A large US retailer that procures transportation services from third-party carriers experienced an unexpected jump in fuel surcharges as the price of diesel fuel skyrocketed in the summer of 2008. As a result, it sought to limit its future exposure to diesel price risk. We collaborated with this retailer to create a lane assignment optimizer (LAO) that incorporates diesel price risk when select...

This study developed a model with cost functions formulated for different stages of cargo transport operation. A case analysis was performed with actual data from four air cargo traffic routes and eight aircraft types to validate the applicability of the model. The results show that the optimal payloads for various aircraft types vary with fuel price fluctuations. Furthermore, this study determ...

Keywords: Jet aircraft Fuel price Operating cost Leontief technology Translog a b s t r a c t Investigation of the airline response to a fuel price increase is in effect an investigation of the role of variable interactions in aircraft cost models. We examine the impact of fuel price on aircraft costs and airline operational strategies by developing two classes of operating cost models for jet ...

Rapidly declining gasoline prices from their record high during the summer of 2008, while ethanol prices remained relatively high, made it difficult for many bio-fuel policy modelers to fully explain the impacts of U.S. bio-fuel policies on fuel prices. Using profitmaximization models for blenders, refiners, and distillers, we conduct a comparative static analysis to measure the relative magnit...

The use of Generator has become a very common in almost every passive infrastructure companies, Industries, hospitals, Townships etc, while by using these Generators, a number of challenges are faced by the users and companies. Among all other challenges fuel stealing from the generator fuel tank has become an alarming issue as the price of the fuel is touching sky high day by day. Although man...

Fuel cells represent a clean alternative to current technologies for utilizing hydrocarbon fuel resources. Polymer electrolyte membrane fuel cells (PEMFCs) have acquired due importance as they are best suited for applications where a quick start up is required such as in automobiles. The prime requirements of fuel cell membranes are high proton conductivity, low methanol/water permeability, goo...

We propose a dynamic hedging strategy for jet fuel which strikes a balance between hedging against jumps in the price of jet fuel and placing bets that the price will rise, lowering the overall cost of jet fuel. We model the commodity price using an unobservable two-factor model that allows mean-reversion in short-term prices and uncertainty in the equilibrium level to which prices revert. We c...

Combined cooling, heating, and power (CCHP) systems produce electricity, cooling, and heat due to their high efficiency and low emission. These systems have been widely applied in various building types, such as offices, hotels, hospitals and malls. In this paper, an economic and technical analysis to determine the size and operation of the required gas engine for specific electricity, cooling, ...

Using household travel diary data collected in Germany between 1997 and 2012, we employ an instrumental variable (IV) approach to estimate fuel price and effi ciency elasticities. The aim is to gauge the relative impacts of fuel economy standards and fuel taxes on distance traveled. We fi nd that the magnitudes of the elasticity estimates are statistically indistinguishable: higher fuel prices ...

We empirically analyze convergence of European producer and consumer prices for diesel fuel and investigate the role of excise taxation. By comparing the speed of convergence of prices and taxes we find a surprisingly fast speed of convergence for consumer prices. While this can in part be explained by fuel tourism, the main driving force is producer price dynamics. Tax convergence contributes ...