1{2 "record_id": "14eecd7db66f7a02fa146490275ce97a19765a1a",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "The impact of a new light rail system on single-family property values in Charlotte, North Carolina",7 "year": 2012,8 "doi": "10.5198/jtlu.v5i2.261",9 "country": "United States",10 "region_city": "Charlotte (Mecklenburg County), North Carolina",11 "sample_start": 1997,12 "sample_end": 2008,13 "property_type": "single_family",14 "price_type": "transaction",15 "data_source": "Mecklenburg County POLARIS property records",16 "document_type": "journal",17 "estimators": [18 "OLS"19 ],20 "spatial_method": "block-group fixed effects; Moran's I on residuals reported",21 "time_fe": false,22 "location_fe": true,23 "se_type": "unknown",24 "n_obs_total": 6381,25 "ai_methods": [],26 "notes": "Separate OLS regressions for four periods (t1-t4) within 1 mile of future/actual light rail stations; sales prices deflated to 2005 USD. Table 3 prints coefficients with * for p<0.05 only; standard errors printed only for ln(network distance). n per period from Table 2 (1,592; 2,568; 1,308; 913). Block-group dummies absorb neighbourhood characteristics (no time FE within period)."27 },28 "models": [29 {30 "model_id": "T3-T1",31 "table": "3",32 "column": "T1",33 "page": 6,34 "dep_var": "ln(sales price, 2005 constant USD)",35 "dep_transform": "log",36 "estimator": "OLS",37 "n_obs": 1592,38 "r2": 0.779,39 "se_or_t_in_parentheses": "none",40 "sample_subset": "1997-1998 (pre-planning)",41 "notes": "block-group (neighbourhood) fixed effects; only significance at p<0.05 flagged with *; SE printed only for ln(network distance)"42 },43 {44 "model_id": "T3-T2",45 "table": "3",46 "column": "T2",47 "page": 6,48 "dep_var": "ln(sales price, 2005 constant USD)",49 "dep_transform": "log",50 "estimator": "OLS",51 "n_obs": 2568,52 "r2": 0.786,53 "se_or_t_in_parentheses": "none",54 "sample_subset": "1999-2005 (planning)",55 "notes": "block-group (neighbourhood) fixed effects; only significance at p<0.05 flagged with *; SE printed only for ln(network distance)"56 },57 {58 "model_id": "T3-T3",59 "table": "3",60 "column": "T3",61 "page": 6,62 "dep_var": "ln(sales price, 2005 constant USD)",63 "dep_transform": "log",64 "estimator": "OLS",65 "n_obs": 1308,66 "r2": 0.811,67 "se_or_t_in_parentheses": "none",68 "sample_subset": "2005-2007 (construction)",69 "notes": "block-group (neighbourhood) fixed effects; only significance at p<0.05 flagged with *; SE printed only for ln(network distance)"70 },71 {72 "model_id": "T3-T4",73 "table": "3",74 "column": "T4",75 "page": 6,76 "dep_var": "ln(sales price, 2005 constant USD)",77 "dep_transform": "log",78 "estimator": "OLS",79 "n_obs": 913,80 "r2": 0.837,81 "se_or_t_in_parentheses": "none",82 "sample_subset": "2007-2008 (operation)",83 "notes": "block-group (neighbourhood) fixed effects; only significance at p<0.05 flagged with *; SE printed only for ln(network distance)"84 }85 ],86 "coefficients": [87 {88 "model_id": "T3-T1",89 "var_name_printed": "age",90 "taxonomy_id": "age",91 "x_transform": "level",92 "x_unit": "years",93 "beta": -0.004,94 "se": null,95 "t": null,96 "p": null,97 "p_stars": "*",98 "ci_lo": null,99 "ci_hi": null,100 "page": 6,101 "confidence": "medium",102 "notes": "no SE printed, * = significant at p<0.05"103 },104 {105 "model_id": "T3-T2",106 "var_name_printed": "age",107 "taxonomy_id": "age",108 "x_transform": "level",109 "x_unit": "years",110 "beta": -0.001,111 "se": null,112 "t": null,113 "p": null,114 "p_stars": "",115 "ci_lo": null,116 "ci_hi": null,117 "page": 6,118 "confidence": "medium",119 "notes": "no SE printed, * = significant at p<0.05"120 },121 {122 "model_id": "T3-T3",123 "var_name_printed": "age",124 "taxonomy_id": "age",125 "x_transform": "level",126 "x_unit": "years",127 "beta": -0.003,128 "se": null,129 "t": null,130 "p": null,131 "p_stars": "",132 "ci_lo": null,133 "ci_hi": null,134 "page": 6,135 "confidence": "medium",136 "notes": "no SE printed, * = significant at p<0.05"137 },138 {139 "model_id": "T3-T4",140 "var_name_printed": "age",141 "taxonomy_id": "age",142 "x_transform": "level",143 "x_unit": "years",144 "beta": -0.006,145 "se": null,146 "t": null,147 "p": null,148 "p_stars": "*",149 "ci_lo": null,150 "ci_hi": null,151 "page": 6,152 "confidence": "medium",153 "notes": "no SE printed, * = significant at p<0.05"154 },155 {156 "model_id": "T3-T1",157 "var_name_printed": "squared age",158 "taxonomy_id": "age",159 "x_transform": "squared",160 "x_unit": "years",161 "beta": 4.37e-05,162 "se": null,163 "t": null,164 "p": null,165 "p_stars": "*",166 "ci_lo": null,167 "ci_hi": null,168 "page": 6,169 "confidence": "medium",170 "notes": "no SE printed, * = significant at p<0.05"171 },172 {173 "model_id": "T3-T2",174 "var_name_printed": "squared age",175 "taxonomy_id": "age",176 "x_transform": "squared",177 "x_unit": "years",178 "beta": 2.59e-05,179 "se": null,180 "t": null,181 "p": null,182 "p_stars": "",183 "ci_lo": null,184 "ci_hi": null,185 "page": 6,186 "confidence": "medium",187 "notes": "no SE printed, * = significant at p<0.05"188 },189 {190 "model_id": "T3-T3",191 "var_name_printed": "squared age",192 "taxonomy_id": "age",193 "x_transform": "squared",194 "x_unit": "years",195 "beta": 4.16e-05,196 "se": null,197 "t": null,198 "p": null,199 "p_stars": "*",200 "ci_lo": null,201 "ci_hi": null,202 "page": 6,203 "confidence": "medium",204 "notes": "no SE printed, * = significant at p<0.05"205 },206 {207 "model_id": "T3-T4",208 "var_name_printed": "squared age",209 "taxonomy_id": "age",210 "x_transform": "squared",211 "x_unit": "years",212 "beta": 8.21e-05,213 "se": null,214 "t": null,215 "p": null,216 "p_stars": "*",217 "ci_lo": null,218 "ci_hi": null,219 "page": 6,220 "confidence": "medium",221 "notes": "no SE printed, * = significant at p<0.05"222 },223 {224 "model_id": "T3-T1",225 "var_name_printed": "height",226 "taxonomy_id": "storeys",227 "x_transform": "level",228 "x_unit": "count",229 "beta": 0.125,230 "se": null,231 "t": null,232 "p": null,233 "p_stars": "*",234 "ci_lo": null,235 "ci_hi": null,236 "page": 6,237 "confidence": "medium",238 "notes": "story height (number of stories); no SE printed, * = significant at p<0.05"239 },240 {241 "model_id": "T3-T2",242 "var_name_printed": "height",243 "taxonomy_id": "storeys",244 "x_transform": "level",245 "x_unit": "count",246 "beta": 0.062,247 "se": null,248 "t": null,249 "p": null,250 "p_stars": "*",251 "ci_lo": null,252 "ci_hi": null,253 "page": 6,254 "confidence": "medium",255 "notes": "story height (number of stories); no SE printed, * = significant at p<0.05"256 },257 {258 "model_id": "T3-T3",259 "var_name_printed": "height",260 "taxonomy_id": "storeys",261 "x_transform": "level",262 "x_unit": "count",263 "beta": 0.076,264 "se": null,265 "t": null,266 "p": null,267 "p_stars": "*",268 "ci_lo": null,269 "ci_hi": null,270 "page": 6,271 "confidence": "medium",272 "notes": "story height (number of stories); no SE printed, * = significant at p<0.05"273 },274 {275 "model_id": "T3-T4",276 "var_name_printed": "height",277 "taxonomy_id": "storeys",278 "x_transform": "level",279 "x_unit": "count",280 "beta": 0.053,281 "se": null,282 "t": null,283 "p": null,284 "p_stars": "",285 "ci_lo": null,286 "ci_hi": null,287 "page": 6,288 "confidence": "medium",289 "notes": "story height (number of stories); no SE printed, * = significant at p<0.05"290 },291 {292 "model_id": "T3-T1",293 "var_name_printed": "no fuel",294 "taxonomy_id": "heating",295 "x_transform": "binary",296 "x_unit": "binary",297 "beta": -0.796,298 "se": null,299 "t": null,300 "p": null,301 "p_stars": "*",302 "ci_lo": null,303 "ci_hi": null,304 "page": 6,305 "confidence": "medium",306 "notes": "dummy for no heating fuel; no SE printed, * = significant at p<0.05"307 },308 {309 "model_id": "T3-T2",310 "var_name_printed": "no fuel",311 "taxonomy_id": "heating",312 "x_transform": "binary",313 "x_unit": "binary",314 "beta": 0.302,315 "se": null,316 "t": null,317 "p": null,318 "p_stars": "",319 "ci_lo": null,320 "ci_hi": null,321 "page": 6,322 "confidence": "medium",323 "notes": "dummy for no heating fuel; no SE printed, * = significant at p<0.05"324 },325 {326 "model_id": "T3-T3",327 "var_name_printed": "no fuel",328 "taxonomy_id": "heating",329 "x_transform": "binary",330 "x_unit": "binary",331 "beta": 0.032,332 "se": null,333 "t": null,334 "p": null,335 "p_stars": "",336 "ci_lo": null,337 "ci_hi": null,338 "page": 6,339 "confidence": "medium",340 "notes": "dummy for no heating fuel; no SE printed, * = significant at p<0.05"341 },342 {343 "model_id": "T3-T4",344 "var_name_printed": "no fuel",345 "taxonomy_id": "heating",346 "x_transform": "binary",347 "x_unit": "binary",348 "beta": -0.794,349 "se": null,350 "t": null,351 "p": null,352 "p_stars": "*",353 "ci_lo": null,354 "ci_hi": null,355 "page": 6,356 "confidence": "medium",357 "notes": "dummy for no heating fuel; no SE printed, * = significant at p<0.05"358 },359 {360 "model_id": "T3-T1",361 "var_name_printed": "central air conditioning",362 "taxonomy_id": "air_conditioning",363 "x_transform": "binary",364 "x_unit": "binary",365 "beta": 0.045,366 "se": null,367 "t": null,368 "p": null,369 "p_stars": "*",370 "ci_lo": null,371 "ci_hi": null,372 "page": 6,373 "confidence": "medium",374 "notes": "no SE printed, * = significant at p<0.05"375 },376 {377 "model_id": "T3-T2",378 "var_name_printed": "central air conditioning",379 "taxonomy_id": "air_conditioning",380 "x_transform": "binary",381 "x_unit": "binary",382 "beta": 0.08,383 "se": null,384 "t": null,385 "p": null,386 "p_stars": "*",387 "ci_lo": null,388 "ci_hi": null,389 "page": 6,390 "confidence": "medium",391 "notes": "no SE printed, * = significant at p<0.05"392 },393 {394 "model_id": "T3-T3",395 "var_name_printed": "central air conditioning",396 "taxonomy_id": "air_conditioning",397 "x_transform": "binary",398 "x_unit": "binary",399 "beta": 0.09,400 "se": null,401 "t": null,402 "p": null,403 "p_stars": "*",404 "ci_lo": null,405 "ci_hi": null,406 "page": 6,407 "confidence": "medium",408 "notes": "no SE printed, * = significant at p<0.05"409 },410 {411 "model_id": "T3-T4",412 "var_name_printed": "central air conditioning",413 "taxonomy_id": "air_conditioning",414 "x_transform": "binary",415 "x_unit": "binary",416 "beta": 0.101,417 "se": null,418 "t": null,419 "p": null,420 "p_stars": "*",421 "ci_lo": null,422 "ci_hi": null,423 "page": 6,424 "confidence": "medium",425 "notes": "no SE printed, * = significant at p<0.05"426 },427 {428 "model_id": "T3-T1",429 "var_name_printed": "building grade",430 "taxonomy_id": "condition",431 "x_transform": "level",432 "x_unit": "ordinal (1-5)",433 "beta": 0.034,434 "se": null,435 "t": null,436 "p": null,437 "p_stars": "*",438 "ci_lo": null,439 "ci_hi": null,440 "page": 6,441 "confidence": "medium",442 "notes": "quality of structure, below average to excellent (1-5); no SE printed, * = significant at p<0.05"443 },444 {445 "model_id": "T3-T2",446 "var_name_printed": "building grade",447 "taxonomy_id": "condition",448 "x_transform": "level",449 "x_unit": "ordinal (1-5)",450 "beta": 0.027,451 "se": null,452 "t": null,453 "p": null,454 "p_stars": "*",455 "ci_lo": null,456 "ci_hi": null,457 "page": 6,458 "confidence": "medium",459 "notes": "quality of structure, below average to excellent (1-5); no SE printed, * = significant at p<0.05"460 },461 {462 "model_id": "T3-T3",463 "var_name_printed": "building grade",464 "taxonomy_id": "condition",465 "x_transform": "level",466 "x_unit": "ordinal (1-5)",467 "beta": 0.032,468 "se": null,469 "t": null,470 "p": null,471 "p_stars": "*",472 "ci_lo": null,473 "ci_hi": null,474 "page": 6,475 "confidence": "medium",476 "notes": "quality of structure, below average to excellent (1-5); no SE printed, * = significant at p<0.05"477 },478 {479 "model_id": "T3-T4",480 "var_name_printed": "building grade",481 "taxonomy_id": "condition",482 "x_transform": "level",483 "x_unit": "ordinal (1-5)",484 "beta": 0.059,485 "se": null,486 "t": null,487 "p": null,488 "p_stars": "*",489 "ci_lo": null,490 "ci_hi": null,491 "page": 6,492 "confidence": "medium",493 "notes": "quality of structure, below average to excellent (1-5); no SE printed, * = significant at p<0.05"494 },495 {496 "model_id": "T3-T1",497 "var_name_printed": "# fireplaces",498 "taxonomy_id": "fireplace",499 "x_transform": "level",500 "x_unit": "count",501 "beta": 0.089,502 "se": null,503 "t": null,504 "p": null,505 "p_stars": "*",506 "ci_lo": null,507 "ci_hi": null,508 "page": 6,509 "confidence": "medium",510 "notes": "no SE printed, * = significant at p<0.05"511 },512 {513 "model_id": "T3-T2",514 "var_name_printed": "# fireplaces",515 "taxonomy_id": "fireplace",516 "x_transform": "level",517 "x_unit": "count",518 "beta": 0.064,519 "se": null,520 "t": null,521 "p": null,522 "p_stars": "*",523 "ci_lo": null,524 "ci_hi": null,525 "page": 6,526 "confidence": "medium",527 "notes": "no SE printed, * = significant at p<0.05"528 },529 {530 "model_id": "T3-T3",531 "var_name_printed": "# fireplaces",532 "taxonomy_id": "fireplace",533 "x_transform": "level",534 "x_unit": "count",535 "beta": 0.057,536 "se": null,537 "t": null,538 "p": null,539 "p_stars": "*",540 "ci_lo": null,541 "ci_hi": null,542 "page": 6,543 "confidence": "medium",544 "notes": "no SE printed, * = significant at p<0.05"545 },546 {547 "model_id": "T3-T4",548 "var_name_printed": "# fireplaces",549 "taxonomy_id": "fireplace",550 "x_transform": "level",551 "x_unit": "count",552 "beta": 0.004,553 "se": null,554 "t": null,555 "p": null,556 "p_stars": "",557 "ci_lo": null,558 "ci_hi": null,559 "page": 6,560 "confidence": "medium",561 "notes": "no SE printed, * = significant at p<0.05"562 },563 {564 "model_id": "T3-T1",565 "var_name_printed": "ln (heated area)",566 "taxonomy_id": "living_area",567 "x_transform": "log",568 "x_unit": "sqft",569 "beta": 0.337,570 "se": null,571 "t": null,572 "p": null,573 "p_stars": "*",574 "ci_lo": null,575 "ci_hi": null,576 "page": 6,577 "confidence": "medium",578 "notes": "heated area in square feet, log; no SE printed, * = significant at p<0.05"579 },580 {581 "model_id": "T3-T2",582 "var_name_printed": "ln (heated area)",583 "taxonomy_id": "living_area",584 "x_transform": "log",585 "x_unit": "sqft",586 "beta": 0.392,587 "se": null,588 "t": null,589 "p": null,590 "p_stars": "*",591 "ci_lo": null,592 "ci_hi": null,593 "page": 6,594 "confidence": "medium",595 "notes": "heated area in square feet, log; no SE printed, * = significant at p<0.05"596 },597 {598 "model_id": "T3-T3",599 "var_name_printed": "ln (heated area)",600 "taxonomy_id": "living_area",601 "x_transform": "log",602 "x_unit": "sqft",603 "beta": 0.338,604 "se": null,605 "t": null,606 "p": null,607 "p_stars": "*",608 "ci_lo": null,609 "ci_hi": null,610 "page": 6,611 "confidence": "medium",612 "notes": "heated area in square feet, log; no SE printed, * = significant at p<0.05"613 },614 {615 "model_id": "T3-T4",616 "var_name_printed": "ln (heated area)",617 "taxonomy_id": "living_area",618 "x_transform": "log",619 "x_unit": "sqft",620 "beta": 0.455,621 "se": null,622 "t": null,623 "p": null,624 "p_stars": "*",625 "ci_lo": null,626 "ci_hi": null,627 "page": 6,628 "confidence": "medium",629 "notes": "heated area in square feet, log; no SE printed, * = significant at p<0.05"630 },631 {632 "model_id": "T3-T1",633 "var_name_printed": "ln (network distance)",634 "taxonomy_id": "transit_distance",635 "x_transform": "log",636 "x_unit": "ft",637 "beta": 0.123,638 "se": 0.028,639 "t": null,640 "p": null,641 "p_stars": "*",642 "ci_lo": null,643 "ci_hi": null,644 "page": 6,645 "confidence": "high",646 "notes": "log of network distance (feet) to nearest light rail station; SE printed in table; * = p<0.05"647 },648 {649 "model_id": "T3-T2",650 "var_name_printed": "ln (network distance)",651 "taxonomy_id": "transit_distance",652 "x_transform": "log",653 "x_unit": "ft",654 "beta": 0.169,655 "se": 0.022,656 "t": null,657 "p": null,658 "p_stars": "*",659 "ci_lo": null,660 "ci_hi": null,661 "page": 6,662 "confidence": "high",663 "notes": "log of network distance (feet) to nearest light rail station; SE printed in table; * = p<0.05"664 },665 {666 "model_id": "T3-T3",667 "var_name_printed": "ln (network distance)",668 "taxonomy_id": "transit_distance",669 "x_transform": "log",670 "x_unit": "ft",671 "beta": 0.148,672 "se": 0.027,673 "t": null,674 "p": null,675 "p_stars": "*",676 "ci_lo": null,677 "ci_hi": null,678 "page": 6,679 "confidence": "high",680 "notes": "log of network distance (feet) to nearest light rail station; SE printed in table; * = p<0.05"681 },682 {683 "model_id": "T3-T4",684 "var_name_printed": "ln (network distance)",685 "taxonomy_id": "transit_distance",686 "x_transform": "log",687 "x_unit": "ft",688 "beta": 0.052,689 "se": 0.033,690 "t": null,691 "p": null,692 "p_stars": "",693 "ci_lo": null,694 "ci_hi": null,695 "page": 6,696 "confidence": "high",697 "notes": "log of network distance (feet) to nearest light rail station; SE printed in table; * = p<0.05"698 }699 ]700}