Node grouping is a common way of adding structure and information to networks that aids their interpretation. However, certain networks benefit from the grouping of links instead of nodes. Link communities, for example, are a form of link groups that describe high-quality overlapping node communities. There is a conceptual gap between node groups and link groups that poses an interesting visual...

One of the main causes behind the trade collapse of 2008-09 was a significant fall in the demand for durable goods. This paper develops a small country, overlapping generations model of international trade in which goods durability gives rise to a more than proportional fall in trade volumes, as observed in 2008-09. The model has three goods two durable, traded goods and one non-durable, non-tr...

Low fruit and vegetable consumption is an important contributor to the global burden of disease. In the wake of the United Nations High-level Meeting on Non-Communicable Diseases (NCDs), held in September 2011, a rise in the consumption of fruits and vegetables is foreseeable and this increased demand will have to be met through improved supply. The World Health Organization, the Food and Agric...

The design of an asymmetric serial link poses a number of trade-offs for the designer. This paper describes measurements from a 0.25µm CMOS test chip which show that a properly designed asymmetric link can achieve 2Gb/s using single-ended signalling with a bit-error rate < 10-14. Architecture Using high-speed serial links in network switches can provide significant performance improvements [1]....

Tn applying cooperative game theory to economic problems of exchange, it is standard to assume that all logically possible coalitions may form. However, because of institutional, legal, or physical barriers, it may in fact be impossible for certain sets of agents to communicate or trade with one another directly. It would seem worthwhile to recognize this and to analyze the impact of such barri...

In this paper we discuss our explorations encouraging discussion and information exchange in highbandwidth, real-time settings such as trade shows, fairs and conferences. We detail the iterative construction and planned testing of the “PittiMobi” system, a mobile phone system designed to augment face to face communication between buyers, sellers and the press at a series of fashion trade shows....

During the last decades, international trade flows especially of the industrialized countries allegedly became more and more intra-industry. At the same time, employment perspectives particularly of the low-skilled by tendency deteriorated in these countries. This phenomenon is often traced back to the fact that intra-industry trade, which should theoretically involve low labor market adjustmen...

We construct a time-variant, price-based measure of trade distortions in 28 manufacturing industries for a large sample of countries over the last four decades, documenting facts consistent with the argument that changes in relative prices are an important channel through which an economy’s openness affects outcomes. First, we find that price distortions at the aggregate level are negatively as...

This paper investigates the link between foreign aid and exports between the two shores of the Mediterranean. The main hypothesis is that the Euro-Mediterranean Process should promote not only trade but also stronger links between the European Union (EU) and the Middle East and North Africa (MENA). Hence, we expect development aid to have a positive impact on exports, which could also intensify...

We study a model of a decentralized firm with moral hazard and intrafirm trade. Relationship-specific investments, by making internal trade more profitable at the margin, result in greater expected trade volume and thereby greater compensation risk borne by division managers. Formally accounting for this investment/risk link overturns some key findings in prior incomplete contracting studies. F...