Single-ratio and multi-ratio fractional programs in applications are often generalized convex programs. We begin with a survey of applications of single-ratio fractional programs, min-max fractional programs and sum-of-ratios fractional programs. Given the limited advances for the latter class...

Proofs from complexity theory as well as computational experiments indicate that most lot sizing problems are hard to solve. Because these problems are so difficult, various solution techniques have been proposed to solve them. In the past decade, meta-heuristics such as tabu search, genetic...

The coordination of just-in-time production and transportation in a network of partially independent facilities to guarantee timely delivery to distributed customers is one of the most challenging aspects of supply chain management. From the theoretical perspective, the timely...

The present paper discusses an approach to solve the joint replenishment problem in a production environment with concave production cost functions. Under this environment, the model leads to a global optimization problem, which is investigated by using some standard results from convex...

Services form an important part of the economy today. Innovation for service firms is as important as for manufacturing, but the innovation process for service firms is comparatively little studied. In this paper, I review the literature there is on the innovation process for service firms, and...

We develop a bivariate spectral Granger-causality test that can be applied at each individual frequency of the spectrum. The spectral approach to Granger causality has the distinct advantage that it allows to disentangle (potentially) di®erent Granger- causality relationships over di®erent...

Developments in information technology (IT) are perceived to promote interorganizational cooperation within and across industry boundaries. IT-enabled cooperation has challenged the creation of interorganizational competitive advantages, as conceptualized in the Relational View (e.g., Dyer and...

This paper attempts to explain how institutions in the reform era of China have evolved by looking into the FDI policies and regulations. As history matters, we don’t look solely into the previous direct stage to the reform era, and rather look into a longer history starting from prior to the...

This paper summarizes key attributes and the uniqueness of smart business networks [1], to propose thereafter an operational implementation architecture. It involves, amongst others, the embedding of business logic specific to a network of business partners, inside the communications control...

The aim of this paper is to contribute to the discussion on the issue of when knowledge leaks between various groups and when knowledge sticks within one learning group. Theoretical insights propose that one needs strong ties for knowledge transfer and sharing. A preliminary case study, however,...