Product bundling in global ocean transportation

There are over 20 'components' in an international door-to-door transportation, ranging from warehousing and distribution, to forwarding, documentation, transportation, customs clearance, etc..As tariffs in ocean transportation tend to converge due to competition and service homogenization, carriers, in competition with third party logistics service providers, strive to integrate door-to-door services under their control. In doing so, and among others, they invest heavily in logistics rather than ships that can nowadays be easily chartered in from institutional investors.Integration efforts however have been met with varying degrees of success in the face of skeptical and suspicious shippers requiring cost break down and more transparency. With the use of game theory, this paper attempts to develop winning service bundling strategies for ocean carriers, i.e. global supply chain solutions under all-in prices. Preliminary results show that, under certain conditions, bundling can be an equilibrium strategy for one or more carriers, and despite leveraging around captive liner services and potentially enhanced profits, bundling does not necessarily lead to a loss in social welfare.bundling;integrated logistics;liner shipping;vertical integration

Sarda female lambs bred at pasture: growth rate from weaning to reproductive activity

The traditional dairy sheep system in Sardinia presents 2 lambing seasons: in November-December for mature ewes and in February-March for primiparous. Replacement (20-25% of female lambs) usually came from mature ewes whereas all lambs born in January-February are slaughtered when their market price is low. These lambs could represent part of flock replacement that can integrate the traditional lamb breeding system, and also a flock replacement of ewes that are planned to lamb in late winter to have a continuous milk production all over the year. The aim of the present work, that represent an aspect of a wider trial, was to determine the suitability to breed this lambs under grazing condition monitoring their growth rate from weaning to the beginning of reproductive activity. At the “Bonassai” research farm an experiment was carried out from March 2004 to May 2005. 51 female Sarda lambs born from 19/01/2004 to 07/02/2004 (live weight 3.24±0.51 kg; mean±standard deviation) were weaned on average of 45 days (live weight 12.02±1.52 kg) and weighted monthly. After weaning feeding regimen was based on grazed forage crops (Lolium multiflorum Lam., Hedysarum coronarium L. and Cichorium intybus L.) and on natural pasture with an average stocking rate of 5.5 head/ha. The supplementation ranged between 0 - 1200 g/head/d of Lucerne and Italian ryegrass hay and 0 - 400 g/head/d of commercial concentrate, depending on herbage on offer. The amount of hay and concentrate offered during the trial represented 51% of total energetic requirements of lambs. Average lamb daily gain (ADG) during the experimental period resulted 74±11 g head/day. The ADG pattern showed a maximum value 30 days after weaning (139±33 g head/day) and a minimum value in January when herbage availability was low. At the beginning of reproductive activity lambs weighed on average 40.5±3.5 kg and their average body condition score was 3.03±0.12. The trial showed that is possible to breed lambs born in late winter at pasture. However an economic and technical evaluation of differences of these lambs compared to those bred in the traditional system is under evaluation

The Role of Ports in the Development of Mediterranean Islands

This paper examines the role of ports in the economy of Sardinia by means of the employment generated by port and port-related industries. The subject is important since Sardinia and other Mediterranean islands suff er from chronic unemployment and poor economic performance. The increase of the Europe-Asia commercial fl ows, the European Union enlargement and the renewed centrality of the Mediterranean have induced optimistic expectations on the development opportunities that may be created for the island communities by the maritime and port sectors. The employment generated by the maritime and port industry is an essential, although partial, measurement of the development impact of ports. Therefore its quantifi cation is indispensable in order to correctly estimate the impacts that a more central role of the Mediterranean might have on the local island economies. In the case of Sardinia, ports generate approximately three percent of the total island employment, and over eight percent on average of the employment of the single municipalities. This result adds to the vital role that ports have to play as transportation nodes and in creating value added

PROBABILISTIC REGIONAL LANDSLIDE HAZARD ASSESSMENT FOR THE ENGURI DAM (JIVARI, GEORGIA)

