1{2 "record_id": "e075c6fe2099973f79200c3fb2110ef7bfef767a",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "Application of the hedonic pricing model to real estate valuation in Hanoi, Vietnam",7 "year": 2024,8 "doi": "10.30574/wjarr.2024.24.2.3458",9 "country": "Vietnam",10 "region_city": "Hanoi",11 "sample_start": 2023,12 "sample_end": 2024,13 "property_type": "unknown",14 "price_type": "listing",15 "data_source": "195 asking-price listings scraped from chotot.com and batdongsan.com.vn, October 2023 - February 2024",16 "document_type": "journal",17 "estimators": ["OLS"],18 "spatial_method": "none",19 "time_fe": false,20 "location_fe": false,21 "se_type": "unknown",22 "n_obs_total": 195,23 "ai_methods": [],24 "notes": "LOW-QUALITY SOURCE. Table 4 (p.6) row labels (AREA, DIENTICH, BEDROOMS, BATHROOMS, CENTER, TYPE, AMENITIES) are inconsistent with the model specification (p.4: AREA, BEDROOMS, BATHROOMS, CITY_CENTER, TYPE, AMENITIES, STRUCTURE) and with the author's own fitted equation on p.6 (PRICE = 17.093 + 0.001 AREA + 0.065 BEDROOMS - 0.020 CITY_CENTER + 0.148 TYPE + 0.087 AMENITIES + 0.050 STRUCTURE; BATHROOMS insignificant). The row labels appear shifted by one ('DIENTICH' = Vietnamese 'dien tich' = area). Coefficients recorded here follow the author's equation/text mapping; all flagged confidence low and must not enter the primary synthesis. Dependent variable declared as 'housing price (in billion per square meter)' (VND), but the intercept of 17.093 suggests a log transformation; dep_transform set to 'other'. Only coefficient and p-value printed (column 'P>|z|'), no SE. Star legend ** 5%, *** 1%."25 },26 "models": [27 {"model_id": "T4-c1", "table": "4", "column": "Coef.", "page": 6, "dep_var": "House price (PRICE), declared 'billion [VND] per square meter'", "dep_transform": "other",28 "estimator": "OLS", "n_obs": 195, "r2": 0.8559, "se_or_t_in_parentheses": "p", "sample_subset": "All 195 listings; F(8,196)=276.08"}29 ],30 "coefficients": [31 {"model_id": "T4-c1", "var_name_printed": "AREA", "taxonomy_id": "living_area", "x_transform": "level", "x_unit": "m2", "beta": 0.001, "se": null, "t": null, "p": 0.023, "p_stars": "**", "ci_lo": null, "ci_hi": null, "page": 6, "confidence": "low", "notes": "House area (m2); table row 'AREA' and text agree"},32 {"model_id": "T4-c1", "var_name_printed": "BEDROOMS (table row labelled DIENTICH)", "taxonomy_id": "bedrooms", "x_transform": "level", "x_unit": "count", "beta": 0.065, "se": null, "t": null, "p": 0.000, "p_stars": "***", "ci_lo": null, "ci_hi": null, "page": 6, "confidence": "low", "notes": "Text/equation attribute 0.065 to BEDROOMS; table row label is 'DIENTICH'"},33 {"model_id": "T4-c1", "var_name_printed": "BATHROOMS (table row labelled BEDROOMS)", "taxonomy_id": "bathrooms", "x_transform": "level", "x_unit": "count", "beta": 0.003, "se": null, "t": null, "p": 0.640, "p_stars": "", "ci_lo": null, "ci_hi": null, "page": 6, "confidence": "low", "notes": "Text says BATHROOMS not significant; table row label is 'BEDROOMS'"},34 {"model_id": "T4-c1", "var_name_printed": "CITY_CENTER (table row labelled BATHROOMS)", "taxonomy_id": "cbd_distance", "x_transform": "level", "x_unit": "km", "beta": -0.020, "se": null, "t": null, "p": 0.000, "p_stars": "***", "ci_lo": null, "ci_hi": null, "page": 6, "confidence": "low", "notes": "Distance to city centre (km); text/equation attribute -0.020 to CITY_CENTER; table row label is 'BATHROOMS'"},35 {"model_id": "T4-c1", "var_name_printed": "TYPE (table row labelled CENTER)", "taxonomy_id": "other", "x_transform": "binary", "x_unit": "binary", "beta": 0.148, "se": null, "t": null, "p": 0.036, "p_stars": "**", "ci_lo": null, "ci_hi": null, "page": 6, "confidence": "low", "notes": "Street-frontage house dummy (1 = street front, 0 = alley); table row label is 'CENTER'"},36 {"model_id": "T4-c1", "var_name_printed": "AMENITIES (table row labelled TYPE)", "taxonomy_id": "neighbourhood_amenities", "x_transform": "binary", "x_unit": "binary", "beta": 0.087, "se": null, "t": null, "p": 0.000, "p_stars": "***", "ci_lo": null, "ci_hi": null, "page": 6, "confidence": "low", "notes": "Dummy: local amenities nearby (parks, plazas, schools, shopping centres); table row label is 'TYPE'"},37 {"model_id": "T4-c1", "var_name_printed": "STRUCTURE (table row labelled AMENITIES)", "taxonomy_id": "condition", "x_transform": "binary", "x_unit": "binary", "beta": 0.050, "se": null, "t": null, "p": 0.000, "p_stars": "***", "ci_lo": null, "ci_hi": null, "page": 6, "confidence": "low", "notes": "Dummy: modern structure (newly built / modern design vs outdated); table row label is 'AMENITIES'"}38 ]39}40