform": "dummy",168 "x_unit": "binary",169 "beta": 0.05,170 "se": null,171 "t": null,172 "p": 0.0,173 "p_stars": "***",174 "ci_lo": null,175 "ci_hi": null,176 "page": 8,177 "confidence": "high",178 "notes": "1 if the structure is new and modern; p-value column P>|z|; no SE printed"179 }180 ]181}