The Enguri Dam forms a reservoir in a seismically active area in the foothills of the Caucasus Mountain range near Jvari, Georgia. The slopes are steep, highly fractured, and weathered, which make them at risk to failure during or following extreme rainfall events. Hydroelectricity produced by the water retained by the 271-m dam provides almost half of the electricity for the country. The reservoir perimeter is more than 40 km and the surrounding slopes span an area of more than 30 km2. The size of the area and paucity of slope data have made slope-failure hazard assessment of the broader area impossible. Only limited previous work has been completed and it was focused on a single creeping landslide. This work evaluated the landslide hazards for the reservoir area using data from past studies, field investigations, and remotely sensed inputs, integrated with Geographic Information System (GIS) based slope stability analysis. The GIS-based Probabilistic Infinite Slope Analysis modeling (PISA-m) program was used to evaluate the static slope stability of the region. The geotechnical properties (e.g., unit weight, the angle of internal friction, cohesive strength, and moisture content) were obtained from published literature and field data collection. The remotely sensed Normalized Difference Vegetation Index (NDVI) derived from Landsat 8 was used to account for the vegetation distributions in calculations of root strengths for the slopes. The uncertainties in the input parameters were estimated using extreme value distributions. The static and seismic slope stability analysis reveal that the areas proximal to the dam have low safety factors against sliding and are very susceptible to slope instability, especially to seismic events. The verification of the modeled stability with the landslides mapped using high-resolution remotely sensed data and fieldwork indicates that the PISA-m provides a promising program for regional slope stability analysis. Furthermore, to better understand the mechanics of the sliding area, we performed a Finite Element slope stability analysis with Rocscience Phase2 and a Limit Equilibrium analysis with Rocscience Slide

A Critical Review of Port Pricing Literature: What Role for Academic Research?

AbstractFew topics in the area of port economics have attracted so much attention from the side of the academic community as port pricing. The impact of such literature has been quite tangible in terms of policy development and the adoption of cost-based charging practices by many ports. Nonetheless as the port sector changes, new areas of research emerge and the academic community needs to look beyond the traditional theories to provide research that matters.This manuscript provides a review of the existing literature on port pricing with a specific focus on the literature of the last decade. In the paper the author carried out a systematic analysis of the main maritime and port economics journals and highlighted the current literature gaps and the areas that can benefit from academic attentions. Among the most interesting ones there are charging practices aiming at reducing externalities, the development of all inclusive port charges and the application of revenue management for port infrastructure utilization

Role of pasture in the growth, intake and meat quality of Sardinian cattle breeds

Cattle meat production in Sardinia is based mainly on suckler-cows system. Such system, based on the selling of calves to the fatness centers and characterized by a limited use of resources out of farm suffered a severe crisis by the introduction of bluetongue emergencies in Sardinia, which determined restrictive measures for animal movements. Hence the farms have been forced to fatten calves, changing the production system and increasing the costs. The use of pasture in the fattening of animals could reduce feeding costs and improve the nutritional composition of meat. For that reason 3 studies were carried out, in order to evaluate if grazing can represent a chance for Sardinian beef system,. The main results were: Pasture-fed animals showed daily live gain and dressing percentage similar to other breeds, more specialized than Sardinian breeds for meat production, obtained in similar conditions. Sardinian cattle showed an high capacity in exploiting the Mediterranean pastures, thanks to its selective grazing. Pasture-fed animals have shown specific characteristics of meat as an higher content of n-3 PUFA, beneficial for the human health; that improves both nutritional characteristics and consumer perception of the meat produced by Sardinian young bulls. Overall, fattening of Sardinian bulls based on pasture, with certain levels of supplementation, is a system that can allow to obtain high quality meat with lower costs

Potential and limiting factors in the use of alternative fuels in the European maritime sector

The maritime sector is a key asset for the world economy, but its environmental impact represents a major concern. The sector is primarily supplied with Heavy Fuel Oil, which results in high pollutant emissions. The sector has set targets for deacrbonisation, and alternative fuels have been identified as a short-to medium-term option. The paper addresses the complexity related to the activities of the maritime industry, and discusses the possible contribution of alternative fuels. A sector segmentation is proposed to define the consumption of each sub-segment, so to compare it with the current alternative fuel availability at European level. The paper shows that costs and GHG savings are fundamental enablers for the uptake of alternative fuels, but other aspects are also crucial: technical maturity, safety regulation, expertise needed, etc. The demand for alternative fuels has to be supported by an existing, reliable infrastructure, and this is not yet the case for many solutions (i.e. electricity, hydrogen or methanol). Various options are already available for maritime sector, but the future mix of fuels used will depend on technology improvements, availability, costs and the real potential for GHG emissions reduction.(c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)