Michael E Porter, a leading management thinker, identifies seven uniquely American competitive advantages to explain the country’s pre-eminence. He points to America’s environment for entrepreneurship, its science, technology, and innovation machine, its institutions for higher learning, its...

The integration of mobile workplaces is a major challenge for companies. First-wave mobile solutions mostly support existing business processes through adding value in terms of increased efficiency. Second-wave mobile solutions comprise a re-engineering of the mobile business processes, add...

Recently, companies start realizing the necessity to equip their mobile workforce with a mobile solution. But this is not enough to integrate the mobile workforce into the business process. Therefore it is necessary to find for each mobile employee a mobile solution that supports his/her whole...

The integration of mobile workplaces in the (electronically mapped) intra-enterprise value chain is a major and still increasing corporate IT issue. Although the usage of mobile technologies for this purpose is far behind expectations and numerous failures can be observed,still little work has...

The noted management guru Michael E Porter identifies seven unique competitive advantages for the U.S. economy to explain the country’s pre-eminence; they range from (among others) its environment for entrepreneurship, its institutions of higher learning, its technology and innovation machine,...

In the current technical report, we consider for the Greek road transport various policies of emission control for the period 2014-2030, and for the first time we estimate the related greenhouse gas emissions expressed in CO2 equivalent and the total costs. These policies result from the high...

In this paper we investigate the convexity of the annual total cost function for the Hadley & Whitin (1963) continuous review (Q,R) inventory model with backorders and fixed lead-time, when the reorder point is non-negative and the cost per unit backordered is used to calculate the expected...

In this paper we investigate the minimization process of the exact cost function for a continuous review (Q,R) inventory model with non-negative reorder point and fixed lead-time. Backorders are allowed and the unit shortage cost is used to determine the expected annual shortage cost. Provided...

In this paper we present for Greece a methodology for predicting emissions and estimating the abatement costs of the transport sector, focusing our analysis on passenger cars. In the first section we estimate for the period 2000-2030 the annual emissions of the most important pollutants using...

The noted management guru Michael E Porter identifies seven unique competitive advantages for the U.S. economy to explain the country’s pre-eminence; they range from (among others) its environment for entrepreneurship, its institutions of higher learning, its technology and innovation machine,...