1{2 "record_id": "84a6e8ef31bf481e52cb738679f636c9a2fcc69f",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "Loss of Value in House Properties due to Air Pollution in Map Ta Phut Industrial Area of Thailand",7 "year": 2016,8 "doi": "10.35762/aer.2016.38.3.1",9 "country": "Thailand",10 "region_city": "Map Ta Phut, Rayong province (3 communities around 2 air monitoring stations)",11 "sample_start": 2016,12 "sample_end": 2016,13 "property_type": "mixed",14 "price_type": "appraisal",15 "data_source": "Household interview survey (quota sample, 200 households, 192 after outlier removal), January 2016; house price self-reported by owners; AQI from Pollution Control Department",16 "document_type": "journal",17 "estimators": [18 "other"19 ],20 "spatial_method": "none",21 "time_fe": false,22 "location_fe": false,23 "se_type": "unknown",24 "n_obs_total": 192,25 "ai_methods": [],26 "notes": "Price is owner-reported house value from interviews (not transaction); coded 'appraisal' (owner estimate). Four Box-Cox maximum-likelihood models (Table 5, p.9): lhsonly (theta=0.476 on price only), rhsonly (lambda=-0.178 on regressors only), lambda (common 0.175), theta (theta=0.288, lambda=-0.461; preferred by AIC/BIC). Values in parentheses under coefficients are NOT standard errors or t-statistics: they are the chi-square(1) test statistics of Stata's boxcox output (e.g. Detach 434.886*** (26.884); Age -0.398 (0.033)); recorded in notes, se/t left null. Stars: * p<0.10, ** p<0.05, *** p<0.01 (inferred legend; legend not printed - treat as medium confidence). Air pollution (AQI) has only two values (two monitoring stations). Detached (1) vs townhouse (0) dummy. Continuous regressors Box-Cox transformed in rhsonly/lambda/theta models (which variables transformed not fully explicit; Eq. 10 lists Bath, Lot, AQI). Implicit prices (Table 6, p.10, theta model): Detach THB 299,259; Bath THB 6,593; Lot THB 2,221/m2; AQI -THB 2,815 per unit."27 },28 "models": [29 {30 "model_id": "T5-lhs",31 "table": "5",32 "column": "lhsonly Model",33 "page": 9,34 "dep_var": "house price (THB), Box-Cox theta=0.476",35 "dep_transform": "boxcox",36 "estimator": "other",37 "n_obs": 192,38 "r2": null,39 "se_or_t_in_parentheses": "none",40 "sample_subset": "Box-Cox ML, dependent variable transformed only; chi2(1) in parentheses; AIC 2180.956"41 },42 {43 "model_id": "T5-rhs",44 "table": "5",45 "column": "rhsonly Model",46 "page": 9,47 "dep_var": "house price (THB), level",48 "dep_transform": "level",49 "estimator": "other",50 "n_obs": 192,51 "r2": null,52 "se_or_t_in_parentheses": "none",53 "sample_subset": "Box-Cox ML, regressors transformed (lambda=-0.178); chi2(1) in parentheses; AIC 2187.270"54 },55 {56 "model_id": "T5-lambda",57 "table": "5",58 "column": "Lambda Model",59 "page": 9,60 "dep_var": "house price (THB), Box-Cox lambda=0.175",61 "dep_transform": "boxcox",62 "estimator": "other",63 "n_obs": 192,64 "r2": null,65 "se_or_t_in_parentheses": "none",66 "sample_subset": "Box-Cox ML, common lambda=0.175 both sides; chi2(1) in parentheses; AIC 2175.152"67 },68 {69 "model_id": "T5-theta",70 "table": "5",71 "column": "Theta Model",72 "page": 9,73 "dep_var": "house price (THB), Box-Cox theta=0.288",74 "dep_transform": "boxcox",75 "estimator": "other",76 "n_obs": 192,77 "r2": null,78 "se_or_t_in_parentheses": "none",79 "sample_subset": "Box-Cox ML, theta=0.288 (lhs), lambda=-0.461 (rhs); preferred model; chi2(1) in parentheses; AIC 2170.988"80 }81 ],82 "coefficients": [83 {84 "model_id": "T5-lhs",85 "var_name_printed": "Detach",86 "taxonomy_id": "dwelling_type",87 "x_transform": "binary",88 "x_unit": "binary",89 "beta": 434.886,90 "se": null,91 "t": null,92 "p": null,93 "p_stars": "***",94 "ci_lo": null,95 "ci_hi": null,96 "page": 9,97 "confidence": "medium",98 "notes": "1=detached house, 0=townhouse; chi2(1) statistic in parentheses = 26.884; no SE printed"99 },100 {101 "model_id": "T5-lhs",102 "var_name_printed": "Age",103 "taxonomy_id": "age",104 "x_transform": "level",105 "x_unit": "years",106 "beta": -0.398,107 "se": null,108 "t": null,109 "p": null,110 "p_stars": "",111 "ci_lo": null,112 "ci_hi": null,113 "page": 9,114 "confidence": "medium",115 "notes": "house age in years; chi2(1) statistic in parentheses = 0.033; no SE printed"116 },117 {118 "model_id": "T5-lhs",119 "var_name_printed": "Bed",120 "taxonomy_id": "bedrooms",121 "x_transform": "level",122 "x_unit": "count",123 "beta": 156.273,124 "se": null,125 "t": null,126 "p": null,127 "p_stars": "***",128 "ci_lo": null,129 "ci_hi": null,130 "page": 9,131 "confidence": "medium",132 "notes": "number of bedrooms; chi2(1) statistic in parentheses = 6.852; no SE printed"133 },134 {135 "model_id": "T5-lhs",136 "var_name_printed": "Bath",137 "taxonomy_id": "bathrooms",138 "x_transform": "level",139 "x_unit": "count",140 "beta": 262.351,141 "se": null,142 "t": null,143 "p": null,144 "p_stars": "***",145 "ci_lo": null,146 "ci_hi": null,147 "page": 9,148 "confidence": "medium",149 "notes": "number of bathrooms; chi2(1) statistic in parentheses = 17.368; no SE printed"150 },151 {152 "model_id": "T5-lhs",153 "var_name_printed": "Area",154 "taxonomy_id": "living_area",155 "x_transform": "level",156 "x_unit": "m2",157 "beta": -0.408,158 "se": null,159 "t": null,160 "p": null,161 "p_stars": "*",162 "ci_lo": null,163 "ci_hi": null,164 "page": 9,165 "confidence": "medium",166 "notes": "utilization (floor) area in m2; chi2(1) statistic in parentheses = 3.087; no SE printed"167 },168 {169 "model_id": "T5-lhs",170 "var_name_printed": "Lot",171 "taxonomy_id": "lot_size",172 "x_transform": "level",173 "x_unit": "m2",174 "beta": 0.44,175 "se": null,176 "t": null,177 "p": null,178 "p_stars": "***",179 "ci_lo": null,180 "ci_hi": null,181 "page": 9,182 "confidence": "medium",183 "notes": "land size in m2; chi2(1) statistic in parentheses = 7.316; no SE printed"184 },185 {186 "model_id": "T5-lhs",187 "var_name_printed": "Discbd",188 "taxonomy_id": "cbd_distance",189 "x_transform": "level",190 "x_unit": "m",191 "beta": -0.029,192 "se": null,193 "t": null,194 "p": null,195 "p_stars": "",196 "ci_lo": null,197 "ci_hi": null,198 "page": 9,199 "confidence": "medium",200 "notes": "distance to district center in metres; chi2(1) statistic in parentheses = 1.765; no SE printed"201 },202 {203 "model_id": "T5-lhs",204 "var_name_printed": "Main",205 "taxonomy_id": "other",206 "x_transform": "binary",207 "x_unit": "binary",208 "beta": -73.568,209 "se": null,210 "t": null,211 "p": null,212 "p_stars": "",213 "ci_lo": null,214 "ci_hi": null,215 "page": 9,216 "confidence": "medium",217 "notes": "main road location (1=main road); chi2(1) statistic in parentheses = 1.094; no SE printed"218 },219 {220 "model_id": "T5-lhs",221 "var_name_printed": "AQI",222 "taxonomy_id": "air_pollution",223 "x_transform": "level",224 "x_unit": "index",225 "beta": 9.955,226 "se": null,227 "t": null,228 "p": null,229 "p_stars": "",230 "ci_lo": null,231 "ci_hi": null,232 "page": 9,233 "confidence": "medium",234 "notes": "daily average Air Quality Index (two station values); chi2(1) statistic in parentheses = 0.59; no SE printed"235 },236 {237 "model_id": "T5-rhs",238 "var_name_printed": "Detach",239 "taxonomy_id": "dwelling_type",240 "x_transform": "binary",241 "x_unit": "binary",242 "beta": 391533.5,243 "se": null,244 "t": null,245 "p": null,246 "p_stars": "**",247 "ci_lo": null,248 "ci_hi": null,249 "page": 9,250 "confidence": "medium",251 "notes": "1=detached house, 0=townhouse; chi2(1) statistic in parentheses = 5.373; no SE printed"252 },253 {254 "model_id": "T5-rhs",255 "var_name_printed": "Age",256 "taxonomy_id": "age",257 "x_transform": "other",258 "x_unit": "years",259 "beta": -45908.14,260 "se": null,261 "t": null,262 "p": null,263 "p_stars": "",264 "ci_lo": null,265 "ci_hi": null,266 "page": 9,267 "confidence": "medium",268 "notes": "house age in years; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 0.3; no SE printed"269 },270 {271 "model_id": "T5-rhs",272 "var_name_printed": "Bed",273 "taxonomy_id": "bedrooms",274 "x_transform": "other",275 "x_unit": "count",276 "beta": 286382.1,277 "se": null,278 "t": null,279 "p": null,280 "p_stars": "",281 "ci_lo": null,282 "ci_hi": null,283 "page": 9,284 "confidence": "medium",285 "notes": "number of bedrooms; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 0.976; no SE printed"286 },287 {288 "model_id": "T5-rhs",289 "var_name_printed": "Bath",290 "taxonomy_id": "bathrooms",291 "x_transform": "other",292 "x_unit": "count",293 "beta": 569925.7,294 "se": null,295 "t": null,296 "p": null,297 "p_stars": "***",298 "ci_lo": null,299 "ci_hi": null,300 "page": 9,301 "confidence": "medium",302 "notes": "number of bathrooms; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 7.381; no SE printed"303 },304 {305 "model_id": "T5-rhs",306 "var_name_printed": "Area",307 "taxonomy_id": "living_area",308 "x_transform": "other",309 "x_unit": "m2",310 "beta": -166003.9,311 "se": null,312 "t": null,313 "p": null,314 "p_stars": "",315 "ci_lo": null,316 "ci_hi": null,317 "page": 9,318 "confidence": "medium",319 "notes": "utilization (floor) area in m2; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 0.427; no SE printed"320 },321 {322 "model_id": "T5-rhs",323 "var_name_printed": "Lot",324 "taxonomy_id": "lot_size",325 "x_transform": "other",326 "x_unit": "m2",327 "beta": 1561252.0,328 "se": null,329 "t": null,330 "p": null,331 "p_stars": "***",332 "ci_lo": null,333 "ci_hi": null,334 "page": 9,335 "confidence": "medium",336 "notes": "land size in m2; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 9.93; no SE printed"337 },338 {339 "model_id": "T5-rhs",340 "var_name_printed": "Discbd",341 "taxonomy_id": "cbd_distance",342 "x_transform": "other",343 "x_unit": "m",344 "beta": -80836.09,345 "se": null,346 "t": null,347 "p": null,348 "p_stars": "",349 "ci_lo": null,350 "ci_hi": null,351 "page": 9,352 "confidence": "medium",353 "notes": "distance to district center in metres; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 0.106; no SE printed"354 },355 {356 "model_id": "T5-rhs",357 "var_name_printed": "Main",358 "taxonomy_id": "other",359 "x_transform": "binary",360 "x_unit": "binary",361 "beta": -184539.0,362 "se": null,363 "t": null,364 "p": null,365 "p_stars": "*",366 "ci_lo": null,367 "ci_hi": null,368 "page": 9,369 "confidence": "medium",370 "notes": "main road location (1=main road); chi2(1) statistic in parentheses = 3.26; no SE printed"371 },372 {373 "model_id": "T5-rhs",374 "var_name_printed": "AQI",375 "taxonomy_id": "air_pollution",376 "x_transform": "other",377 "x_unit": "index",378 "beta": -1144197.0,379 "se": null,380 "t": null,381 "p": null,382 "p_stars": "",383 "ci_lo": null,384 "ci_hi": null,385 "page": 9,386 "confidence": "medium",387 "notes": "daily average Air Quality Index (two station values); Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 1.101; no SE printed"388 },389 {390 "model_id": "T5-lambda",391 "var_name_printed": "Detach",392 "taxonomy_id": "dwelling_type",393 "x_transform": "binary",394 "x_unit": "binary",395 "beta": 3.048,396 "se": null,397 "t": null,398 "p": null,399 "p_stars": "**",400 "ci_lo": null,401 "ci_hi": null,402 "page": 9,403 "confidence": "medium",404 "notes": "1=detached house, 0=townhouse; chi2(1) statistic in parentheses = 5.31; no SE printed"405 },406 {407 "model_id": "T5-lambda",408 "var_name_printed": "Age",409 "taxonomy_id": "age",410 "x_transform": "other",411 "x_unit": "years",412 "beta": -0.247,413 "se": null,414 "t": null,415 "p": null,416 "p_stars": "",417 "ci_lo": null,418 "ci_hi": null,419 "page": 9,420 "confidence": "medium",421 "notes": "house age in years; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 0.751; no SE printed"422 },423 {424 "model_id": "T5-lambda",425 "var_name_printed": "Bed",426 "taxonomy_id": "bedrooms",427 "x_transform": "other",428 "x_unit": "count",429 "beta": 3.289,430 "se": null,431 "t": null,432 "p": null,433 "p_stars": "**",434 "ci_lo": null,435 "ci_hi": null,436 "page": 9,437 "confidence": "medium",438 "notes": "number of bedrooms; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 4.344; no SE printed"439 },440 {441 "model_id": "T5-lambda",442 "var_name_printed": "Bath",443 "taxonomy_id": "bathrooms",444 "x_transform": "other",445 "x_unit": "count",446 "beta": 4.093,447 "se": null,448 "t": null,449 "p": null,450 "p_stars": "***",451 "ci_lo": null,452 "ci_hi": null,453 "page": 9,454 "confidence": "medium",455 "notes": "number of bathrooms; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 10.071; no SE printed"456 },457 {458 "model_id": "T5-lambda",459 "var_name_printed": "Area",460 "taxonomy_id": "living_area",461 "x_transform": "other",462 "x_unit": "m2",463 "beta": -0.178,464 "se": null,465 "t": null,466 "p": null,467 "p_stars": "",468 "ci_lo": null,469 "ci_hi": null,470 "page": 9,471 "confidence": "medium",472 "notes": "utilization (floor) area in m2; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 0.302; no SE printed"473 },474 {475 "model_id": "T5-lambda",476 "var_name_printed": "Lot",477 "taxonomy_id": "lot_size",478 "x_transform": "other",479 "x_unit": "m2",480 "beta": 1.48,481 "se": null,482 "t": null,483 "p": null,484 "p_stars": "***",485 "ci_lo": null,486 "ci_hi": null,487 "page": 9,488 "confidence": "medium",489 "notes": "land size in m2; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 14.003; no SE printed"490 },491 {492 "model_id": "T5-lambda",493 "var_name_printed": "Discbd",494 "taxonomy_id": "cbd_distance",495 "x_transform": "other",496 "x_unit": "m",497 "beta": -0.035,498 "se": null,499 "t": null,500 "p": null,501 "p_stars": "",502 "ci_lo": null,503 "ci_hi": null,504 "page": 9,505 "confidence": "medium",506 "notes": "distance to district center in metres; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 0.027; no SE printed"507 },508 {509 "model_id": "T5-lambda",510 "var_name_printed": "Main",511 "taxonomy_id": "other",512 "x_transform": "binary",513 "x_unit": "binary",514 "beta": -1.488,515 "se": null,516 "t": null,517 "p": null,518 "p_stars": "*",519 "ci_lo": null,520 "ci_hi": null,521 "page": 9,522 "confidence": "medium",523 "notes": "main road location (1=main road); chi2(1) statistic in parentheses = 2.703; no SE printed"524 },525 {526 "model_id": "T5-lambda",527 "var_name_printed": "AQI",528 "taxonomy_id": "air_pollution",529 "x_transform": "other",530 "x_unit": "index",531 "beta": -2.144,532 "se": null,533 "t": null,534 "p": null,535 "p_stars": "",536 "ci_lo": null,537 "ci_hi": null,538 "page": 9,539 "confidence": "medium",540 "notes": "daily average Air Quality Index (two station values); Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 0.511; no SE printed"541 },542 {543 "model_id": "T5-theta",544 "var_name_printed": "Detach",545 "taxonomy_id": "dwelling_type",546 "x_transform": "binary",547 "x_unit": "binary",548 "beta": 10.738,549 "se": null,550 "t": null,551 "p": null,552 "p_stars": "*",553 "ci_lo": null,554 "ci_hi": null,555 "page": 9,556 "confidence": "medium",557 "notes": "1=detached house, 0=townhouse; chi2(1) statistic in parentheses = 3.356; no SE printed"558 },559 {560 "model_id": "T5-theta",561 "var_name_printed": "Age",562 "taxonomy_id": "age",563 "x_transform": "other",564 "x_unit": "years",565 "beta": -2.656,566 "se": null,567 "t": null,568 "p": null,569 "p_stars": "",570 "ci_lo": null,571 "ci_hi": null,572 "page": 9,573 "confidence": "medium",574 "notes": "house age in years; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 0.265; no SE printed"575 },576 {577 "model_id": "T5-theta",578 "var_name_printed": "Bed",579 "taxonomy_id": "bedrooms",580 "x_transform": "other",581 "x_unit": "count",582 "beta": 17.64,583 "se": null,584 "t": null,585 "p": null,586 "p_stars": "",587 "ci_lo": null,588 "ci_hi": null,589 "page": 9,590 "confidence": "medium",591 "notes": "number of bedrooms; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 2.115; no SE printed"592 },593 {594 "model_id": "T5-theta",595 "var_name_printed": "Bath",596 "taxonomy_id": "bathrooms",597 "x_transform": "other",598 "x_unit": "count",599 "beta": 22.805,600 "se": null,601 "t": null,602 "p": null,603 "p_stars": "***",604 "ci_lo": null,605 "ci_hi": null,606 "page": 9,607 "confidence": "medium",608 "notes": "number of bathrooms; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 7.779; no SE printed"609 },610 {611 "model_id": "T5-theta",612 "var_name_printed": "Area",613 "taxonomy_id": "living_area",614 "x_transform": "other",615 "x_unit": "m2",616 "beta": 0.131,617 "se": null,618 "t": null,619 "p": null,620 "p_stars": "",621 "ci_lo": null,622 "ci_hi": null,623 "page": 9,624 "confidence": "medium",625 "notes": "utilization (floor) area in m2; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 0.0; no SE printed"626 },627 {628 "model_id": "T5-theta",629 "var_name_printed": "Lot",630 "taxonomy_id": "lot_size",631 "x_transform": "other",632 "x_unit": "m2",633 "beta": 241.498,634 "se": null,635 "t": null,636 "p": null,637 "p_stars": "***",638 "ci_lo": null,639 "ci_hi": null,640 "page": 9,641 "confidence": "medium",642 "notes": "land size in m2; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 19.346; no SE printed"643 },644 {645 "model_id": "T5-theta",646 "var_name_printed": "Discbd",647 "taxonomy_id": "cbd_distance",648 "x_transform": "other",649 "x_unit": "m",650 "beta": -13.424,651 "se": null,652 "t": null,653 "p": null,654 "p_stars": "",655 "ci_lo": null,656 "ci_hi": null,657 "page": 9,658 "confidence": "medium",659 "notes": "distance to district center in metres; Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 0.08; no SE printed"660 },661 {662 "model_id": "T5-theta",663 "var_name_printed": "Main",664 "taxonomy_id": "other",665 "x_transform": "binary",666 "x_unit": "binary",667 "beta": -6.97,668 "se": null,669 "t": null,670 "p": null,671 "p_stars": "",672 "ci_lo": null,673 "ci_hi": null,674 "page": 9,675 "confidence": "medium",676 "notes": "main road location (1=main road); chi2(1) statistic in parentheses = 2.265; no SE printed"677 },678 {679 "model_id": "T5-theta",680 "var_name_printed": "AQI",681 "taxonomy_id": "air_pollution",682 "x_transform": "other",683 "x_unit": "index",684 "beta": -144.509,685 "se": null,686 "t": null,687 "p": null,688 "p_stars": "*",689 "ci_lo": null,690 "ci_hi": null,691 "page": 9,692 "confidence": "medium",693 "notes": "daily average Air Quality Index (two station values); Box-Cox transformed regressor (see model lambda); chi2(1) statistic in parentheses = 3.582; no SE printed"694 }695 ]696}