Abstract:
Analysis of road fereight transport is hindered by the lack of diecdirect observartions of the handling factor. The handling factor is the frequency of lifts of the tonnes in the supply chain from origin to destination. It is also the number of times that the same tonnes are reported to the central statistical office. Changes in the tonnes lifted figure may be caused by changes in the actual tonnes in transport or by changes in the handling factor, in unknown propotions. An econometric technique using entropy can be used to estimate what has not been observed, and thus to recover the hidden variables, of both the handling factor and the tonnes in transport.
JEL-codes:C1C5R (search for similar items in EconPapers) Date: 1997-03-03 Note: 24 pages Word for Windows, tables and graphs View list of references