| Title | Revisions to the Wharton EFA Automobile Demand Model : The Wharton EFA Motor Vehicle Demand Model (Mark I) |
|---|---|
| Record ID | 50235 |
| Personal Name Creator |
Loxley, Colin J.; Luce, Priscilla; Osiecki, Tim; Rodenrys, Kate; Thanawala, S. |
| Source | 177p. in varius pagings |
| Corporate Creator | Wharton Econometrics Forecasting Associates |
| Corporate Contributor |
John A. Volpe National Transportation Systems Center (U.S.); United States. Department of Transportation. National Highway Traffic Safety Administration |
| Publisher | United States. Department of Transportation. National Highway Traffic Safety Administration |
| Publication Date | 19801201 |
| Language | English |
| Abstract | The report documents revisions made to the Wharton EFA Automobile Demand Model to produce the Wharton EFA Motor Vehicle Demand Model (Mark I). Equations are reestimated for the total desired stock of autos and for desired shares by size class, including the foreign size classes. The automobile data was adjusted to exclude passenger vans, so equations for total new registrations, scrappage, and new registrations by size class are estimated. New data also allowed reestimated WEFA and EPA miles per gallon equations in cross-section and time series. Vehicle miles traveled are estimated as the sum of urban and rural vehicle miles per car, which are the results of new behavioral equations. Consistent procedures are found for aggregation of vehicle miles and MPGs to produce average fuel economy and gasoline consumption. Automobile price equations and equations for related price indices are reestimated, as are equations for linkages to the WEFA Annual Model. Finally, a forecast through 1987 is presented and discussed. |
| Rosap ID | dot:11628 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/11628 |
| TRT Terms | Automobile rack cars; Automobiles; Demand; Economic forecasting; Economic models; Equations; Forecasting; Freight traffic; Fuel consumption; Inventory control; Long range planning; Management; Market research; Mathematical models; Motor vehicles; Prices; Supply; Time series analysis; Traffic forecasting; Vehicle miles of travel |
| General Subjects | Motor vehicles; Market research; Demand (Economic theory); Economic forecasting; Long range planning |
| Classification | NTL - ECONOMICS AND FINANCE - ECONOMICS AND FINANCE; NTL - ECONOMICS AND FINANCE - Economic Impacts; NTL - HIGHWAY/ROAD TRANSPORTATION - HIGHWAY/ROAD TRANSPORTATION |
| Geographical Coverage |
United States |
| Report Number | DOT-TSC-NHTSA-80-23; DOT-HS-805 567; PB81-157703 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/50000/50200/50235/DOT-TSC-NHTSA-80-23.pdf |
| Format | |
| Database | NTL Digital Repository |