1{2 "record_id": "7a87d94cbb2a1bb3af93865c70eaef38f5783daa",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "Hedonic Modeling for a Growing Housing Market: Valuation of Apartments in Complexes",7 "year": 2014,8 "doi": "10.5539/ijef.v6n3p188",9 "country": "Turkey",10 "region_city": "Metropolitan Izmit (Kocaeli): Izmit, Kartepe, Basiskele",11 "sample_start": null,12 "sample_end": null,13 "property_type": "condo_apartment",14 "price_type": "transaction",15 "data_source": "survey of real estate agents' transaction records (N=405 apartments in complexes)",16 "document_type": "journal",17 "estimators": [18 "OLS"19 ],20 "spatial_method": "none (municipality and complex dummies)",21 "time_fe": false,22 "location_fe": false,23 "se_type": "robust",24 "n_obs_total": 405,25 "ai_methods": [],26 "notes": "Sample year not printed in dump (school-quality proxy uses 2012 SBS test, so data c. 2012-2013). White-Eicker robust SEs in parentheses; stars * 10%, ** 5%, *** 1%. Complex dummy YHYKPTN and municipality dummies KARTEPE/BASISKELE not extracted (location indicators). Model (4) includes municipality dummies (location_fe partially true for that column). Table 3 (transformed percentage effects) not extracted."27 },28 "models": [29 {30 "model_id": "T2-c1",31 "table": "2",32 "column": "1",33 "page": 8,34 "dep_var": "log(PRICE), sale price of apartment (TL)",35 "dep_transform": "log",36 "estimator": "OLS",37 "n_obs": 405,38 "r2": 0.851,39 "se_or_t_in_parentheses": "se",40 "sample_subset": ""41 },42 {43 "model_id": "T2-c2",44 "table": "2",45 "column": "2",46 "page": 8,47 "dep_var": "log(PRICE), sale price of apartment (TL)",48 "dep_transform": "log",49 "estimator": "OLS",50 "n_obs": 405,51 "r2": 0.861,52 "se_or_t_in_parentheses": "se",53 "sample_subset": ""54 },55 {56 "model_id": "T2-c3",57 "table": "2",58 "column": "3",59 "page": 8,60 "dep_var": "log(PRICE), sale price of apartment (TL)",61 "dep_transform": "log",62 "estimator": "OLS",63 "n_obs": 405,64 "r2": 0.894,65 "se_or_t_in_parentheses": "se",66 "sample_subset": ""67 },68 {69 "model_id": "T2-c4",70 "table": "2",71 "column": "4",72 "page": 8,73 "dep_var": "log(PRICE), sale price of apartment (TL)",74 "dep_transform": "log",75 "estimator": "OLS",76 "n_obs": 405,77 "r2": 0.908,78 "se_or_t_in_parentheses": "se",79 "sample_subset": ""80 }81 ],82 "coefficients": [83 {84 "model_id": "T2-c1",85 "var_name_printed": "AREA",86 "taxonomy_id": "living_area",87 "x_transform": "level",88 "x_unit": "m2",89 "beta": 0.012,90 "se": 0.001,91 "t": null,92 "p": null,93 "p_stars": "***",94 "ci_lo": null,95 "ci_hi": null,96 "page": 8,97 "confidence": "high",98 "notes": "floor area of apartment (m2); enters with AREA2"99 },100 {101 "model_id": "T2-c2",102 "var_name_printed": "AREA",103 "taxonomy_id": "living_area",104 "x_transform": "level",105 "x_unit": "m2",106 "beta": 0.012,107 "se": 0.001,108 "t": null,109 "p": null,110 "p_stars": "***",111 "ci_lo": null,112 "ci_hi": null,113 "page": 8,114 "confidence": "high",115 "notes": "floor area of apartment (m2); enters with AREA2"116 },117 {118 "model_id": "T2-c3",119 "var_name_printed": "AREA",120 "taxonomy_id": "living_area",121 "x_transform": "level",122 "x_unit": "m2",123 "beta": 0.012,124 "se": 0.001,125 "t": null,126 "p": null,127 "p_stars": "***",128 "ci_lo": null,129 "ci_hi": null,130 "page": 8,131 "confidence": "high",132 "notes": "floor area of apartment (m2); enters with AREA2"133 },134 {135 "model_id": "T2-c4",136 "var_name_printed": "AREA",137 "taxonomy_id": "living_area",138 "x_transform": "level",139 "x_unit": "m2",140 "beta": 0.012,141 "se": 0.001,142 "t": null,143 "p": null,144 "p_stars": "***",145 "ci_lo": null,146 "ci_hi": null,147 "page": 8,148 "confidence": "high",149 "notes": "floor area of apartment (m2); enters with AREA2"150 },151 {152 "model_id": "T2-c1",153 "var_name_printed": "AREA2",154 "taxonomy_id": "living_area",155 "x_transform": "squared",156 "x_unit": "m2",157 "beta": -2.39e-05,158 "se": 4.7e-06,159 "t": null,160 "p": null,161 "p_stars": "***",162 "ci_lo": null,163 "ci_hi": null,164 "page": 8,165 "confidence": "high",166 "notes": "square of floor area; printed in E-05 notation"167 },168 {169 "model_id": "T2-c2",170 "var_name_printed": "AREA2",171 "taxonomy_id": "living_area",172 "x_transform": "squared",173 "x_unit": "m2",174 "beta": -2.45e-05,175 "se": 4.9e-06,176 "t": null,177 "p": null,178 "p_stars": "***",179 "ci_lo": null,180 "ci_hi": null,181 "page": 8,182 "confidence": "high",183 "notes": "square of floor area; printed in E-05 notation"184 },185 {186 "model_id": "T2-c3",187 "var_name_printed": "AREA2",188 "taxonomy_id": "living_area",189 "x_transform": "squared",190 "x_unit": "m2",191 "beta": -2.1e-05,192 "se": 3.8e-06,193 "t": null,194 "p": null,195 "p_stars": "***",196 "ci_lo": null,197 "ci_hi": null,198 "page": 8,199 "confidence": "high",200 "notes": "square of floor area; printed in E-05 notation"201 },202 {203 "model_id": "T2-c4",204 "var_name_printed": "AREA2",205 "taxonomy_id": "living_area",206 "x_transform": "squared",207 "x_unit": "m2",208 "beta": -2.42e-05,209 "se": 3.7e-06,210 "t": null,211 "p": null,212 "p_stars": "***",213 "ci_lo": null,214 "ci_hi": null,215 "page": 8,216 "confidence": "high",217 "notes": "square of floor area; printed in E-05 notation"218 },219 {220 "model_id": "T2-c1",221 "var_name_printed": "CNSTR_LQ",222 "taxonomy_id": "condition",223 "x_transform": "binary",224 "x_unit": "binary",225 "beta": -0.14,226 "se": 0.021,227 "t": null,228 "p": null,229 "p_stars": "***",230 "ci_lo": null,231 "ci_hi": null,232 "page": 8,233 "confidence": "high",234 "notes": "1 = construction quality below average"235 },236 {237 "model_id": "T2-c2",238 "var_name_printed": "CNSTR_LQ",239 "taxonomy_id": "condition",240 "x_transform": "binary",241 "x_unit": "binary",242 "beta": -0.104,243 "se": 0.023,244 "t": null,245 "p": null,246 "p_stars": "***",247 "ci_lo": null,248 "ci_hi": null,249 "page": 8,250 "confidence": "high",251 "notes": "1 = construction quality below average"252 },253 {254 "model_id": "T2-c3",255 "var_name_printed": "CNSTR_LQ",256 "taxonomy_id": "condition",257 "x_transform": "binary",258 "x_unit": "binary",259 "beta": -0.104,260 "se": 0.025,261 "t": null,262 "p": null,263 "p_stars": "***",264 "ci_lo": null,265 "ci_hi": null,266 "page": 8,267 "confidence": "high",268 "notes": "1 = construction quality below average"269 },270 {271 "model_id": "T2-c4",272 "var_name_printed": "CNSTR_LQ",273 "taxonomy_id": "condition",274 "x_transform": "binary",275 "x_unit": "binary",276 "beta": -0.102,277 "se": 0.021,278 "t": null,279 "p": null,280 "p_stars": "***",281 "ci_lo": null,282 "ci_hi": null,283 "page": 8,284 "confidence": "high",285 "notes": "1 = construction quality below average"286 },287 {288 "model_id": "T2-c1",289 "var_name_printed": "AGE",290 "taxonomy_id": "age",291 "x_transform": "level",292 "x_unit": "years",293 "beta": -0.001,294 "se": 0.001,295 "t": null,296 "p": null,297 "p_stars": "",298 "ci_lo": null,299 "ci_hi": null,300 "page": 8,301 "confidence": "high",302 "notes": "age of building in years"303 },304 {305 "model_id": "T2-c2",306 "var_name_printed": "AGE",307 "taxonomy_id": "age",308 "x_transform": "level",309 "x_unit": "years",310 "beta": -0.009,311 "se": 0.002,312 "t": null,313 "p": null,314 "p_stars": "***",315 "ci_lo": null,316 "ci_hi": null,317 "page": 8,318 "confidence": "high",319 "notes": "age of building in years"320 },321 {322 "model_id": "T2-c3",323 "var_name_printed": "AGE",324 "taxonomy_id": "age",325 "x_transform": "level",326 "x_unit": "years",327 "beta": -0.018,328 "se": 0.002,329 "t": null,330 "p": null,331 "p_stars": "***",332 "ci_lo": null,333 "ci_hi": null,334 "page": 8,335 "confidence": "high",336 "notes": "age of building in years"337 },338 {339 "model_id": "T2-c4",340 "var_name_printed": "AGE",341 "taxonomy_id": "age",342 "x_transform": "level",343 "x_unit": "years",344 "beta": -0.018,345 "se": 0.002,346 "t": null,347 "p": null,348 "p_stars": "***",349 "ci_lo": null,350 "ci_hi": null,351 "page": 8,352 "confidence": "high",353 "notes": "age of building in years"354 },355 {356 "model_id": "T2-c1",357 "var_name_printed": "BATHROOM",358 "taxonomy_id": "bathrooms",359 "x_transform": "binary",360 "x_unit": "binary",361 "beta": 0.135,362 "se": 0.03,363 "t": null,364 "p": null,365 "p_stars": "***",366 "ci_lo": null,367 "ci_hi": null,368 "page": 8,369 "confidence": "high",370 "notes": "1 = more than one bathroom"371 },372 {373 "model_id": "T2-c2",374 "var_name_printed": "BATHROOM",375 "taxonomy_id": "bathrooms",376 "x_transform": "binary",377 "x_unit": "binary",378 "beta": 0.144,379 "se": 0.03,380 "t": null,381 "p": null,382 "p_stars": "***",383 "ci_lo": null,384 "ci_hi": null,385 "page": 8,386 "confidence": "high",387 "notes": "1 = more than one bathroom"388 },389 {390 "model_id": "T2-c3",391 "var_name_printed": "BATHROOM",392 "taxonomy_id": "bathrooms",393 "x_transform": "binary",394 "x_unit": "binary",395 "beta": 0.123,396 "se": 0.033,397 "t": null,398 "p": null,399 "p_stars": "***",400 "ci_lo": null,401 "ci_hi": null,402 "page": 8,403 "confidence": "high",404 "notes": "1 = more than one bathroom"405 },406 {407 "model_id": "T2-c4",408 "var_name_printed": "BATHROOM",409 "taxonomy_id": "bathrooms",410 "x_transform": "binary",411 "x_unit": "binary",412 "beta": 0.151,413 "se": 0.03,414 "t": null,415 "p": null,416 "p_stars": "***",417 "ci_lo": null,418 "ci_hi": null,419 "page": 8,420 "confidence": "high",421 "notes": "1 = more than one bathroom"422 },423 {424 "model_id": "T2-c1",425 "var_name_printed": "BLW_GRND",426 "taxonomy_id": "floor_level",427 "x_transform": "binary",428 "x_unit": "binary",429 "beta": -0.205,430 "se": 0.05,431 "t": null,432 "p": null,433 "p_stars": "***",434 "ci_lo": null,435 "ci_hi": null,436 "page": 8,437 "confidence": "high",438 "notes": "1 = apartment below ground floor"439 },440 {441 "model_id": "T2-c2",442 "var_name_printed": "BLW_GRND",443 "taxonomy_id": "floor_level",444 "x_transform": "binary",445 "x_unit": "binary",446 "beta": -0.191,447 "se": 0.045,448 "t": null,449 "p": null,450 "p_stars": "***",451 "ci_lo": null,452 "ci_hi": null,453 "page": 8,454 "confidence": "high",455 "notes": "1 = apartment below ground floor"456 },457 {458 "model_id": "T2-c3",459 "var_name_printed": "BLW_GRND",460 "taxonomy_id": "floor_level",461 "x_transform": "binary",462 "x_unit": "binary",463 "beta": -0.237,464 "se": 0.057,465 "t": null,466 "p": null,467 "p_stars": "***",468 "ci_lo": null,469 "ci_hi": null,470 "page": 8,471 "confidence": "high",472 "notes": "1 = apartment below ground floor"473 },474 {475 "model_id": "T2-c4",476 "var_name_printed": "BLW_GRND",477 "taxonomy_id": "floor_level",478 "x_transform": "binary",479 "x_unit": "binary",480 "beta": -0.266,481 "se": 0.051,482 "t": null,483 "p": null,484 "p_stars": "***",485 "ci_lo": null,486 "ci_hi": null,487 "page": 8,488 "confidence": "high",489 "notes": "1 = apartment below ground floor"490 },491 {492 "model_id": "T2-c1",493 "var_name_printed": "GROUND",494 "taxonomy_id": "floor_level",495 "x_transform": "binary",496 "x_unit": "binary",497 "beta": -0.075,498 "se": 0.016,499 "t": null,500 "p": null,501 "p_stars": "***",502 "ci_lo": null,503 "ci_hi": null,504 "page": 8,505 "confidence": "high",506 "notes": "1 = apartment on ground floor"507 },508 {509 "model_id": "T2-c2",510 "var_name_printed": "GROUND",511 "taxonomy_id": "floor_level",512 "x_transform": "binary",513 "x_unit": "binary",514 "beta": -0.078,515 "se": 0.016,516 "t": null,517 "p": null,518 "p_stars": "***",519 "ci_lo": null,520 "ci_hi": null,521 "page": 8,522 "confidence": "high",523 "notes": "1 = apartment on ground floor"524 },525 {526 "model_id": "T2-c3",527 "var_name_printed": "GROUND",528 "taxonomy_id": "floor_level",529 "x_transform": "binary",530 "x_unit": "binary",531 "beta": -0.086,532 "se": 0.015,533 "t": null,534 "p": null,535 "p_stars": "***",536 "ci_lo": null,537 "ci_hi": null,538 "page": 8,539 "confidence": "high",540 "notes": "1 = apartment on ground floor"541 },542 {543 "model_id": "T2-c4",544 "var_name_printed": "GROUND",545 "taxonomy_id": "floor_level",546 "x_transform": "binary",547 "x_unit": "binary",548 "beta": -0.088,549 "se": 0.014,550 "t": null,551 "p": null,552 "p_stars": "***",553 "ci_lo": null,554 "ci_hi": null,555 "page": 8,556 "confidence": "high",557 "notes": "1 = apartment on ground floor"558 },559 {560 "model_id": "T2-c1",561 "var_name_printed": "NRTH_WST",562 "taxonomy_id": "sunlight",563 "x_transform": "binary",564 "x_unit": "binary",565 "beta": -0.011,566 "se": 0.014,567 "t": null,568 "p": null,569 "p_stars": "",570 "ci_lo": null,571 "ci_hi": null,572 "page": 8,573 "confidence": "high",574 "notes": "1 = faces north and/or west (less sunlight)"575 },576 {577 "model_id": "T2-c2",578 "var_name_printed": "NRTH_WST",579 "taxonomy_id": "sunlight",580 "x_transform": "binary",581 "x_unit": "binary",582 "beta": -0.013,583 "se": 0.014,584 "t": null,585 "p": null,586 "p_stars": "",587 "ci_lo": null,588 "ci_hi": null,589 "page": 8,590 "confidence": "high",591 "notes": "1 = faces north and/or west (less sunlight)"592 },593 {594 "model_id": "T2-c3",595 "var_name_printed": "NRTH_WST",596 "taxonomy_id": "sunlight",597 "x_transform": "binary",598 "x_unit": "binary",599 "beta": -0.014,600 "se": 0.012,601 "t": null,602 "p": null,603 "p_stars": "",604 "ci_lo": null,605 "ci_hi": null,606 "page": 8,607 "confidence": "high",608 "notes": "1 = faces north and/or west (less sunlight)"609 },610 {611 "model_id": "T2-c4",612 "var_name_printed": "NRTH_WST",613 "taxonomy_id": "sunlight",614 "x_transform": "binary",615 "x_unit": "binary",616 "beta": -0.019,617 "se": 0.011,618 "t": null,619 "p": null,620 "p_stars": "*",621 "ci_lo": null,622 "ci_hi": null,623 "page": 8,624 "confidence": "high",625 "notes": "1 = faces north and/or west (less sunlight)"626 },627 {628 "model_id": "T2-c1",629 "var_name_printed": "POOL",630 "taxonomy_id": "pool",631 "x_transform": "binary",632 "x_unit": "binary",633 "beta": 0.233,634 "se": 0.045,635 "t": null,636 "p": null,637 "p_stars": "***",638 "ci_lo": null,639 "ci_hi": null,640 "page": 8,641 "confidence": "high",642 "notes": "swimming pool in apartment complex (shared, not private)"643 },644 {645 "model_id": "T2-c2",646 "var_name_printed": "POOL",647 "taxonomy_id": "pool",648 "x_transform": "binary",649 "x_unit": "binary",650 "beta": 0.234,651 "se": 0.046,652 "t": null,653 "p": null,654 "p_stars": "***",655 "ci_lo": null,656 "ci_hi": null,657 "page": 8,658 "confidence": "high",659 "notes": "swimming pool in apartment complex (shared, not private)"660 },661 {662 "model_id": "T2-c3",663 "var_name_printed": "POOL",664 "taxonomy_id": "pool",665 "x_transform": "binary",666 "x_unit": "binary",667 "beta": 0.217,668 "se": 0.039,669 "t": null,670 "p": null,671 "p_stars": "***",672 "ci_lo": null,673 "ci_hi": null,674 "page": 8,675 "confidence": "high",676 "notes": "swimming pool in apartment complex (shared, not private)"677 },678 {679 "model_id": "T2-c4",680 "var_name_printed": "POOL",681 "taxonomy_id": "pool",682 "x_transform": "binary",683 "x_unit": "binary",684 "beta": 0.19,685 "se": 0.041,686 "t": null,687 "p": null,688 "p_stars": "***",689 "ci_lo": null,690 "ci_hi": null,691 "page": 8,692 "confidence": "high",693 "notes": "swimming pool in apartment complex (shared, not private)"694 },695 {696 "model_id": "T2-c1",697 "var_name_printed": "SECURITY",698 "taxonomy_id": "other",699 "x_transform": "binary",700 "x_unit": "binary",701 "beta": 0.196,702 "se": 0.023,703 "t": null,704 "p": null,705 "p_stars": "***",706 "ci_lo": null,707 "ci_hi": null,708 "page": 8,709 "confidence": "high",710 "notes": "security guards present in complex; no taxonomy leaf"711 },712 {713 "model_id": "T2-c2",714 "var_name_printed": "SECURITY",715 "taxonomy_id": "other",716 "x_transform": "binary",717 "x_unit": "binary",718 "beta": 0.174,719 "se": 0.024,720 "t": null,721 "p": null,722 "p_stars": "***",723 "ci_lo": null,724 "ci_hi": null,725 "page": 8,726 "confidence": "high",727 "notes": "security guards present in complex; no taxonomy leaf"728 },729 {730 "model_id": "T2-c3",731 "var_name_printed": "SECURITY",732 "taxonomy_id": "other",733 "x_transform": "binary",734 "x_unit": "binary",735 "beta": 0.134,736 "se": 0.024,737 "t": null,738 "p": null,739 "p_stars": "***",740 "ci_lo": null,741 "ci_hi": null,742 "page": 8,743 "confidence": "high",744 "notes": "security guards present in complex; no taxonomy leaf"745 },746 {747 "model_id": "T2-c4",748 "var_name_printed": "SECURITY",749 "taxonomy_id": "other",750 "x_transform": "binary",751 "x_unit": "binary",752 "beta": 0.148,753 "se": 0.024,754 "t": null,755 "p": null,756 "p_stars": "***",757 "ci_lo": null,758 "ci_hi": null,759 "page": 8,760 "confidence": "high",761 "notes": "security