1{2 "record_id": "0e568775e77ac2d90b96f6f8ecad954135ed43b0",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "Listing price estimation of apartments: A generalised linear model",7 "year": 2019,8 "doi": "10.4102/jef.v12i1.204",9 "country": "South Africa",10 "region_city": "KwaZulu-Natal (Ballito, Durban Central, Umhlanga)",11 "sample_start": 2016,12 "sample_end": 2016,13 "property_type": "condo_apartment",14 "price_type": "listing",15 "data_source": "Private Property (Pty) Ltd, snapshot of apartment listings as at 23 February 2016",16 "document_type": "journal",17 "estimators": [18 "other"19 ],20 "spatial_method": "suburb dummies; Mantel test for residual spatial autocorrelation",21 "time_fe": false,22 "location_fe": true,23 "se_type": "OLS",24 "n_obs_total": 1314,25 "ai_methods": [],26 "notes": "Estimator = generalised linear model, gamma family, log link (IRLS/ML). SE column labelled 'standard deviation' in table footnote; treated as model-based SEs. Star legend: *** p<0.001, ** p<0.01, * p<0.05. Cross-section of listings (single date)."27 },28 "models": [29 {30 "model_id": "T4-c1",31 "table": "4",32 "column": "1",33 "page": 7,34 "dep_var": "listing price (ZAR), gamma GLM with log link",35 "dep_transform": "other",36 "estimator": "other",37 "n_obs": 1314,38 "r2": null,39 "se_or_t_in_parentheses": "se",40 "sample_subset": "",41 "notes": "Gamma GLM with log link (coefficients interpretable as semi-elasticities of the arithmetic mean); 35 suburb dummies (reference Albert Park) not extracted; Table 5 reports bootstrap SEs for the same coefficients (log(Size) 0.033635, NumBaths 0.021085, NumBeds 0.019742), not duplicated here"42 }43 ],44 "coefficients": [45 {46 "model_id": "T4-c1",47 "var_name_printed": "log(Size)",48 "taxonomy_id": "living_area",49 "x_transform": "log",50 "x_unit": "m2",51 "beta": 0.73296,52 "se": 0.03107,53 "t": null,54 "p": null,55 "p_stars": "***",56 "ci_lo": null,57 "ci_hi": null,58 "page": 7,59 "confidence": "high",60 "notes": "floor area in square metres, log"61 },62 {63 "model_id": "T4-c1",64 "var_name_printed": "NumBaths",65 "taxonomy_id": "bathrooms",66 "x_transform": "level",67 "x_unit": "count",68 "beta": 0.20298,69 "se": 0.01878,70 "t": null,71 "p": null,72 "p_stars": "***",73 "ci_lo": null,74 "ci_hi": null,75 "page": 7,76 "confidence": "high",77 "notes": ""78 },79 {80 "model_id": "T4-c1",81 "var_name_printed": "NumBeds",82 "taxonomy_id": "bedrooms",83 "x_transform": "level",84 "x_unit": "count",85 "beta": 0.03851,86 "se": 0.0183,87 "t": null,88 "p": null,89 "p_stars": "*",90 "ci_lo": null,91 "ci_hi": null,92 "page": 7,93 "confidence": "high",94 "notes": ""95 }96 ]97}