scholarly journals Up, Up, and Away: The dynamics of innovation in the US air cargo transportation industry

2010 ◽  
Vol 3 (1/2) ◽  
pp. 167
Author(s):  
Janet K. Tinoco ◽  
Ryan C. Johnson
2019 ◽  
Vol 11 (19) ◽  
pp. 5197 ◽  
Author(s):  
Carman K.M. Lee ◽  
Shuzhu Zhang ◽  
Kam K.H. Ng

Air cargo transportation is an essential component in the freight transportation market, primarily due to the transportation requirements of time-sensitive products. Air cargo transportation plays an increasingly important role alongside economic development. Cargo flight network design and fleet routing selection significantly affect the performance of the air cargo transportation. In this research, we propose an integrated model simultaneously considering cargo flight network design and the fleet routing selection for the air cargo transportation. Two transportation modes, the direct transportation mode in point-to-point networks and the transshipment mode in hub-and-spoke networks, are compared. In order to solve the proposed optimization problem, a swarm-intelligence-based algorithm is adapted. Numerical experiments were conducted to examine and validate the effectiveness and efficiency of the proposed model and algorithm. The computational results suggest that the proper settings of hub and transshipment route selection in an air cargo transportation network can significantly reduce the transportation cost, which can provide practical managerial insights for the air cargo transportation industry.


1952 ◽  
Vol 17 (1) ◽  
pp. 1-10
Author(s):  
Dwight L. Gentry

2019 ◽  
Vol 76 (Suppl 1) ◽  
pp. A86.3-A87
Author(s):  
Chen-Chang Yang ◽  
Hsin-Chien Wu

BackgroundIn Taiwan, the prevalence of metabolic syndrome among people over the age of 20 years is as high as 19.7%. With the increase in age, the prevalence of metabolic syndrome is even higher, with the prevalence being more than 30 years among those aged 45–65 years. Notably, very limited follow-up studies have examined the incidence and risk factors of metabolic syndrome among workers of different job categories in Taiwan.MethodsWe conducted a retrospective follow-up study that included 6,284 Taiwanese subjects who had been working in the same job category for 5 years and who received periodic health checkups at a regional hospital from 2006 to 2017 to better understand the incidence rate and risk factors of metabolic syndrome in Taiwan. All participants’ demographic data and health examination data were then analyzed. Metabolic syndrome was diagnosed according to the criteria proposd by the US National Cholesterol Education Program (NCEP) Third Report of the Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults (ATP III).ResultsAfter an average follow-up of 6.0 years, the incidence rate of metabolic syndrome among workers who had been working in the same job category for five years was 32.42 per 1000 person-years. Moreover, the largest number of cases with metabolic syndrome appeared in the transportation industry.ConclusionThe results of this study should help the employers of various industries to better plan health education and monitoring programs of their employees to ameliorate the incidence of metabolic syndrome.


Author(s):  
Serhii Smerichevskyi ◽  
Svitlana Gura

The article shows the strategic role of cargo air transport in the economies of the world, related to the maintenance of foreign trade, urgent delivery of goods, their transportation over long distances, and so on. The determining factors of the development of cargo air transport in the global economy are systematized: organizational innovations, information technologies, new forms of cooperation of air carriers and logistics solutions. The contribution of air transport to the formation of cargo turnover in Ukraine is determined. The opposite dynamics of volumes of cargo transportation by air and other types of transport is revealed. The contradiction between the low share of air cargo traffic and their strong absolute and structural growth is quantitatively shown. Air freight is defined by a market of oligopolistic competition due to a limited number of economic entities, the dominance of one large and several medium-sized players, the presence of barriers to entry, which are financial-investment and technical-technological nature. The attractiveness of the air freight market for investments is shown given the predominant positivity of financial results and the growing share of profitable enterprises. The institutional forms of organization of cargo air carriers (classic, combined, hybrid) are generalized, their advantages and disadvantages are defined. The principles of functioning of transport chains and realization of multimodal transportations on the basis of cargo air transport are substantiated. The main information systems of booking and management of air cargo transportation, distribution, pricing, calculations, tracking of luggage by buyers and sellers are characterized. The requirements of the International Air Transport Association for the use of innovative e-freight technologies in aviation are summarized, recommendations for joining the subjects of the domestic air cargo market in terms of electronic document management and simplification of customs procedures are developed. The improvement of economic mechanisms of development of cargo air transport in Ukraine on the basis of special economic zones of port type is offered.


2006 ◽  
Vol 09 (03) ◽  
pp. 463-490 ◽  
Author(s):  
Stephen X. H. Gong ◽  
Michael Firth ◽  
Kevin Cullinane

Although perceived as risk-laden, cyclical businesses with high financial and operating leverage, relatively low beta risks have been documented for the international transportation industry. This paper analyses whether such results are robust to different estimation designs and asserts that previous beta estimates are confounded by sample selection problems. Developing a more representative sample and implementing a number of different estimation designs, a range of industry beta estimates are derived. It is concluded that beta estimates of US-listed international transportation stocks are sensitive to estimation design and that industry beta risk is time-varying. This has implications for the industry cost of capital and pricing policies.


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