1{2 "record_id": "1196e55c7401009f4e60d7c8db96469c1e13b00e",3 "eligible": true,4 "exclusion_reason": null,5 "study": {6 "title": "Capitalization of Open Spaces into Housing Values and the Residential Property Tax Revenue Impacts of Agricultural Easement Programs",7 "year": 2003,8 "doi": "10.1017/s1068280500002483",9 "country": "United States",10 "region_city": "Calvert, Carroll and Howard counties, Maryland",11 "sample_start": 1993,12 "sample_end": 1996,13 "property_type": "single_family",14 "price_type": "transaction",15 "data_source": "Maryland Department of Planning parcel/sales database (MdProperty View), 10,135 arm's-length transactions July 1993-June 1996",16 "document_type": "journal",17 "estimators": [18 "OLS",19 "spatial_error"20 ],21 "spatial_method": "spatial error model (u = lambda*W*u + e), row-standardised inverse-distance weights, 1,000 m cut-off, ML",22 "time_fe": true,23 "location_fe": false,24 "se_type": "unknown",25 "n_obs_total": 10135,26 "ai_methods": [],27 "notes": "Log-log hedonic estimated separately by county (Tables 3-5), OLS and spatial error model for each. t-statistics printed in a separate column (asymptotic t for the spatial model). * = significant at the 5% level (only star level). Semi-annual time dummies included, not reported. Large-buffer open-space variables (P_LGPERMOPEN, P_LGAGFOREST; also P_SMAGFOREST in Howard) are predicted values from a first-stage instrumental-variable regression (Hausman test). Property type: residential parcels with structures (assessor data); assumed single-family. n_obs by county: Calvert 1,676; Carroll 3,133; Howard 5,326."28 },29 "models": [30 {31 "model_id": "T3-c1",32 "table": "3",33 "column": "1",34 "page": 8,35 "dep_var": "LN_PRICE (natural log of full transaction price, USD)",36 "dep_transform": "log",37 "estimator": "OLS",38 "n_obs": 1676,39 "r2": 0.7549,40 "se_or_t_in_parentheses": "t",41 "sample_subset": "Calvert County, OLS; adjusted R2"42 },43 {44 "model_id": "T3-c2",45 "table": "3",46 "column": "2",47 "page": 8,48 "dep_var": "LN_PRICE (natural log of full transaction price, USD)",49 "dep_transform": "log",50 "estimator": "spatial_error",51 "n_obs": 1676,52 "r2": 0.7785,53 "se_or_t_in_parentheses": "t",54 "sample_subset": "Calvert County, spatial error model (lambda 0.4067); adjusted R2"55 },56 {57 "model_id": "T4-c1",58 "table": "4",59 "column": "1",60 "page": 8,61 "dep_var": "LN_PRICE (natural log of full transaction price, USD)",62 "dep_transform": "log",63 "estimator": "OLS",64 "n_obs": 3133,65 "r2": 0.7394,66 "se_or_t_in_parentheses": "t",67 "sample_subset": "Carroll County, OLS; adjusted R2"68 },69 {70 "model_id": "T4-c2",71 "table": "4",72 "column": "2",73 "page": 8,74 "dep_var": "LN_PRICE (natural log of full transaction price, USD)",75 "dep_transform": "log",76 "estimator": "spatial_error",77 "n_obs": 3133,78 "r2": 0.7458,79 "se_or_t_in_parentheses": "t",80 "sample_subset": "Carroll County, spatial error model (lambda 0.2149); adjusted R2"81 },82 {83 "model_id": "T5-c1",84 "table": "5",85 "column": "1",86 "page": 9,87 "dep_var": "LN_PRICE (natural log of full transaction price, USD)",88 "dep_transform": "log",89 "estimator": "OLS",90 "n_obs": 5326,91 "r2": 0.739,92 "se_or_t_in_parentheses": "t",93 "sample_subset": "Howard County, OLS; adjusted R2"94 },95 {96 "model_id": "T5-c2",97 "table": "5",98 "column": "2",99 "page": 9,100 "dep_var": "LN_PRICE (natural log of full transaction price, USD)",101 "dep_transform": "log",102 "estimator": "spatial_error",103 "n_obs": 5326,104 "r2": 0.7741,105 "se_or_t_in_parentheses": "t",106 "sample_subset": "Howard County, spatial error model (lambda 0.6339); adjusted R2"107 }108 ],109 "coefficients": [110 {111 "model_id": "T3-c1",112 "var_name_printed": "P_LGPERMOPEN",113 "taxonomy_id": "green_space",114 "x_transform": "level",115 "x_unit": "share",116 "beta": 0.6303,117 "se": null,118 "t": 3.59,119 "p": null,120 "p_stars": "*",121 "ci_lo": null,122 "ci_hi": null,123 "page": 8,124 "confidence": "high",125 "notes": "Share of permanently preserved open space within 1,600 m buffer; predicted (IV) value"126 },127 {128 "model_id": "T3-c1",129 "var_name_printed": "SMPERMOPEN",130 "taxonomy_id": "green_space",131 "x_transform": "level",132 "x_unit": "share",133 "beta": -0.1134,134 "se": null,135 "t": -1.72,136 "p": null,137 "p_stars": "",138 "ci_lo": null,139 "ci_hi": null,140 "page": 8,141 "confidence": "high",142 "notes": "Share of permanently preserved open space within 100 m buffer"143 },144 {145 "model_id": "T3-c1",146 "var_name_printed": "P_LGAGFOREST",147 "taxonomy_id": "green_space",148 "x_transform": "level",149 "x_unit": "share",150 "beta": -0.3492,151 "se": null,152 "t": -7.42,153 "p": null,154 "p_stars": "*",155 "ci_lo": null,156 "ci_hi": null,157 "page": 8,158 "confidence": "high",159 "notes": "Share of non-preserved agricultural and forest land within 1,600 m buffer; predicted (IV) value"160 },161 {162 "model_id": "T3-c1",163 "var_name_printed": "SMAGFOREST",164 "taxonomy_id": "green_space",165 "x_transform": "level",166 "x_unit": "share",167 "beta": -0.0482,168 "se": null,169 "t": -2.38,170 "p": null,171 "p_stars": "",172 "ci_lo": null,173 "ci_hi": null,174 "page": 8,175 "confidence": "high",176 "notes": "Share of non-preserved agricultural and forest land within 100 m buffer; no star printed despite |t| > 1.96 (as printed)"177 },178 {179 "model_id": "T3-c1",180 "var_name_printed": "LN_ACRE",181 "taxonomy_id": "lot_size",182 "x_transform": "log",183 "x_unit": "acres",184 "beta": 0.0982,185 "se": null,186 "t": 13.83,187 "p": null,188 "p_stars": "*",189 "ci_lo": null,190 "ci_hi": null,191 "page": 8,192 "confidence": "high",193 "notes": "Natural log of parcel size in acres"194 },195 {196 "model_id": "T3-c1",197 "var_name_printed": "LN_AGE",198 "taxonomy_id": "age",199 "x_transform": "log",200 "x_unit": "years",201 "beta": -0.0226,202 "se": null,203 "t": -5.31,204 "p": null,205 "p_stars": "*",206 "ci_lo": null,207 "ci_hi": null,208 "page": 8,209 "confidence": "high",210 "notes": "Natural log of age of structure in years"211 },212 {213 "model_id": "T3-c1",214 "var_name_printed": "LN_SQFT",215 "taxonomy_id": "living_area",216 "x_transform": "log",217 "x_unit": "sqft",218 "beta": 0.3894,219 "se": null,220 "t": 20.46,221 "p": null,222 "p_stars": "*",223 "ci_lo": null,224 "ci_hi": null,225 "page": 8,226 "confidence": "high",227 "notes": "Natural log of structure size in square feet"228 },229 {230 "model_id": "T3-c1",231 "var_name_printed": "AVERAGE",232 "taxonomy_id": "condition",233 "x_transform": "dummy",234 "x_unit": "binary",235 "beta": 0.2106,236 "se": null,237 "t": 13.88,238 "p": null,239 "p_stars": "*",240 "ci_lo": null,241 "ci_hi": null,242 "page": 8,243 "confidence": "high",244 "notes": "Assessor quality grade average (omitted category: fair)"245 },246 {247 "model_id": "T3-c1",248 "var_name_printed": "GOOD_VGOOD",249 "taxonomy_id": "condition",250 "x_transform": "dummy",251 "x_unit": "binary",252 "beta": 0.4859,253 "se": null,254 "t": 12.29,255 "p": null,256 "p_stars": "*",257 "ci_lo": null,258 "ci_hi": null,259 "page": 8,260 "confidence": "high",261 "notes": "Assessor quality grade good or very good (omitted: fair)"262 },263 {264 "model_id": "T3-c1",265 "var_name_printed": "NUSTORY",266 "taxonomy_id": "storeys",267 "x_transform": "level",268 "x_unit": "count",269 "beta": 0.079,270 "se": null,271 "t": 5.99,272 "p": null,273 "p_stars": "*",274 "ci_lo": null,275 "ci_hi": null,276 "page": 8,277 "confidence": "high",278 "notes": "Number of stories"279 },280 {281 "model_id": "T3-c1",282 "var_name_printed": "BASEMENT",283 "taxonomy_id": "basement",284 "x_transform": "binary",285 "x_unit": "binary",286 "beta": -0.0126,287 "se": null,288 "t": -1.12,289 "p": null,290 "p_stars": "",291 "ci_lo": null,292 "ci_hi": null,293 "page": 8,294 "confidence": "high",295 "notes": ""296 },297 {298 "model_id": "T3-c1",299 "var_name_printed": "FRAME",300 "taxonomy_id": "roof_materials",301 "x_transform": "binary",302 "x_unit": "binary",303 "beta": -0.0052,304 "se": null,305 "t": -0.22,306 "p": null,307 "p_stars": "",308 "ci_lo": null,309 "ci_hi": null,310 "page": 8,311 "confidence": "high",312 "notes": "Framed structure (omitted: all other construction types)"313 },314 {315 "model_id": "T3-c1",316 "var_name_printed": "ALUM",317 "taxonomy_id": "roof_materials",318 "x_transform": "binary",319 "x_unit": "binary",320 "beta": -0.0422,321 "se": null,322 "t": -1.82,323 "p": null,324 "p_stars": "",325 "ci_lo": null,326 "ci_hi": null,327 "page": 8,328 "confidence": "high",329 "notes": "Aluminum-sided structure (omitted: all other construction types)"330 },331 {332 "model_id": "T3-c1",333 "var_name_printed": "LN_POPDEN",334 "taxonomy_id": "density",335 "x_transform": "log",336 "x_unit": "households per sq mile",337 "beta": -0.0396,338 "se": null,339 "t": -3.67,340 "p": null,341 "p_stars": "*",342 "ci_lo": null,343 "ci_hi": null,344 "page": 8,345 "confidence": "high",346 "notes": "Natural log of census tract/block-group population density (households per square mile)"347 },348 {349 "model_id": "T3-c1",350 "var_name_printed": "%EDUCB",351 "taxonomy_id": "education_level",352 "x_transform": "level",353 "x_unit": "share",354 "beta": 0.9934,355 "se": null,356 "t": 3.94,357 "p": null,358 "p_stars": "*",359 "ci_lo": null,360 "ci_hi": null,361 "page": 8,362 "confidence": "high",363 "notes": "Share of population with bachelor's degree or higher (1990 Census block group)"364 },365 {366 "model_id": "T3-c1",367 "var_name_printed": "MEDHSINC",368 "taxonomy_id": "income",369 "x_transform": "level",370 "x_unit": "USD",371 "beta": 0.0,372 "se": null,373 "t": -0.3,374 "p": null,375 "p_stars": "",376 "ci_lo": null,377 "ci_hi": null,378 "page": 8,379 "confidence": "medium",380 "notes": "Median household income of census tract in dollars; coefficient printed as 0.0000 (rounded) in most columns; beta printed as 0.0000 — magnitude not recoverable, use t only"381 },382 {383 "model_id": "T3-c1",384 "var_name_printed": "LN_CITYDIST",385 "taxonomy_id": "cbd_distance",386 "x_transform": "log",387 "x_unit": "km",388 "beta": -0.1669,389 "se": null,390 "t": -4.27,391 "p": null,392 "p_stars": "*",393 "ci_lo": null,394 "ci_hi": null,395 "page": 8,396 "confidence": "high",397 "notes": "Natural log of Euclidean distance to nearest of Washington DC or Baltimore; printed in units of 100 km (log, so scale does not affect the elasticity)"398 },399 {400 "model_id": "T3-c1",401 "var_name_printed": "LN_TOWNDIST",402 "taxonomy_id": "other",403 "x_transform": "log",404 "x_unit": "km",405 "beta": 0.0241,406 "se": null,407 "t": 2.67,408 "p": null,409 "p_stars": "*",410 "ci_lo": null,411 "ci_hi": null,412 "page": 8,413 "confidence": "high",414 "notes": "Natural log of distance to nearest town (units of 100 km)"415 },416 {417 "model_id": "T3-c2",418 "var_name_printed": "P_LGPERMOPEN",419 "taxonomy_id": "green_space",420 "x_transform": "level",421 "x_unit": "share",422 "beta": 0.7118,423 "se": null,424 "t": 2.83,425 "p": null,426 "p_stars": "*",427 "ci_lo": null,428 "ci_hi": null,429 "page": 8,430 "confidence": "high",431 "notes": "Share of permanently preserved open space within 1,600 m buffer; predicted (IV) value"432 },433 {434 "model_id": "T3-c2",435 "var_name_printed": "SMPERMOPEN",436 "taxonomy_id": "green_space",437 "x_transform": "level",438 "x_unit": "share",439 "beta": -0.1117,440 "se": null,441 "t": -1.67,442 "p": null,443 "p_stars": "",444 "ci_lo": null,445 "ci_hi": null,446 "page": 8,447 "confidence": "high",448 "notes": "Share of permanently preserved open space within 100 m buffer"449 },450 {451 "model_id": "T3-c2",452 "var_name_printed": "P_LGAGFOREST",453 "taxonomy_id": "green_space",454 "x_transform": "level",455 "x_unit": "share",456 "beta": -0.3907,457 "se": null,458 "t": -6.03,459 "p": null,460 "p_stars": "*",461 "ci_lo": null,462 "ci_hi": null,463 "page": 8,464 "confidence": "high",465 "notes": "Share of non-preserved agricultural and forest land within 1,600 m buffer; predicted (IV) value"466 },467 {468 "model_id": "T3-c2",469 "var_name_printed": "SMAGFOREST",470 "taxonomy_id": "green_space",471 "x_transform": "level",472 "x_unit": "share",473 "beta": -0.0496,474 "se": null,475 "t": -2.42,476 "p": null,477 "p_stars": "",478 "ci_lo": null,479 "ci_hi": null,480 "page": 8,481 "confidence": "high",482 "notes": "Share of non-preserved agricultural and forest land within 100 m buffer; no star printed despite |t| > 1.96 (as printed)"483 },484 {485 "model_id": "T3-c2",486 "var_name_printed": "LN_ACRE",487 "taxonomy_id": "lot_size",488 "x_transform": "log",489 "x_unit": "acres",490 "beta": 0.1002,491 "se": null,492 "t": 12.87,493 "p": null,494 "p_stars": "*",495 "ci_lo": null,496 "ci_hi": null,497 "page": 8,498 "confidence": "high",499 "notes": "Natural log of parcel size in acres"500 },501 {502 "model_id": "T3-c2",503 "var_name_printed": "LN_AGE",504 "taxonomy_id": "age",505 "x_transform": "log",506 "x_unit": "years",507 "beta": -0.0287,508 "se": null,509 "t": -6.28,510 "p": null,511 "p_stars": "*",512 "ci_lo": null,513 "ci_hi": null,514 "page": 8,515 "confidence": "high",516 "notes": "Natural log of age of structure in years"517 },518 {519 "model_id": "T3-c2",520 "var_name_printed": "LN_SQFT",521 "taxonomy_id": "living_area",522 "x_transform": "log",523 "x_unit": "sqft",524 "beta": 0.3765,525 "se": null,526 "t": 19.49,527 "p": null,528 "p_stars": "*",529 "ci_lo": null,530 "ci_hi": null,531 "page": 8,532 "confidence": "high",533 "notes": "Natural log of structure size in square feet"534 },535 {536 "model_id": "T3-c2",537 "var_name_printed": "AVERAGE",538 "taxonomy_id": "condition",539 "x_transform": "dummy",540 "x_unit": "binary",541 "beta": 0.202,542 "se": null,543 "t": 12.94,544 "p": null,545 "p_stars": "*",546 "ci_lo": null,547 "ci_hi": null,548 "page": 8,549 "confidence": "high",550 "notes": "Assessor quality grade average (omitted category: fair)"551 },552 {553 "model_id": "T3-c2",554 "var_name_printed": "GOOD_VGOOD",555 "taxonomy_id": "condition",556 "x_transform": "dummy",557 "x_unit": "binary",558 "beta": 0.4699,559 "se": null,560 "t": 11.56,561 "p": null,562 "p_stars": "*",563 "ci_lo": null,564 "ci_hi": null,565 "page": 8,566 "confidence": "high",567 "notes": "Assessor quality grade good or very good (omitted: fair)"568 },569 {570 "model_id": "T3-c2",571 "var_name_printed": "NUSTORY",572 "taxonomy_id": "storeys",573 "x_transform": "level",574 "x_unit": "count",575 "beta": 0.0655,576 "se": null,577 "t": 5.14,578 "p": null,579 "p_stars": "*",580 "ci_lo": null,581 "ci_hi": null,582 "page": 8,583 "confidence": "high",584 "notes": "Number of stories"585 },586 {587 "model_id": "T3-c2",588 "var_name_printed": "BASEMENT",589 "taxonomy_id": "basement",590 "x_transform": "binary",591 "x_unit": "binary",592 "beta": -0.0008,593 "se": null,594 "t": -0.07,595 "p": null,596 "p_stars": "",597 "ci_lo": null,598 "ci_hi": null,599 "page": 8,600 "confidence": "high",601 "notes": ""602 },603 {604 "model_id": "T3-c2",605 "var_name_printed": "FRAME",606 "taxonomy_id": "roof_materials",607 "x_transform": "binary",608 "x_unit": "binary",609 "beta": -0.0311,610 "se": null,611 "t": -1.36,612 "p": null,613 "p_stars": "",614 "ci_lo": null,615 "ci_hi": null,616 "page": 8,617 "confidence": "high",618 "notes": "Framed structure (omitted: all other construction types)"619 },620 {621 "model_id": "T3-c2",622 "var_name_printed": "ALUM",623 "taxonomy_id": "roof_materials",624 "x_transform": "binary",625 "x_unit": "binary",626 "beta": -0.0464,627 "se": null,628 "t": -2.07,629 "p": null,630 "p_stars": "",631 "ci_lo": null,632 "ci_hi": null,633 "page": 8,634 "confidence": "high",635 "notes": "Aluminum-sided structure (omitted: all other construction types); no star printed despite |t| > 1.96 (as printed)"636 },637 {638 "model_id": "T3-c2",639 "var_name_printed": "LN_POPDEN",640 "taxonomy_id": "density",641 "x_transform": "log",642 "x_unit": "households per sq mile",643 "beta": -0.0393,644 "se": null,645 "t": -2.85,646 "p": null,647 "p_stars": "*",648 "ci_lo": null,649 "ci_hi": null,650 "page": 8,651 "confidence": "high",652 "notes": "Natural log of census tract/block-group population density (households per square mile)"653 },654 {655 "model_id": "T3-c2",656 "var_name_printed": "%EDUCB",657 "taxonomy_id": "education_level",658 "x_transform": "level",659 "x_unit": "share",660 "beta": 1.0015,661 "se": null,662 "t": 2.83,663 "p": null,664 "p_stars": "*",665 "ci_lo": null,666 "ci_hi": null,667 "page": 8,668 "confidence": "high",669 "notes": "Share of population with bachelor's degree or higher (1990 Census block group)"670 },671 {672 "model_id": "T3-c2",673 "var_name_printed": "MEDHSINC",674 "taxonomy_id": "income",675 "x_transform": "level",676 "x_unit": "USD",677 "beta": 0.0,678 "se": null,679 "t": -0.18,680 "p": null,681 "p_stars": "",682 "ci_lo": null,683 "ci_hi": null,684 "page": 8,685 "confidence": "medium",686 "notes": "Median household income of census tract in dollars; coefficient printed as 0.0000 (rounded) in most columns; beta printed as 0.0000 — magnitude not recoverable, use t only"687 },688 {689 "model_id": "T3-c2",690 "var_name_printed": "LN_CITYDIST",691 "taxonomy_id": "cbd_distance",692 "x_transform": "log",693 "x_unit": "km",694 "beta": -0.1432,695 "se": null,696 "t": -2.59,697 "p": null,698 "p_stars": "*",699 "ci_lo": null,700 "ci_hi": null,701 "page": 8,702 "confidence": "high",703 "notes": "Natural log of Euclidean distance to nearest of Washington DC or Baltimore; printed in units of 100 km (log, so scale does not affect the elasticity)"704 },705 {706 "model_id": "T3-c2",707 "var_name_printed": "LN_TOWNDIST",708 "taxonomy_id": "other",709 "x_transform": "log",710 "x_unit": "km",711 "beta": 0.0265,712 "se": null,713 "t": 2.02,714 "p": null,715 "p_stars": "",716 "ci_lo": null,717 "ci_hi": null,718 "page": 8,719 "confidence": "high",720 "notes": "Natural log of distance to nearest town (units of 100 km); no star printed despite |t| > 1.96 (as printed)"721 },722 {723 "model_id": "T4-c1",724 "var_name_printed": "P_LGPERMOPEN",725 "taxonomy_id": "green_space",726 "x_transform": "level",727 "x_unit": "share",728 "beta": -0.1181,729 "se": null,730 "t": -1.86,731 "p": null,732 "p_stars": "",733 "ci_lo": null,734 "ci_hi": null,735 "page": 8,736 "confidence": "high",737 "notes": "Share of permanently preserved open space within 1,600 m buffer; predicted (IV) value"738 },739 {740 "model_id": "T4-c1",741 "var_name_printed": "SMPERMOPEN",742 "taxonomy_id": "green_space",743 "x_transform": "level",744 "x_unit": "share",745 "beta": 0.0443,746 "se": null,747 "t": 2.01,748 "p": null,749 "p_stars": "",750 "ci_lo": null,751 "ci_hi": null,752 "page": 8,753 "confidence": "high",754 "notes": "Share of permanently preserved open space within 100 m buffer; no star printed despite |t| > 1.96 (as printed)"755 },756 {757 "model_id": "T4-c1",758 "var_name_printed": "P_LGAGFOREST",759 "taxonomy_id": "green_space",760 "x_transform": "level",761 "x_unit": "share",762 "beta": -0.1932,763 "se": null,764 "t": -3.39,765 "p": null,766 "p_stars": "*",767 "ci_lo": null,768 "ci_hi": null,769 "page": 8,770 "confidence": "high",771 "notes": "Share of non-preserved agricultural and forest land within 1,600 m buffer; predicted (IV) value"772 },773 {774 "model_id": "T4-c1",775 "var_name_printed": "SMAGFOREST",776 "taxonomy_id": "green_space",777 "x_transform": "level",778 "x_unit": "share",779 "beta": 0.0027,780 "se": null,781 "t": 0.2,782 "p": null,783 "p_stars": "",784 "ci_lo": null,785 "ci_hi": null,786 "page": 8,787 "confidence": "high",788 "notes": "Share of non-preserved agricultural and forest land within 100 m buffer"789 },790 {791 "model_id": "T4-c1",792 "var_name_printed": "LN_ACRE",793 "taxonomy_id": "lot_size",794 "x_transform": "log",795 "x_unit": "acres",796 "beta": 0.1334,797 "se": null,798 "t": 31.68,799 "p": null,800 "p_stars": "*",801 "ci_lo": null,802 "ci_hi": null,803 "page": 8,804 "confidence": "high",805 "notes": "Natural log of parcel size in acres"806 },807 {808 "model_id": "T4-c1",809 "var_name_printed": "LN_AGE",810 "taxonomy_id": "age",811 "x_transform": "log",812 "x_unit": "years",813 "beta": -0.0641,814 "se": null,815 "t": -21.8,816 "p": null,817 "p_stars": "*",818 "ci_lo": null,819 "ci_hi": null,820 "page": 8,821 "confidence": "high",822 "notes": "Natural log of age of structure in years"823 },824 {825 "model_id": "T4-c1",826 "var_name_printed": "LN_SQFT",827 "taxonomy_id": "living_area",828 "x_transform": "log",829 "x_unit": "sqft",830 "beta": 0.2692,831 "se": null,832 "t": 24.29,833 "p": null,834 "p_stars": "*",835 "ci_lo": null,836 "ci_hi": null,837 "page": 8,838 "confidence": "high",839 "notes": "Natural log of structure size in square feet"840 },841 {842 "model_id": "T4-c1",843 "var_name_printed": "AVERAGE",844 "taxonomy_id": "condition",845 "x_transform": "dummy",846 "x_unit": "binary",847 "beta": 0.1546,848 "se": null,849 "t": 17.51,850 "p": null,851 "p_stars": "*",852 "ci_lo": null,853 "ci_hi": null,854 "page": 8,855 "confidence": "high",856 "notes": "Assessor quality grade average (omitted category: fair)"857 },858 {859 "model_id": "T4-c1",860 "var_name_printed": "GOOD_VGOOD",861 "taxonomy_id": "condition",862 "x_transform": "dummy",863 "x_unit": "binary",864 "beta": 0.4036,865 "se": null,866 "t": 17.17,867 "p": null,868 "p_stars": "*",869 "ci_lo": null,870 "ci_hi": null,871 "page": 8,872 "confidence": "high",873 "notes": "Assessor quality grade good or very good (omitted: fair)"874 },875 {876 "model_id": "T4-c1",877 "var_name_printed": "NUSTORY",878 "taxonomy_id": "storeys",879 "x_transform": "level",880 "x_unit": "count",881 "beta": -0.0212,882 "se": null,883 "t": -2.52,884 "p": null,885 "p_stars": "",886 "ci_lo": null,887 "ci_hi": null,888 "page": 8,889 "confidence": "high",890 "notes": "Number of stories; no star printed despite |t| > 1.96 (as printed)"891 },892 {893 "model_id": "T4-c1",894 "var_name_printed": "BASEMENT",895 "taxonomy_id": "basement",896 "x_transform": "binary",897 "x_unit": "binary",898 "beta": 0.1324,899 "se": null,900 "t": 8.74,901 "p": null,902 "p_stars": "*",903 "ci_lo": null,904 "ci_hi": null,905 "page": 8,906 "confidence": "high",907 "notes": ""908 },909 {910 "model_id": "T4-c1",911 "var_name_printed": "FRAME",912 "taxonomy_id": "roof_materials",913 "x_transform": "binary",914 "x_unit": "binary",915 "beta": -0.0528,916 "se": null,917 "t": -4.05,918 "p": null,919 "p_stars": "*",920 "ci_lo": null,921 "ci_hi": null,922 "page": 8,923 "confidence": "high",924 "notes": "Framed structure (omitted: all other construction types)"925 },926 {927 "model_id": "T4-c1",928 "var_name_printed": "ALUM",929 "taxonomy_id": "roof_materials",930 "x_transform": "binary",931 "x_unit": "binary",932 "beta": -0.0015,933 "se": null,934 "t": -0.16,935 "p": null,936 "p_stars": "",937 "ci_lo": null,938 "ci_hi": null,939 "page": 8,940 "confidence": "high",941 "notes": "Aluminum-sided structure (omitted: all other construction types)"942 },943 {944 "model_id": "T4-c1",945 "var_name_printed": "LN_POPDEN",946 "taxonomy_id": "density",947 "x_transform": "log",948 "x_unit": "households per sq mile",949 "beta": 0.0286,950 "se": null,951 "t": 4.75,952 "p": null,953 "p_stars": "*",954 "ci_lo": null,955 "ci_hi": null,956 "page": 8,957 "confidence": "high",958 "notes": "Natural log of census tract/block-group population density (households per square mile)"959 },960 {961 "model_id": "T4-c1",962 "var_name_printed": "%EDUCB",963 "taxonomy_id": "education_level",964 "x_transform": "level",965 "x_unit": "share",966 "beta": 0.0814,967 "se": null,968 "t": 0.62,969 "p": null,970 "p_stars": "",971 "ci_lo": null,972 "ci_hi": null,973 "page": 8,974 "confidence": "high",975 "notes": "Share of