1{2 "record_id": "8acb5243fed06bb1f23f1332908a7f46169463e4",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "Willingness to Pay for Access to Piped Water using Hedonic Pricing Model",7 "year": 2022,8 "doi": "10.15408/etk.v21i1.16984",9 "country": "Pakistan",10 "region_city": "Pakistan (urban and rural, four provinces)",11 "sample_start": 2013,12 "sample_end": 2014,13 "property_type": "mixed",14 "price_type": "rent",15 "data_source": "PSLM 2013-14 household survey (15,884 households); self-reported monthly rental value of the dwelling (owners and renters)",16 "document_type": "journal",17 "estimators": [18 "OLS"19 ],20 "spatial_method": "none (province and region dummies)",21 "time_fe": false,22 "location_fe": true,23 "se_type": "unknown",24 "n_obs_total": 15884,25 "ai_methods": [],26 "notes": "WARNING: the full regression table referred to in the text ('Table 2 indicates the estimation results') is NOT printed in the published PDF; the only printed coefficients are the piped-water-connection coefficients in Table 4 (p. 8, WTP calculation, four subsamples: rural, urban, rented, owned) and, in the text (p. 8), the urban-model coefficients for number of rooms (0.20409) and toilet inside the house (0.06167). No SEs, t or stars available; the text states 'all variables are significant at 5%' except a few. Semi-log model: dependent variable = log of monthly rental value (PKR), interpreted as exp(beta)-1. Sub-sample sizes not printed (urban 5,149 and rural 10,735 households in Table 3 descriptives). Quality: low (survey-reported rents, missing table)."27 },28 "models": [29 {30 "model_id": "T4-rural",31 "table": "4",32 "column": "Rural region",33 "page": 8,34 "dep_var": "log of monthly rental value of the house (PKR)",35 "dep_transform": "log",36 "estimator": "OLS",37 "n_obs": 10735,38 "r2": null,39 "se_or_t_in_parentheses": "none",40 "sample_subset": "Rural region subsample; semi-log hedonic rent model with house, neighbourhood, sanitation, province and region controls; only the piped-water coefficient is printed (Table 4)"41 },42 {43 "model_id": "T4-urban",44 "table": "4",45 "column": "Urban region",46 "page": 8,47 "dep_var": "log of monthly rental value of the house (PKR)",48 "dep_transform": "log",49 "estimator": "OLS",50 "n_obs": 5149,51 "r2": null,52 "se_or_t_in_parentheses": "none",53 "sample_subset": "Urban region subsample; semi-log hedonic rent model with house, neighbourhood, sanitation, province and region controls; only the piped-water coefficient is printed (Table 4)"54 },55 {56 "model_id": "T4-rented",57 "table": "4",58 "column": "Rented houses",59 "page": 8,60 "dep_var": "log of monthly rental value of the house (PKR)",61 "dep_transform": "log",62 "estimator": "OLS",63 "n_obs": null,64 "r2": null,65 "se_or_t_in_parentheses": "none",66 "sample_subset": "Rented houses subsample; semi-log hedonic rent model with house, neighbourhood, sanitation, province and region controls; only the piped-water coefficient is printed (Table 4)"67 },68 {69 "model_id": "T4-owned",70 "table": "4",71 "column": "Owner-occupied houses",72 "page": 8,73 "dep_var": "log of monthly rental value of the house (PKR)",74 "dep_transform": "log",75 "estimator": "OLS",76 "n_obs": null,77 "r2": null,78 "se_or_t_in_parentheses": "none",79 "sample_subset": "Owner-occupied houses subsample; semi-log hedonic rent model with house, neighbourhood, sanitation, province and region controls; only the piped-water coefficient is printed (Table 4)"80 }81 ],82 "coefficients": [83 {84 "model_id": "T4-rural",85 "var_name_printed": "Drinking-Water Characteristics (piped water connection)",86 "taxonomy_id": "public_services",87 "x_transform": "binary",88 "x_unit": "binary",89 "beta": 0.0238,90 "se": null,91 "t": null,92 "p": null,93 "p_stars": "",94 "ci_lo": null,95 "ci_hi": null,96 "page": 8,97 "confidence": "medium",98 "notes": "Dummy = 1 if household has a piped water connection inside the house; coefficient reproduced in the WTP table (Table 4), no SE/t printed; text claims significance at 5%"99 },100 {101 "model_id": "T4-urban",102 "var_name_printed": "Drinking-Water Characteristics (piped water connection)",103 "taxonomy_id": "public_services",104 "x_transform": "binary",105 "x_unit": "binary",106 "beta": 0.07087,107 "se": null,108 "t": null,109 "p": null,110 "p_stars": "",111 "ci_lo": null,112 "ci_hi": null,113 "page": 8,114 "confidence": "medium",115 "notes": "Dummy = 1 if household has a piped water connection inside the house; coefficient reproduced in the WTP table (Table 4), no SE/t printed; text claims significance at 5%"116 },117 {118 "model_id": "T4-rented",119 "var_name_printed": "Drinking-Water Characteristics (piped water connection)",120 "taxonomy_id": "public_services",121 "x_transform": "binary",122 "x_unit": "binary",123 "beta": 0.03192,124 "se": null,125 "t": null,126 "p": null,127 "p_stars": "",128 "ci_lo": null,129 "ci_hi": null,130 "page": 8,131 "confidence": "medium",132 "notes": "Dummy = 1 if household has a piped water connection inside the house; coefficient reproduced in the WTP table (Table 4), no SE/t printed; text claims significance at 5%"133 },134 {135 "model_id": "T4-owned",136 "var_name_printed": "Drinking-Water Characteristics (piped water connection)",137 "taxonomy_id": "public_services",138 "x_transform": "binary",139 "x_unit": "binary",140 "beta": 0.05122,141 "se": null,142 "t": null,143 "p": null,144 "p_stars": "",145 "ci_lo": null,146 "ci_hi": null,147 "page": 8,148 "confidence": "medium",149 "notes": "Dummy = 1 if household has a piped water connection inside the house; coefficient reproduced in the WTP table (Table 4), no SE/t printed; text claims significance at 5%"150 },151 {152 "model_id": "T4-urban",153 "var_name_printed": "No of rooms",154 "taxonomy_id": "bedrooms",155 "x_transform": "level",156 "x_unit": "count",157 "beta": 0.20409,158 "se": null,159 "t": null,160 "p": null,161 "p_stars": "",162 "ci_lo": null,163 "ci_hi": null,164 "page": 8,165 "confidence": "medium",166 "notes": "Number of rooms (not bedrooms); coefficient quoted in the text for the urban model (exp(0.20409)=1.26327); no SE/t"167 },168 {169 "model_id": "T4-urban",170 "var_name_printed": "Toilet facility inside house",171 "taxonomy_id": "other",172 "x_transform": "binary",173 "x_unit": "binary",174 "beta": 0.06167,175 "se": null,176 "t": null,177 "p": null,178 "p_stars": "",179 "ci_lo": null,180 "ci_hi": null,181 "page": 8,182 "confidence": "medium",183 "notes": "Dummy for toilet inside the house (sanitation); coefficient quoted in the text for the urban model (exp(0.06167)=1.07315); no SE/t"184 }185 ]186}