RT Monograph SR 00 A1 Marchetti, C. T1 Anthropological Invariants in Travel Behavior YR 1994 FD 1994 VO 47 SP 16 AB Personal travel appears to be much more under the control of basic instinct than of economic drive. This may be the reason for the systematic mismatch between the results of cost benefit analysis and the actual behavior of travelers. In this paper a list of the basic instincts that drive and contain travelers' behavior has been put together, showing how they mesh with technological progress and economic constraints. PB RR-95-004. Reprinted from Technological Forecasting and Social Change, 47(1) [September 1994]. PP IIASA, Laxenburg, Austria AV Published LK https://pure.iiasa.ac.at/id/eprint/4071/