population with bachelor's degree or higher (1990 Census block group)"976 },977 {978 "model_id": "T4-c1",979 "var_name_printed": "MEDHSINC",980 "taxonomy_id": "income",981 "x_transform": "level",982 "x_unit": "USD",983 "beta": 0.0,984 "se": null,985 "t": 6.82,986 "p": null,987 "p_stars": "*",988 "ci_lo": null,989 "ci_hi": null,990 "page": 8,991 "confidence": "medium",992 "notes": "Median household income of census tract in dollars; coefficient printed as 0.0000 (rounded) in most columns; beta printed as 0.0000 — magnitude not recoverable, use t only"993 },994 {995 "model_id": "T4-c1",996 "var_name_printed": "LN_CITYDIST",997 "taxonomy_id": "cbd_distance",998 "x_transform": "log",999 "x_unit": "km",1000 "beta": -0.1581,1001 "se": null,1002 "t": -6.45,1003 "p": null,1004 "p_stars": "*",1005 "ci_lo": null,1006 "ci_hi": null,1007 "page": 8,1008 "confidence": "high",1009 "notes": "Natural log of Euclidean distance to nearest of Washington DC or Baltimore; printed in units of 100 km (log, so scale does not affect the elasticity)"1010 },1011 {1012 "model_id": "T4-c1",1013 "var_name_printed": "LN_TOWNDIST",1014 "taxonomy_id": "other",1015 "x_transform": "log",1016 "x_unit": "km",1017 "beta": -0.0044,1018 "se": null,1019 "t": -0.76,1020 "p": null,1021 "p_stars": "",1022 "ci_lo": null,1023 "ci_hi": null,1024 "page": 8,1025 "confidence": "high",1026 "notes": "Natural log of distance to nearest town (units of 100 km)"1027 },1028 {1029 "model_id": "T4-c2",1030 "var_name_printed": "P_LGPERMOPEN",1031 "taxonomy_id": "green_space",1032 "x_transform": "level",1033 "x_unit": "share",1034 "beta": -0.1171,1035 "se": null,1036 "t": -1.57,1037 "p": null,1038 "p_stars": "",1039 "ci_lo": null,1040 "ci_hi": null,1041 "page": 8,1042 "confidence": "high",1043 "notes": "Share of permanently preserved open space within 1,600 m buffer; predicted (IV) value"1044 },1045 {1046 "model_id": "T4-c2",1047 "var_name_printed": "SMPERMOPEN",1048 "taxonomy_id": "green_space",1049 "x_transform": "level",1050 "x_unit": "share",1051 "beta": 0.0317,1052 "se": null,1053 "t": 1.33,1054 "p": null,1055 "p_stars": "",1056 "ci_lo": null,1057 "ci_hi": null,1058 "page": 8,1059 "confidence": "high",1060 "notes": "Share of permanently preserved open space within 100 m buffer"1061 },1062 {1063 "model_id": "T4-c2",1064 "var_name_printed": "P_LGAGFOREST",1065 "taxonomy_id": "green_space",1066 "x_transform": "level",1067 "x_unit": "share",1068 "beta": -0.2074,1069 "se": null,1070 "t": -3.26,1071 "p": null,1072 "p_stars": "*",1073 "ci_lo": null,1074 "ci_hi": null,1075 "page": 8,1076 "confidence": "high",1077 "notes": "Share of non-preserved agricultural and forest land within 1,600 m buffer; predicted (IV) value"1078 },1079 {1080 "model_id": "T4-c2",1081 "var_name_printed": "SMAGFOREST",1082 "taxonomy_id": "green_space",1083 "x_transform": "level",1084 "x_unit": "share",1085 "beta": 0.0027,1086 "se": null,1087 "t": 0.2,1088 "p": null,1089 "p_stars": "",1090 "ci_lo": null,1091 "ci_hi": null,1092 "page": 8,1093 "confidence": "high",1094 "notes": "Share of non-preserved agricultural and forest land within 100 m buffer"1095 },1096 {1097 "model_id": "T4-c2",1098 "var_name_printed": "LN_ACRE",1099 "taxonomy_id": "lot_size",1100 "x_transform": "log",1101 "x_unit": "acres",1102 "beta": 0.1338,1103 "se": null,1104 "t": 31.06,1105 "p": null,1106 "p_stars": "*",1107 "ci_lo": null,1108 "ci_hi": null,1109 "page": 8,1110 "confidence": "high",1111 "notes": "Natural log of parcel size in acres"1112 },1113 {1114 "model_id": "T4-c2",1115 "var_name_printed": "LN_AGE",1116 "taxonomy_id": "age",1117 "x_transform": "log",1118 "x_unit": "years",1119 "beta": -0.061,1120 "se": null,1121 "t": -20.15,1122 "p": null,1123 "p_stars": "*",1124 "ci_lo": null,1125 "ci_hi": null,1126 "page": 8,1127 "confidence": "high",1128 "notes": "Natural log of age of structure in years"1129 },1130 {1131 "model_id": "T4-c2",1132 "var_name_printed": "LN_SQFT",1133 "taxonomy_id": "living_area",1134 "x_transform": "log",1135 "x_unit": "sqft",1136 "beta": 0.2629,1137 "se": null,1138 "t": 24.0,1139 "p": null,1140 "p_stars": "*",1141 "ci_lo": null,1142 "ci_hi": null,1143 "page": 8,1144 "confidence": "high",1145 "notes": "Natural log of structure size in square feet"1146 },1147 {1148 "model_id": "T4-c2",1149 "var_name_printed": "AVERAGE",1150 "taxonomy_id": "condition",1151 "x_transform": "dummy",1152 "x_unit": "binary",1153 "beta": 0.1551,1154 "se": null,1155 "t": 16.76,1156 "p": null,1157 "p_stars": "*",1158 "ci_lo": null,1159 "ci_hi": null,1160 "page": 8,1161 "confidence": "high",1162 "notes": "Assessor quality grade average (omitted category: fair)"1163 },1164 {1165 "model_id": "T4-c2",1166 "var_name_printed": "GOOD_VGOOD",1167 "taxonomy_id": "condition",1168 "x_transform": "dummy",1169 "x_unit": "binary",1170 "beta": 0.3973,1171 "se": null,1172 "t": 16.69,1173 "p": null,1174 "p_stars": "*",1175 "ci_lo": null,1176 "ci_hi": null,1177 "page": 8,1178 "confidence": "high",1179 "notes": "Assessor quality grade good or very good (omitted: fair)"1180 },1181 {1182 "model_id": "T4-c2",1183 "var_name_printed": "NUSTORY",1184 "taxonomy_id": "storeys",1185 "x_transform": "level",1186 "x_unit": "count",1187 "beta": -0.0155,1188 "se": null,1189 "t": -1.83,1190 "p": null,1191 "p_stars": "",1192 "ci_lo": null,1193 "ci_hi": null,1194 "page": 8,1195 "confidence": "high",1196 "notes": "Number of stories"1197 },1198 {1199 "model_id": "T4-c2",1200 "var_name_printed": "BASEMENT",1201 "taxonomy_id": "basement",1202 "x_transform": "binary",1203 "x_unit": "binary",1204 "beta": 0.133,1205 "se": null,1206 "t": 8.87,1207 "p": null,1208 "p_stars": "*",1209 "ci_lo": null,1210 "ci_hi": null,1211 "page": 8,1212 "confidence": "high",1213 "notes": ""1214 },1215 {1216 "model_id": "T4-c2",1217 "var_name_printed": "FRAME",1218 "taxonomy_id": "roof_materials",1219 "x_transform": "binary",1220 "x_unit": "binary",1221 "beta": -0.0488,1222 "se": null,1223 "t": -3.79,1224 "p": null,1225 "p_stars": "*",1226 "ci_lo": null,1227 "ci_hi": null,1228 "page": 8,1229 "confidence": "high",1230 "notes": "Framed structure (omitted: all other construction types)"1231 },1232 {1233 "model_id": "T4-c2",1234 "var_name_printed": "ALUM",1235 "taxonomy_id": "roof_materials",1236 "x_transform": "binary",1237 "x_unit": "binary",1238 "beta": -0.0007,1239 "se": null,1240 "t": -0.08,1241 "p": null,1242 "p_stars": "",1243 "ci_lo": null,1244 "ci_hi": null,1245 "page": 8,1246 "confidence": "high",1247 "notes": "Aluminum-sided structure (omitted: all other construction types)"1248 },1249 {1250 "model_id": "T4-c2",1251 "var_name_printed": "LN_POPDEN",1252 "taxonomy_id": "density",1253 "x_transform": "log",1254 "x_unit": "households per sq mile",1255 "beta": 0.0274,1256 "se": null,1257 "t": 4.02,1258 "p": null,1259 "p_stars": "*",1260 "ci_lo": null,1261 "ci_hi": null,1262 "page": 8,1263 "confidence": "high",1264 "notes": "Natural log of census tract/block-group population density (households per square mile)"1265 },1266 {1267 "model_id": "T4-c2",1268 "var_name_printed": "%EDUCB",1269 "taxonomy_id": "education_level",1270 "x_transform": "level",1271 "x_unit": "share",1272 "beta": 0.0083,1273 "se": null,1274 "t": 0.06,1275 "p": null,1276 "p_stars": "",1277 "ci_lo": null,1278 "ci_hi": null,1279 "page": 8,1280 "confidence": "high",1281 "notes": "Share of population with bachelor's degree or higher (1990 Census block group)"1282 },1283 {1284 "model_id": "T4-c2",1285 "var_name_printed": "MEDHSINC",1286 "taxonomy_id": "income",1287 "x_transform": "level",1288 "x_unit": "USD",1289 "beta": 0.0,1290 "se": null,1291 "t": 23.02,1292 "p": null,1293 "p_stars": "*",1294 "ci_lo": null,1295 "ci_hi": null,1296 "page": 8,1297 "confidence": "medium",1298 "notes": "Median household income of census tract in dollars; coefficient printed as 0.0000 (rounded) in most columns; beta printed as 0.0000 — magnitude not recoverable, use t only"1299 },1300 {1301 "model_id": "T4-c2",1302 "var_name_printed": "LN_CITYDIST",1303 "taxonomy_id": "cbd_distance",1304 "x_transform": "log",1305 "x_unit": "km",1306 "beta": -0.1687,1307 "se": null,1308 "t": -5.8,1309 "p": null,1310 "p_stars": "*",1311 "ci_lo": null,1312 "ci_hi": null,1313 "page": 8,1314 "confidence": "high",1315 "notes": "Natural log of Euclidean distance to nearest of Washington DC or Baltimore; printed in units of 100 km (log, so scale does not affect the elasticity)"1316 },1317 {1318 "model_id": "T4-c2",1319 "var_name_printed": "LN_TOWNDIST",1320 "taxonomy_id": "other",1321 "x_transform": "log",1322 "x_unit": "km",1323 "beta": -0.0048,1324 "se": null,1325 "t": -0.75,1326 "p": null,1327 "p_stars": "",1328 "ci_lo": null,1329 "ci_hi": null,1330 "page": 8,1331 "confidence": "high",1332 "notes": "Natural log of distance to nearest town (units of 100 km)"1333 },1334 {1335 "model_id": "T5-c1",1336 "var_name_printed": "P_LGPERMOPEN",1337 "taxonomy_id": "green_space",1338 "x_transform": "level",1339 "x_unit": "share",1340 "beta": 0.495,1341 "se": null,1342 "t": 6.4,1343 "p": null,1344 "p_stars": "*",1345 "ci_lo": null,1346 "ci_hi": null,1347 "page": 9,1348 "confidence": "high",1349 "notes": "Share of permanently preserved open space within 1,600 m buffer; predicted (IV) value"1350 },1351 {1352 "model_id": "T5-c1",1353 "var_name_printed": "SMPERMOPEN",1354 "taxonomy_id": "green_space",1355 "x_transform": "level",1356 "x_unit": "share",1357 "beta": 0.0367,1358 "se": null,1359 "t": 1.69,1360 "p": null,1361 "p_stars": "",1362 "ci_lo": null,1363 "ci_hi": null,1364 "page": 9,1365 "confidence": "high",1366 "notes": "Share of permanently preserved open space within 100 m buffer"1367 },1368 {1369 "model_id": "T5-c1",1370 "var_name_printed": "P_LGAGFOREST",1371 "taxonomy_id": "green_space",1372 "x_transform": "level",1373 "x_unit": "share",1374 "beta": -0.1612,1375 "se": null,1376 "t": -2.89,1377 "p": null,1378 "p_stars": "*",1379 "ci_lo": null,1380 "ci_hi": null,1381 "page": 9,1382 "confidence": "high",1383 "notes": "Share of non-preserved agricultural and forest land within 1,600 m buffer; predicted (IV) value"1384 },1385 {1386 "model_id": "T5-c1",1387 "var_name_printed": "P_SMAGFOREST",1388 "taxonomy_id": "green_space",1389 "x_transform": "level",1390 "x_unit": "share",1391 "beta": 0.2066,1392 "se": null,1393 "t": 3.18,1394 "p": null,1395 "p_stars": "*",1396 "ci_lo": null,1397 "ci_hi": null,1398 "page": 9,1399 "confidence": "high",1400 "notes": "Share of non-preserved agricultural and forest land within 100 m buffer; predicted (IV) value in Howard County"1401 },1402 {1403 "model_id": "T5-c1",1404 "var_name_printed": "LN_ACRE",1405 "taxonomy_id": "lot_size",1406 "x_transform": "log",1407 "x_unit": "acres",1408 "beta": 0.1045,1409 "se": null,1410 "t": 26.82,1411 "p": null,1412 "p_stars": "*",1413 "ci_lo": null,1414 "ci_hi": null,1415 "page": 9,1416 "confidence": "high",1417 "notes": "Natural log of parcel size in acres"1418 },1419 {1420 "model_id": "T5-c1",1421 "var_name_printed": "LN_AGE",1422 "taxonomy_id": "age",1423 "x_transform": "log",1424 "x_unit": "years",1425 "beta": -0.0559,1426 "se": null,1427 "t": -20.79,1428 "p": null,1429 "p_stars": "*",1430 "ci_lo": null,1431 "ci_hi": null,1432 "page": 9,1433 "confidence": "high",1434 "notes": "Natural log of age of structure in years"1435 },1436 {1437 "model_id": "T5-c1",1438 "var_name_printed": "LN_SQFT",1439 "taxonomy_id": "living_area",1440 "x_transform": "log",1441 "x_unit": "sqft",1442 "beta": 0.2518,1443 "se": null,1444 "t": 34.22,1445 "p": null,1446 "p_stars": "",1447 "ci_lo": null,1448 "ci_hi": null,1449 "page": 9,1450 "confidence": "high",1451 "notes": "Natural log of structure size in square feet; no star printed although t = 34.22 (likely typographic omission); no star printed despite |t| > 1.96 (as printed)"1452 },1453 {1454 "model_id": "T5-c1",1455 "var_name_printed": "AVERAGE",1456 "taxonomy_id": "condition",1457 "x_transform": "dummy",1458 "x_unit": "binary",1459 "beta": 0.2258,1460 "se": null,1461 "t": 14.67,1462 "p": null,1463 "p_stars": "*",1464 "ci_lo": null,1465 "ci_hi": null,1466 "page": 9,1467 "confidence": "high",1468 "notes": "Assessor quality grade average (omitted category: fair)"1469 },1470 {1471 "model_id": "T5-c1",1472 "var_name_printed": "GOOD_VGOOD",1473 "taxonomy_id": "condition",1474 "x_transform": "dummy",1475 "x_unit": "binary",1476 "beta": 0.4152,1477 "se": null,1478 "t": 24.96,1479 "p": null,1480 "p_stars": "*",1481 "ci_lo": null,1482 "ci_hi": null,1483 "page": 9,1484 "confidence": "high",1485 "notes": "Assessor quality grade good or very good (omitted: fair)"1486 },1487 {1488 "model_id": "T5-c1",1489 "var_name_printed": "NUSTORY",1490 "taxonomy_id": "storeys",1491 "x_transform": "level",1492 "x_unit": "count",1493 "beta": 0.0675,1494 "se": null,1495 "t": 8.04,1496 "p": null,1497 "p_stars": "*",1498 "ci_lo": null,1499 "ci_hi": null,1500 "page": 9,1501 "confidence": "high",1502 "notes": "Number of stories"1503 },1504 {1505 "model_id": "T5-c1",1506 "var_name_printed": "BASEMENT",1507 "taxonomy_id": "basement",1508 "x_transform": "binary",1509 "x_unit": "binary",1510 "beta": 0.0847,1511 "se": null,1512 "t": 8.13,1513 "p": null,1514 "p_stars": "*",1515 "ci_lo": null,1516 "ci_hi": null,1517 "page": 9,1518 "confidence": "high",1519 "notes": ""1520 },1521 {1522 "model_id": "T5-c1",1523 "var_name_printed": "FRAME",1524 "taxonomy_id": "roof_materials",1525 "x_transform": "binary",1526 "x_unit": "binary",1527 "beta": -0.0736,1528 "se": null,1529 "t": -7.85,1530 "p": null,1531 "p_stars": "*",1532 "ci_lo": null,1533 "ci_hi": null,1534 "page": 9,1535 "confidence": "high",1536 "notes": "Framed structure (omitted: all other construction types)"1537 },1538 {1539 "model_id": "T5-c1",1540 "var_name_printed": "ALUM",1541 "taxonomy_id": "roof_materials",1542 "x_transform": "binary",1543 "x_unit": "binary",1544 "beta": -0.0919,1545 "se": null,1546 "t": -8.58,1547 "p": null,1548 "p_stars": "*",1549 "ci_lo": null,1550 "ci_hi": null,1551 "page": 9,1552 "confidence": "high",1553 "notes": "Aluminum-sided structure (omitted: all other construction types)"1554 },1555 {1556 "model_id": "T5-c1",1557 "var_name_printed": "LN_POPDEN",1558 "taxonomy_id": "density",1559 "x_transform": "log",1560 "x_unit": "households per sq mile",1561 "beta": 0.0089,1562 "se": null,1563 "t": 2.62,1564 "p": null,1565 "p_stars": "*",1566 "ci_lo": null,1567 "ci_hi": null,1568 "page": 9,1569 "confidence": "high",1570 "notes": "Natural log of census tract/block-group population density (households per square mile)"1571 },1572 {1573 "model_id": "T5-c1",1574 "var_name_printed": "%EDUCB",1575 "taxonomy_id": "education_level",1576 "x_transform": "level",1577 "x_unit": "share",1578 "beta": 0.2816,1579 "se": null,1580 "t": 4.86,1581 "p": null,1582 "p_stars": "*",1583 "ci_lo": null,1584 "ci_hi": null,1585 "page": 9,1586 "confidence": "high",1587 "notes": "Share of population with bachelor's degree or higher (1990 Census block group)"1588 },1589 {1590 "model_id": "T5-c1",1591 "var_name_printed": "MEDHSINC",1592 "taxonomy_id": "income",1593 "x_transform": "level",1594 "x_unit": "USD",1595 "beta": 0.0,1596 "se": null,1597 "t": 13.31,1598 "p": null,1599 "p_stars": "*",1600 "ci_lo": null,1601 "ci_hi": null,1602 "page": 9,1603 "confidence": "medium",1604 "notes": "Median household income of census tract in dollars; coefficient printed as 0.0000 (rounded) in most columns; beta printed as 0.0000 — magnitude not recoverable, use t only"1605 },1606 {1607 "model_id": "T5-c1",1608 "var_name_printed": "LN_CITYDIST",1609 "taxonomy_id": "cbd_distance",1610 "x_transform": "log",1611 "x_unit": "km",1612 "beta": -0.0033,1613 "se": null,1614 "t": -0.24,1615 "p": null,1616 "p_stars": "",1617 "ci_lo": null,1618 "ci_hi": null,1619 "page": 9,1620 "confidence": "high",1621 "notes": "Natural log of Euclidean distance to nearest of Washington DC or Baltimore; printed in units of 100 km (log, so scale does not affect the elasticity)"1622 },1623 {1624 "model_id": "T5-c1",1625 "var_name_printed": "LN_TOWNDIST",1626 "taxonomy_id": "other",1627 "x_transform": "log",1628 "x_unit": "km",1629 "beta": -0.0059,1630 "se": null,1631 "t": -1.32,1632 "p": null,1633 "p_stars": "",1634 "ci_lo": null,1635 "ci_hi": null,1636 "page": 9,1637 "confidence": "high",1638 "notes": "Natural log of distance to nearest town (units of 100 km)"1639 },1640 {1641 "model_id": "T5-c2",1642 "var_name_printed": "P_LGPERMOPEN",1643 "taxonomy_id": "green_space",1644 "x_transform": "level",1645 "x_unit": "share",1646 "beta": 0.5869,1647 "se": null,1648 "t": 3.91,1649 "p": null,1650 "p_stars": "*",1651 "ci_lo": null,1652 "ci_hi": null,1653 "page": 9,1654 "confidence": "high",1655 "notes": "Share of permanently preserved open space within 1,600 m buffer; predicted (IV) value"1656 },1657 {1658 "model_id": "T5-c2",1659 "var_name_printed": "SMPERMOPEN",1660 "taxonomy_id": "green_space",1661 "x_transform": "level",1662 "x_unit": "share",1663 "beta": 0.0489,1664 "se": null,1665 "t": 2.02,1666 "p": null,1667 "p_stars": "*",1668 "ci_lo": null,1669 "ci_hi": null,1670 "page": 9,1671 "confidence": "high",1672 "notes": "Share of permanently preserved open space within 100 m buffer"1673 },1674 {1675 "model_id": "T5-c2",1676 "var_name_printed": "P_LGAGFOREST",1677 "taxonomy_id": "green_space",1678 "x_transform": "level",1679 "x_unit": "share",1680 "beta": -0.2035,1681 "se": null,1682 "t": -2.31,1683 "p": null,1684 "p_stars": "",1685 "ci_lo": null,1686 "ci_hi": null,1687 "page": 9,1688 "confidence": "high",1689 "notes": "Share of non-preserved agricultural and forest land within 1,600 m buffer; predicted (IV) value; no star printed despite |t| > 1.96 (as printed)"1690 },1691 {1692 "model_id": "T5-c2",1693 "var_name_printed": "P_SMAGFOREST",1694 "taxonomy_id": "green_space",1695 "x_transform": "level",1696 "x_unit": "share",1697 "beta": 