Cross-docking can reduce inventory in a retail supply chain but in certain situations it can result in more inventory being required in the stores to achieve the same customer service levels. In this paper we develop models to predict the changes in the retailer's system-wide inventory levels as...

This study investigates economies of scale in the US airline industry using annual data, from 1987 to 2009, on the largest airlines. The paper estimates both a translog and Cobb–Douglas model of both an economic and transportation definition of economies of scale. The study shows that the...