guards present in complex; no taxonomy leaf"762 },763 {764 "model_id": "T2-c1",765 "var_name_printed": "DISTANCE",766 "taxonomy_id": "cbd_distance",767 "x_transform": "level",768 "x_unit": "km",769 "beta": -0.018,770 "se": 0.003,771 "t": null,772 "p": null,773 "p_stars": "***",774 "ci_lo": null,775 "ci_hi": null,776 "page": 8,777 "confidence": "high",778 "notes": "km from CBD (Anitpark); Table 1 mislabels it 'Binary' but it is continuous (mean 5.77 km)"779 },780 {781 "model_id": "T2-c2",782 "var_name_printed": "DISTANCE",783 "taxonomy_id": "cbd_distance",784 "x_transform": "level",785 "x_unit": "km",786 "beta": -0.018,787 "se": 0.003,788 "t": null,789 "p": null,790 "p_stars": "***",791 "ci_lo": null,792 "ci_hi": null,793 "page": 8,794 "confidence": "high",795 "notes": "km from CBD (Anitpark); Table 1 mislabels it 'Binary' but it is continuous (mean 5.77 km)"796 },797 {798 "model_id": "T2-c3",799 "var_name_printed": "DISTANCE",800 "taxonomy_id": "cbd_distance",801 "x_transform": "level",802 "x_unit": "km",803 "beta": -0.03,804 "se": 0.003,805 "t": null,806 "p": null,807 "p_stars": "***",808 "ci_lo": null,809 "ci_hi": null,810 "page": 8,811 "confidence": "high",812 "notes": "km from CBD (Anitpark); Table 1 mislabels it 'Binary' but it is continuous (mean 5.77 km)"813 },814 {815 "model_id": "T2-c4",816 "var_name_printed": "DISTANCE",817 "taxonomy_id": "cbd_distance",818 "x_transform": "level",819 "x_unit": "km",820 "beta": -0.01,821 "se": 0.005,822 "t": null,823 "p": null,824 "p_stars": "**",825 "ci_lo": null,826 "ci_hi": null,827 "page": 8,828 "confidence": "high",829 "notes": "km from CBD (Anitpark); Table 1 mislabels it 'Binary' but it is continuous (mean 5.77 km)"830 },831 {832 "model_id": "T2-c3",833 "var_name_printed": "SCHOOL",834 "taxonomy_id": "school_quality",835 "x_transform": "binary",836 "x_unit": "binary",837 "beta": 0.2,838 "se": 0.029,839 "t": null,840 "p": null,841 "p_stars": "***",842 "ci_lo": null,843 "ci_hi": null,844 "page": 8,845 "confidence": "high",846 "notes": "1 = high-quality public primary school (top-100 SBS) within 1 km; mixes proximity and quality"847 },848 {849 "model_id": "T2-c4",850 "var_name_printed": "SCHOOL",851 "taxonomy_id": "school_quality",852 "x_transform": "binary",853 "x_unit": "binary",854 "beta": 0.151,855 "se": 0.028,856 "t": null,857 "p": null,858 "p_stars": "***",859 "ci_lo": null,860 "ci_hi": null,861 "page": 8,862 "confidence": "high",863 "notes": "1 = high-quality public primary school (top-100 SBS) within 1 km; mixes proximity and quality"864 },865 {866 "model_id": "T2-c3",867 "var_name_printed": "AIR",868 "taxonomy_id": "air_pollution",869 "x_transform": "binary",870 "x_unit": "binary",871 "beta": 0.141,872 "se": 0.02,873 "t": null,874 "p": null,875 "p_stars": "***",876 "ci_lo": null,877 "ci_hi": null,878 "page": 8,879 "confidence": "high",880 "notes": "1 = air perceived clean by agents (sign reversed relative to pollution)"881 },882 {883 "model_id": "T2-c4",884 "var_name_printed": "AIR",885 "taxonomy_id": "air_pollution",886 "x_transform": "binary",887 "x_unit": "binary",888 "beta": 0.091,889 "se": 0.022,890 "t": null,891 "p": null,892 "p_stars": "***",893 "ci_lo": null,894 "ci_hi": null,895 "page": 8,896 "confidence": "high",897 "notes": "1 = air perceived clean by agents (sign reversed relative to pollution)"898 }899 ]900}