Facilitating multimodal logistics and enabling information systems connectivity through wireless vehicular networks

The adoption of information and communication technology (ICT) has made it possible to experience high levels of visibility, control and connectivity across the entire supply chain. However, in road transport logistics, wireless ICT applications like cellular networks, Wi-Fi, UMTS, 4G and WiMax have not entirely solved reliability and connectivity problems due to difficulties associated with limited range, scalability and security. This paper examines the feasibility of using a vehicular network technology, dedicated short range communication (DSRC), in a multimodal logistics environment as means of providing enhanced visibility and connectivity using a secure access architecture. The secure access architecture is necessary to provide a high degree of security to the detailed visibility involving road haulage feeding port operations using a centralised port service.     

The Influence of Managerial Relations on Waves of Employee Involvement

One of the most enduring issues in the debate about employee involvement (EI) and workers' participation is how it survives over time, and to what extent the dynamics of EI is linked with labour-management relations. In this article, which draws upon data collected in a two-year study of 25 organizations, it is suggested that managerial relations is a significant factor in explaining waves of EI, and one that is frequently overlooked. Waves of EI can be assessed in terms of the twin concepts of centrality and prominence, terms that are amplified below. The introduction of EI techniques is motivated by a number of forces, but one of the most important is a desire by managers to be noticed, to engage in ‘impression management’, via the creation of new schemes. Despite having high-profile introductions, these schemes soon tend to fade in importance, to a large extent because of problems within management such as internal political rivalries, low supervisory commitment to schemes, inadequate training provision or the downgrading of EI by management arising from conflicting priorities.     

Payments for environmental services to promote “climate‐smart agriculture”? Potential and challenges

Payments for environmental services (PES) have gained wide popularity as approaches to promote environmentally friendly land use or agricultural production practices. Yet academics have also voiced concerns against seeing PES as a panacea. This article discusses whether PES is an appropriate and promising approach to promote so‐called “climate‐smart agriculture” (CSA) practices, which we define as agricultural production practices that contribute to CO₂ emission reductions and/or removals and provide benefits to farmers via increased productivity and profits and reduced vulnerability to climate change. PES appears most promising for the promotion of CSA practices in small‐scale farming contexts with low incomes. Effective design, however, requires solid estimates of cost and benefit flows from CSA adoption over time, accounting for differences in socioeconomic and ecological conditions, and addressing the risk of leakage. Funding for such PES will likely have to come from public sources, and seems most promising where synergies with other objectives such as agricultural development, food security, and climate adaptation or other environmental services exist. The potential of alternative approaches for CSA support such as taxation with rebates for CSA practices, CSA‐related investment support such as microcredits, and hybrid approaches such as conditional microcredit should be further investigated.     

Optimised asset replacement strategy in the presence of lead time uncertainty

This paper develops an optimal replacement strategy for capital intensive equipment with long delivery lead time. The strategy is based on an extended version of the real options approach to repeated replacement decisions, in which the goal is to determine the operating cost and delivery lead-time conditions upon which a replacement should be ordered.The real options approach to capital replacement problems is superior to traditional net present value (NPV) approaches, as it values of the option to adapt decisions based on current (rather than predicted) system conditions. However, previous applications of the real options approach to repeated replacement have not considered the impact of long and uncertain lead times, and have therefore focused on when to replace rather than when to order. Delivery lead times are an important consideration in an expanding mining sector in which demand for heavy mobile equipment (HME) exceeds the capacity of suppliers to provide the equipment in a timely manner.The inclusion of a lead time element results in a decision with an “option” period and an “option-less” period. Simulations are used to demonstrate the improved outcome of real options based replacement strategies compared with those derived using a traditional NPV approach, both with and without lead times. Further the performance of the order placement strategy with different boundary conditions, bounded and reflecting, is explored. No appreciable difference in performance of these strategies was identified. The optimal order placement strategy incorporating delivery lead times is displayed on a simple chart which is accessible to fleet management personnel.     

Postmodernity,globalisation and nationalist conflict in the former Yugoslavia

During the 1990s, several of the conflicts that have demanded most media attention have been associated with the disintegration of the Yugoslav Federation. A number of attempts have been made to outline the main causes of these, but these causal factors remain difficult to describe definitively, largely owing to the complexity of the post‐Yugoslav political landscape. This paper studies the validity of employing a postmodern paradigm for investigating the conflicts in former Yugoslavia, as well as other current conflicts, arguing that the present cultural and philosophical context has to be addressed. After an outline of some of the key aspects of postmodernity, the focus centres on the importance of the media and the postmodern perspective on the issue of the nation state. Key theories related to postmodern conflict, with relation to economic and cultural factors, are outlined. These are evaluated as regards their applicability to the Yugoslav conflicts and ‐ by extension ‐ to all future wars in the postmodern era.