1{2 "record_id": "35b0e34c43595f2139ae225aceb59ae4af4bb8da",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "Incentivizing the Public to Support Invasive Species Management: Eurasian Milfoil Reduces Lakefront Property Values",7 "year": 2014,8 "doi": "10.1371/journal.pone.0110458",9 "country": "United States",10 "region_city": "King County, Washington (41 lakes near Seattle)",11 "sample_start": 1995,12 "sample_end": 2006,13 "property_type": "single_family",14 "price_type": "transaction",15 "data_source": "1,258 lakeshore single-family sale transactions 1995-2006 (King County assessor records), 17 invaded and 24 uninvaded lakes",16 "document_type": "journal",17 "estimators": [18 "IV"19 ],20 "spatial_method": "none",21 "time_fe": false,22 "location_fe": false,23 "se_type": "unknown",24 "n_obs_total": 1258,25 "ai_methods": [],26 "notes": "Linear (level) hedonic 2SLS; dependent variable sales price in 2006 USD. Table 2 (p.4) reports the top three AICc-selected models; coefficients and SEs in separate columns, significance stars. Variables such as house age, frontage, boat launch, fish stocking and temperature were candidate/instrumental variables and do not appear in the reported models. No R2 printed. Mean sale price 502,313 USD."27 },28 "models": [29 {30 "model_id": "T2-c1",31 "table": "2",32 "column": "Model 1",33 "page": 4,34 "dep_var": "property sales price, land + house (2006 USD)",35 "dep_transform": "level",36 "estimator": "IV",37 "n_obs": 1258,38 "r2": null,39 "se_or_t_in_parentheses": "none",40 "sample_subset": "lakefront single-family sales, 41 lakes in King County WA, 1995-2006; two-stage least squares with milfoil presence endogenous; top-3 model by AICc (AICc 23.931, relative likelihood 1.0); n_obs from text (1,258 transactions), not printed in table"41 },42 {43 "model_id": "T2-c2",44 "table": "2",45 "column": "Model 2",46 "page": 4,47 "dep_var": "property sales price, land + house (2006 USD)",48 "dep_transform": "level",49 "estimator": "IV",50 "n_obs": 1258,51 "r2": null,52 "se_or_t_in_parentheses": "none",53 "sample_subset": "lakefront single-family sales, 41 lakes in King County WA, 1995-2006; two-stage least squares with milfoil presence endogenous; top-3 model by AICc (AICc 23.986, relative likelihood 0.969); n_obs from text (1,258 transactions), not printed in table"54 },55 {56 "model_id": "T2-c3",57 "table": "2",58 "column": "Model 3",59 "page": 4,60 "dep_var": "property sales price, land + house (2006 USD)",61 "dep_transform": "level",62 "estimator": "IV",63 "n_obs": 1258,64 "r2": null,65 "se_or_t_in_parentheses": "none",66 "sample_subset": "lakefront single-family sales, 41 lakes in King County WA, 1995-2006; two-stage least squares with milfoil presence endogenous; top-3 model by AICc (AICc 23.998, relative likelihood 0.963); n_obs from text (1,258 transactions), not printed in table"67 }68 ],69 "coefficients": [70 {71 "model_id": "T2-c1",72 "var_name_printed": "Milfoil presence",73 "taxonomy_id": "water_quality",74 "x_transform": "dummy",75 "x_unit": "binary",76 "beta": -94385.4,77 "se": 46712.9,78 "t": null,79 "p": null,80 "p_stars": "**",81 "ci_lo": null,82 "ci_hi": null,83 "page": 4,84 "confidence": "high",85 "notes": "presence of invasive Eurasian milfoil in the lake adjacent to the property (endogenous, instrumented by boat launch, fish stocking, water clarity, lake area, temperature); lake-level attribute; SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"86 },87 {88 "model_id": "T2-c1",89 "var_name_printed": "House size",90 "taxonomy_id": "living_area",91 "x_transform": "level",92 "x_unit": "m2",93 "beta": 2608.1,94 "se": 344.2,95 "t": null,96 "p": null,97 "p_stars": "***",98 "ci_lo": null,99 "ci_hi": null,100 "page": 4,101 "confidence": "high",102 "notes": "total living area in m2; coefficient in 2006 USD per m2; SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"103 },104 {105 "model_id": "T2-c1",106 "var_name_printed": "Parcel density",107 "taxonomy_id": "density",108 "x_transform": "level",109 "x_unit": "count",110 "beta": 102.8,111 "se": 70.3,112 "t": null,113 "p": null,114 "p_stars": "",115 "ci_lo": null,116 "ci_hi": null,117 "page": 4,118 "confidence": "high",119 "notes": "number of lakefront parcels per km2 (lake-level); SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"120 },121 {122 "model_id": "T2-c1",123 "var_name_printed": "Lake area",124 "taxonomy_id": "other",125 "x_transform": "level",126 "x_unit": "km2",127 "beta": 209407.8,128 "se": 81848.0,129 "t": null,130 "p": null,131 "p_stars": "**",132 "ci_lo": null,133 "ci_hi": null,134 "page": 4,135 "confidence": "high",136 "notes": "surface area of the adjacent lake in km2 (lake-level attribute); SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"137 },138 {139 "model_id": "T2-c1",140 "var_name_printed": "Water clarity",141 "taxonomy_id": "water_quality",142 "x_transform": "level",143 "x_unit": "m",144 "beta": -7430.3,145 "se": 11160.2,146 "t": null,147 "p": null,148 "p_stars": "",149 "ci_lo": null,150 "ci_hi": null,151 "page": 4,152 "confidence": "high",153 "notes": "mean Secchi depth of the lake (m) during milfoil growing season; SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"154 },155 {156 "model_id": "T2-c2",157 "var_name_printed": "Milfoil presence",158 "taxonomy_id": "water_quality",159 "x_transform": "dummy",160 "x_unit": "binary",161 "beta": -94670.0,162 "se": 49174.7,163 "t": null,164 "p": null,165 "p_stars": "*",166 "ci_lo": null,167 "ci_hi": null,168 "page": 4,169 "confidence": "high",170 "notes": "presence of invasive Eurasian milfoil in the lake adjacent to the property (endogenous, instrumented by boat launch, fish stocking, water clarity, lake area, temperature); lake-level attribute; SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"171 },172 {173 "model_id": "T2-c2",174 "var_name_printed": "House size",175 "taxonomy_id": "living_area",176 "x_transform": "level",177 "x_unit": "m2",178 "beta": 2474.0,179 "se": 703.9,180 "t": null,181 "p": null,182 "p_stars": "***",183 "ci_lo": null,184 "ci_hi": null,185 "page": 4,186 "confidence": "high",187 "notes": "total living area in m2; coefficient in 2006 USD per m2; SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"188 },189 {190 "model_id": "T2-c2",191 "var_name_printed": "Lot size",192 "taxonomy_id": "lot_size",193 "x_transform": "level",194 "x_unit": "m2",195 "beta": -1.2,196 "se": 13.2,197 "t": null,198 "p": null,199 "p_stars": "",200 "ci_lo": null,201 "ci_hi": null,202 "page": 4,203 "confidence": "high",204 "notes": "parcel size in m2; SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"205 },206 {207 "model_id": "T2-c2",208 "var_name_printed": "Lake area",209 "taxonomy_id": "other",210 "x_transform": "level",211 "x_unit": "km2",212 "beta": 154409.5,213 "se": 74073.6,214 "t": null,215 "p": null,216 "p_stars": "*",217 "ci_lo": null,218 "ci_hi": null,219 "page": 4,220 "confidence": "high",221 "notes": "surface area of the adjacent lake in km2 (lake-level attribute); SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"222 },223 {224 "model_id": "T2-c2",225 "var_name_printed": "Water clarity",226 "taxonomy_id": "water_quality",227 "x_transform": "level",228 "x_unit": "m",229 "beta": -6962.7,230 "se": 12820.2,231 "t": null,232 "p": null,233 "p_stars": "",234 "ci_lo": null,235 "ci_hi": null,236 "page": 4,237 "confidence": "high",238 "notes": "mean Secchi depth of the lake (m) during milfoil growing season; SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"239 },240 {241 "model_id": "T2-c3",242 "var_name_printed": "Milfoil presence",243 "taxonomy_id": "water_quality",244 "x_transform": "dummy",245 "x_unit": "binary",246 "beta": -92558.0,247 "se": 48255.6,248 "t": null,249 "p": null,250 "p_stars": "*",251 "ci_lo": null,252 "ci_hi": null,253 "page": 4,254 "confidence": "high",255 "notes": "presence of invasive Eurasian milfoil in the lake adjacent to the property (endogenous, instrumented by boat launch, fish stocking, water clarity, lake area, temperature); lake-level attribute; SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"256 },257 {258 "model_id": "T2-c3",259 "var_name_printed": "House size",260 "taxonomy_id": "living_area",261 "x_transform": "level",262 "x_unit": "m2",263 "beta": 2681.6,264 "se": 726.0,265 "t": null,266 "p": null,267 "p_stars": "***",268 "ci_lo": null,269 "ci_hi": null,270 "page": 4,271 "confidence": "high",272 "notes": "total living area in m2; coefficient in 2006 USD per m2; SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"273 },274 {275 "model_id": "T2-c3",276 "var_name_printed": "Lot size",277 "taxonomy_id": "lot_size",278 "x_transform": "level",279 "x_unit": "m2",280 "beta": 3.1,281 "se": 12.9,282 "t": null,283 "p": null,284 "p_stars": "",285 "ci_lo": null,286 "ci_hi": null,287 "page": 4,288 "confidence": "high",289 "notes": "parcel size in m2; SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"290 },291 {292 "model_id": "T2-c3",293 "var_name_printed": "Parcel density",294 "taxonomy_id": "density",295 "x_transform": "level",296 "x_unit": "count",297 "beta": 115.4,298 "se": 78.6,299 "t": null,300 "p": null,301 "p_stars": "",302 "ci_lo": null,303 "ci_hi": null,304 "page": 4,305 "confidence": "high",306 "notes": "number of lakefront parcels per km2 (lake-level); SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"307 },308 {309 "model_id": "T2-c3",310 "var_name_printed": "Lake area",311 "taxonomy_id": "other",312 "x_transform": "level",313 "x_unit": "km2",314 "beta": 215595.0,315 "se": 84521.5,316 "t": null,317 "p": null,318 "p_stars": "**",319 "ci_lo": null,320 "ci_hi": null,321 "page": 4,322 "confidence": "high",323 "notes": "surface area of the adjacent lake in km2 (lake-level attribute); SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"324 },325 {326 "model_id": "T2-c3",327 "var_name_printed": "Water clarity",328 "taxonomy_id": "water_quality",329 "x_transform": "level",330 "x_unit": "m",331 "beta": -6954.9,332 "se": 12600.7,333 "t": null,334 "p": null,335 "p_stars": "",336 "ci_lo": null,337 "ci_hi": null,338 "page": 4,339 "confidence": "high",340 "notes": "mean Secchi depth of the lake (m) during milfoil growing season; SE in separate column; stars * p<0.10 ** p<0.05 *** p<0.01; table printed rotated, columns reconstructed from PDF positions; minus signs rendered as '2' in the PDF text layer"341 }342 ]343}