| 1 | A | B | C | D | E | F | G |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | sample statistics, 1985 to 2001 |  |  |  |  |  |  |
| 3 |  | resell |  |  |  | discard age |  |
| 4 |  | ratio |  | age |  |  |  |
| 5 |  | mean | standard error | mean | standard error | mean | standard error |
| 6 | all buildings | 0.380 | 0.308 | 16.4 | 11.7 | 21.5 | 12.1 |
| 7 | plants for manufacturing | 0.308 | 0.291 | 17.5 | 12.0 | 24.3 | 11.1 |
| 8 | warehouses, refrigerated storage, freight terminals | 0.397 | 0.292 | 17.9 | 9.8 | 25.9 | 14.1 |
| 9 | maintenance garages, workshops, equipment storage facilities | 0.287 | 0.279 | 16.1 | 9.4 | 23.7 | 11.5 |
| 10 | office buildings | 0.411 | 0.304 | 17.2 | 13.4 | 21.3 | 13.2 |
| 11 | shopping centres, plazas, malls, stores | 0.500 | 0.308 | 15.0 | 10.9 | 9.7 | 6.0 |
| 12 | other industrial and commercial | 0.342 | 0.284 | 18.2 | 10.9 | 22.3 | 9.2 |
| 13 | telephone and cablevision lines, underground and marine cables | 0.449 | 0.390 | 9.2 | 7.3 | 17.7 | 8.1 |
| 14 | communication towers, antennae, earth stations | 0.339 | 0.279 | 13.5 | 9.8 | 22.6 | 9.4 |
| 15 | all machinery and equipment | 0.271 | 0.259 | 8.5 | 5.2 | 10.2 | 5.3 |
| 16 | office furniture, furnishing | 0.301 | 0.252 | 8.5 | 4.1 | 10.7 | 4.3 |
| 17 | computers, associated hardware and word processors | 0.312 | 0.278 | 4.8 | 2.0 | 5.8 | 2.1 |
| 18 | non-office furniture, furnishings and fixtures | 0.264 | 0.267 | 8.3 | 4.2 | 8.8 | 3.9 |
| 19 | scientific, professional and medical devices | 0.274 | 0.281 | 9.1 | 4.9 | 11.5 | 5.2 |
| 20 | heating, electrical, plumbing, air conditioning and refrigeration equipment | 0.251 | 0.267 | 9.9 | 5.4 | 14.5 | 6.7 |
| 21 | pollution abatement and control equipment | 0.232 | 0.293 | 14.4 | 7.5 | 13.0 | 6.2 |
| 22 | motors, generators, transformers, turbines, compressors and pumps of all types | 0.264 | 0.272 | 11.6 | 6.5 | 15.5 | 7.1 |
| 23 | heavy construction equipment | 0.267 | 0.242 | 9.9 | 5.0 | 11.0 | 5.5 |
| 24 | tractors and other field equipment | 0.253 | 0.216 | 9.1 | 4.3 | 10.8 | 4.8 |
| 25 | capitalized tooling and other tools | 0.248 | 0.260 | 9.6 | 5.3 | 9.2 | 4.0 |
| 26 | drilling and blasting equipment | 0.309 | 0.249 | 8.2 | 4.8 | 11.7 | 5.1 |
| 27 | automobiles and major replacement parts | 0.343 | 0.240 | 4.5 | 2.1 | 5.6 | 2.4 |
| 28 | buses (all types) and major replacement parts | 0.159 | 0.201 | 12.9 | 5.1 | 11.1 | 4.9 |
| 29 | trucks, vans, truck tractors, truck trailers and major replacement parts | 0.256 | 0.247 | 7.4 | 3.5 | 8.5 | 3.5 |
| 30 | other transportation equipment | 0.233 | 0.252 | 10.0 | 5.7 | 10.2 | 5.0 |
| 31 | computer-assisted processing machinery and equipment | 0.257 | 0.292 | 9.9 | 6.0 | 12.1 | 5.7 |
| 32 | non-computer-assisted processing machinery and equipment | 0.219 | 0.249 | 11.7 | 6.1 | 13.2 | 5.5 |
| 33 | communication and related equipment | 0.285 | 0.292 | 7.5 | 4.5 | 9.5 | 4.3 |
| 34 | safety and security equipment and other machinery and equipment | 0.324 | 0.288 | 9.5 | 5.5 | 11.7 | 5.7 |

Question: from 1985 to 2001, what was the mean reselling price ratio for buildings?
Answer: 0.38

Question: from 1985 to 2001, what was the mean reselling price ratio for machinery and equipment?
Answer: 0.271