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In an economy where there is no double coincidence of wants and without public recordkeeping of past transactions, money is usually seen as the only mechanism that can support exchange. In this paper we show that, as long as the population is finite and agents are sufficiently patient, a social norm establishing gift-exchange can substitute for money.(More)
We study the role of contract enforcement in shaping the dynamics of international trade at the firm level. We develop a theoretical model to describe how agents build reputations to overcome the problems created by weak enforcement of international contracts. We find that, all else equal, exporters start their activities with higher volumes and remain as(More)
Homozygous familial hypercholesterolemia (hoFH) is caused by mutations in the low-density lipoprotein receptor gene and is characterized by severe hypercholesterolemia from birth and onset of premature cardiovascular disease (CVD) during childhood. The onset and progression of CVD using currently available testing methods in children with hoFH have not been(More)
A major concern in modern monetary theory has been the development of models where money is essential and yet substantive issues can be analyzed in a tractable manner. At the center of this e¤ort is Lagos and Wright (2005). The tractability in their framework is due to the fact that trade alternates between a centralized market and a decentralized market. A(More)
Macrolides are characterised by their basic structure which is made up of a lactonic cycle with 2 osidic chains. They are classified according to the number of carbon atoms in the cycle : 14 membered macrolides (erythromicin, roxithromycin, dirithromycin, clarithromycin), 15 membered (azithromycin) and 16 membered (spiramycin, josamycin, midecamycin)(More)
UNLABELLED The use of communication technologies may overcome some of the difficulties of conventional, paper-based, self-management of chronic diseases. This paper aims to describe and evaluate the use of P'ASMA - a web based asthma self-management support tool regarding the opinion of patients and their adherence to monitoring in comparison to standard(More)