Dimitrios Diamantaras

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Much of the literature on the endogenous generation of a city employs increasing returns to scale in order to obtain agglomeration. In contrast, the model considered here focuses on the role of marketplaces or trading centers in the agglomeration of population as cities. Gains to trade in combination with transportation and marketplace setup costs suffice(More)
OBJECTIVE To evaluate the efficacy and safety of celecoxib for pain management in post-tonsillectomy adult patients. DESIGN A randomised, double-blind, placebo-controlled, phase 3 clinical trial was conducted in an adult population (aged 18-55 years), with a parallel group design using an allocation ratio of 1:1. METHODS Eighty patients underwent(More)
Social networks depict complex systems as graph theoretic models. The study of the formation of such systems (or networks) and the subsequent analysis of the network structures are of great interest. For information systems research and its impact on business practice, the ability to model and simulate a system of individuals interacting to achieve a(More)
In this paper we argue that ambiguity, combined with social opinion formation, can be used as the foundation of a game-theoretic equilibrium concept that transcends the standard Nash equilibrium concept, applied to a model of the tragedy of the commons. Our approach sheds light on the international environmental crisis and the relevant ongoing international(More)
Many cities are located on rivers or coasts. This paper argues that such cities developed as transportation hubs or markets for interregional trade, since these locations provide better access (lower marginal transportation costs) to other regions. Local products are collected at such hubs, and interregional trade then takes place among these transportation(More)
We discuss the emerging field of New Classical economics from the perspective of some classical economic questions regarding the generation of wealth. We first discuss the foundational hypotheses of New Classical economics. We identify some problems with some basic concepts in its structure and suggest some avenues to amend and enhance this emerging field.(More)
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