This paper focuses on the prominent issue of automating bargaining agents within electronic markets. Models of bargaining in literature deal with settings wherein there are only two agents and no model satisfactorily captures settings in which there is competition among buyers, being they more than one, and analogously among sellers. In this paper, we extend the principal bargaining protocol, i...

The selection of immigrants by skill and education is a central issue in the analysis of immigration. Since highly educated immigrants tend to be more successful in host country labour markets and less of a fiscal cost it is important to know what determines the skill-selectivity of immigration. In this paper we examine the proportions of highly educated among migrants from around 80 source cou...

Despite the increasing academic interest in sensory dimension of tourist experience, quantitative empirical research field is limited by a lack measurement instruments for evaluating stimuli perceived tourists during destination visit. The study addresses this gap developing composite index to assess panorama, termed as “destination sensescape”. construct conceptualised formative multidimension...

This paper examines the configuration of global value chain berries (GVCB) by analysing trajectories and strategies trading firms; as well local advantages Chile Mexico that allowed them to integrate into this chain. The study applies basis methodology multiple case studies. results show companies configured GVCB making use their knowledge berry market, plant genetic improvement, growth in worl...

In this paper we use micro data on both trade and production for a sample of large Chinese manufacturing …rms in the footwear industry from 2002-2006 to estimate an empirical model of export demand, pricing, and market participation by destination market. We use the model to construct indexes of …rm-level demand, marginal cost, and …xed cost. The empirical results indicate substantial …rm heter...

We provide an analysis of the 2008-2009 trade collapse using microdata from a small open economy, Belgium. First, we find that changes in firm-country-product exports and imports occurred mostly at the intensive margin: the number of firms, the average number of destination and origin markets per firm, and the average number of products per market changed only very little. Second, econometric a...

This paper refreshes the debate around urban food deserts and improves evidence base for social value of traditional markets. It draws upon a wider project that brings together markets sector policy makers to develop new evidence, tools insights understand enhance community retail One important part is provision accessible, good quality, healthy affordable fresh food. Using case study Newcastle...

abstract—in this paper, the problem of secure transmission in two-hop amplify-and-forward (af) systems with an untrusted relay is investigated. to prevent the untrusted relay from intercepting the source message and to achieve positive secrecy rate, the destination-based cooperative jamming (dbcj) technique is used. in this method the destination sends an intended jamming signal to the relay. t...

In this paper, a cooperative algorithm to improve the orthogonal space-timefrequency block codes (OSTFBC) in frequency selective channels for 2*1, 2*2, 4*1, 4*2 MIMO-OFDM systems, is presented. The algorithm of three node, a source node, a relay node and a destination node is formed, and is implemented in two stages. During the first stage, the destination and the relay antennas receive the sym...

Migration of Virtual Machine (VM) is a critical challenge in cloud computing. The process to move VMs or applications from one Physical Machine (PM) to another is known as VM migration. In VM migration several issues should be considered. One of the major issues in VM migration problem is selecting an appropriate PM as a destination for a migrating VM. To face this issue, several approaches are...