0.1482,1698 "se": null,1699 "t": 1.75,1700 "p": null,1701 "p_stars": "",1702 "ci_lo": null,1703 "ci_hi": null,1704 "page": 9,1705 "confidence": "high",1706 "notes": "Share of non-preserved agricultural and forest land within 100 m buffer; predicted (IV) value in Howard County"1707 },1708 {1709 "model_id": "T5-c2",1710 "var_name_printed": "LN_ACRE",1711 "taxonomy_id": "lot_size",1712 "x_transform": "log",1713 "x_unit": "acres",1714 "beta": 0.1114,1715 "se": null,1716 "t": 23.79,1717 "p": null,1718 "p_stars": "*",1719 "ci_lo": null,1720 "ci_hi": null,1721 "page": 9,1722 "confidence": "high",1723 "notes": "Natural log of parcel size in acres"1724 },1725 {1726 "model_id": "T5-c2",1727 "var_name_printed": "LN_AGE",1728 "taxonomy_id": "age",1729 "x_transform": "log",1730 "x_unit": "years",1731 "beta": -0.0566,1732 "se": null,1733 "t": -18.56,1734 "p": null,1735 "p_stars": "*",1736 "ci_lo": null,1737 "ci_hi": null,1738 "page": 9,1739 "confidence": "high",1740 "notes": "Natural log of age of structure in years"1741 },1742 {1743 "model_id": "T5-c2",1744 "var_name_printed": "LN_SQFT",1745 "taxonomy_id": "living_area",1746 "x_transform": "log",1747 "x_unit": "sqft",1748 "beta": 0.2031,1749 "se": null,1750 "t": 29.46,1751 "p": null,1752 "p_stars": "*",1753 "ci_lo": null,1754 "ci_hi": null,1755 "page": 9,1756 "confidence": "high",1757 "notes": "Natural log of structure size in square feet"1758 },1759 {1760 "model_id": "T5-c2",1761 "var_name_printed": "AVERAGE",1762 "taxonomy_id": "condition",1763 "x_transform": "dummy",1764 "x_unit": "binary",1765 "beta": 0.23,1766 "se": null,1767 "t": 14.07,1768 "p": null,1769 "p_stars": "*",1770 "ci_lo": null,1771 "ci_hi": null,1772 "page": 9,1773 "confidence": "high",1774 "notes": "Assessor quality grade average (omitted category: fair)"1775 },1776 {1777 "model_id": "T5-c2",1778 "var_name_printed": "GOOD_VGOOD",1779 "taxonomy_id": "condition",1780 "x_transform": "dummy",1781 "x_unit": "binary",1782 "beta": 0.412,1783 "se": null,1784 "t": 23.06,1785 "p": null,1786 "p_stars": "*",1787 "ci_lo": null,1788 "ci_hi": null,1789 "page": 9,1790 "confidence": "high",1791 "notes": "Assessor quality grade good or very good (omitted: fair)"1792 },1793 {1794 "model_id": "T5-c2",1795 "var_name_printed": "NUSTORY",1796 "taxonomy_id": "storeys",1797 "x_transform": "level",1798 "x_unit": "count",1799 "beta": 0.0734,1800 "se": null,1801 "t": 8.97,1802 "p": null,1803 "p_stars": "*",1804 "ci_lo": null,1805 "ci_hi": null,1806 "page": 9,1807 "confidence": "high",1808 "notes": "Number of stories"1809 },1810 {1811 "model_id": "T5-c2",1812 "var_name_printed": "BASEMENT",1813 "taxonomy_id": "basement",1814 "x_transform": "binary",1815 "x_unit": "binary",1816 "beta": 0.0731,1817 "se": null,1818 "t": 7.15,1819 "p": null,1820 "p_stars": "*",1821 "ci_lo": null,1822 "ci_hi": null,1823 "page": 9,1824 "confidence": "high",1825 "notes": ""1826 },1827 {1828 "model_id": "T5-c2",1829 "var_name_printed": "FRAME",1830 "taxonomy_id": "roof_materials",1831 "x_transform": "binary",1832 "x_unit": "binary",1833 "beta": -0.0538,1834 "se": null,1835 "t": -6.0,1836 "p": null,1837 "p_stars": "*",1838 "ci_lo": null,1839 "ci_hi": null,1840 "page": 9,1841 "confidence": "high",1842 "notes": "Framed structure (omitted: all other construction types)"1843 },1844 {1845 "model_id": "T5-c2",1846 "var_name_printed": "ALUM",1847 "taxonomy_id": "roof_materials",1848 "x_transform": "binary",1849 "x_unit": "binary",1850 "beta": -0.0601,1851 "se": null,1852 "t": -5.65,1853 "p": null,1854 "p_stars": "*",1855 "ci_lo": null,1856 "ci_hi": null,1857 "page": 9,1858 "confidence": "high",1859 "notes": "Aluminum-sided structure (omitted: all other construction types)"1860 },1861 {1862 "model_id": "T5-c2",1863 "var_name_printed": "LN_POPDEN",1864 "taxonomy_id": "density",1865 "x_transform": "log",1866 "x_unit": "households per sq mile",1867 "beta": 0.0041,1868 "se": null,1869 "t": 0.74,1870 "p": null,1871 "p_stars": "",1872 "ci_lo": null,1873 "ci_hi": null,1874 "page": 9,1875 "confidence": "high",1876 "notes": "Natural log of census tract/block-group population density (households per square mile)"1877 },1878 {1879 "model_id": "T5-c2",1880 "var_name_printed": "%EDUCB",1881 "taxonomy_id": "education_level",1882 "x_transform": "level",1883 "x_unit": "share",1884 "beta": 0.1601,1885 "se": null,1886 "t": 1.62,1887 "p": null,1888 "p_stars": "",1889 "ci_lo": null,1890 "ci_hi": null,1891 "page": 9,1892 "confidence": "high",1893 "notes": "Share of population with bachelor's degree or higher (1990 Census block group)"1894 },1895 {1896 "model_id": "T5-c2",1897 "var_name_printed": "MEDHSINC",1898 "taxonomy_id": "income",1899 "x_transform": "level",1900 "x_unit": "USD",1901 "beta": 0.0021,1902 "se": null,1903 "t": 5.7,1904 "p": null,1905 "p_stars": "*",1906 "ci_lo": null,1907 "ci_hi": null,1908 "page": 9,1909 "confidence": "medium",1910 "notes": "Median household income of census tract in dollars; printed 0.0021 in this column (scale inconsistent with other columns, possibly in thousands of dollars)"1911 },1912 {1913 "model_id": "T5-c2",1914 "var_name_printed": "LN_CITYDIST",1915 "taxonomy_id": "cbd_distance",1916 "x_transform": "log",1917 "x_unit": "km",1918 "beta": 0.0154,1919 "se": null,1920 "t": 1.68,1921 "p": null,1922 "p_stars": "",1923 "ci_lo": null,1924 "ci_hi": null,1925 "page": 9,1926 "confidence": "high",1927 "notes": "Natural log of Euclidean distance to nearest of Washington DC or Baltimore; printed in units of 100 km (log, so scale does not affect the elasticity)"1928 },1929 {1930 "model_id": "T5-c2",1931 "var_name_printed": "LN_TOWNDIST",1932 "taxonomy_id": "other",1933 "x_transform": "log",1934 "x_unit": "km",1935 "beta": 0.0004,1936 "se": null,1937 "t": 0.05,1938 "p": null,1939 "p_stars": "",1940 "ci_lo": null,1941 "ci_hi": null,1942 "page": 9,1943 "confidence": "high",1944 "notes": "Natural log of distance to nearest town (units of 100 km)"1945 }1946 ]1947}