Network effects, congestion externalities, and air traffic delays: or why not all delays are evil

Article Abstract:

An analysis of air traffic congestion at hub airports is presented. The network benefits due to hubbing and consequent additional travel time is compared with that of non-hub flights that operate with minimal additional travel time.

Air Transportation, Scheduled, And Air Courier Services, Airports, flying fields, & services, Airports, Airport Operations, Pennsylvania, Airlines, Time management, Traffic congestion

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Make versus buy in trucking: asset ownership, job design, and information

Article Abstract:

A model of asset ownership in trucking to examine the impact of usage of on-board computers between 1987 and 1997 on shippers who use their own trucks or contracted with private carriers is presented.

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing, Search and navigation equipment, Ground Navigation Equipment, Usage, Technology application, Truck drivers, Cargo handling, Navigation computer (Aeronautical instrument)

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Valuing biodiversity from an economic perspective: A unified economic, ecological, and genetic approach

Article Abstract:

The advantages of biodiversity management policies for under ecological and genetic constraints and the economic aspects of biodiversity value are analyzed.

Economic aspects, Biological diversity, Biodiversity, Ecology, Ecological genetics

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