The main hypothesis of the dissertation is that “e-grocery with home delivery can be more efficient than supermarket retailing handling a similar volume of sales”. The e-grocery business should be seen as an assembly industry producing shopping baskets. Only in this way can the new electronic channel work efficiently. The e-grocery business is usually seen as a supermarket copied into an electr...

Higher market complexity and increasing competitive intensity are forcing traditional product-manufacturing companies to change their position in the goods–services continuum by continuously extending the service business. However, the existing literature tends to be somewhat vague in defining service strategies for manufacturing companies wishing to move along the continuum. The purpose of thi...

Abstract: In recent decades, high profits of extended warranty have caused that third-party firms consider it as a lucrative after-sales service. However, customers division in terms of risk aversion and effect of offering extended warranty on manufacturers’ basic warranty should be investigated through adjusting such services. Since risk-averse customers welcome extended warranty, while the cu...

Because of today's strong competition, most manufacturing organizations continually try to increase their profits and reduce their costs. Accurate sales forecasting is certainly an inexpensive way to meet these goals because it leads to improved customer service, reduced lost sales and product returns, and more efficient production planning (Doganis et al., 2006). Forecasting future demand is c...

We derive approximations for the service levels of two-echelon inventory systems with lost sales and Poisson demand. Our method is simple and accurate for a very broad range of problem instances, including cases with both high and low service levels. In contrast, existing methods only perform well for limited problem settings, or under restrictive assumptions.