Foley's Thesis, Negishi's Method, Existence Proofs and Computation

Duncan Foleyís many-faceted and outstanding contributions to macroeconomics, microeconomics, general equilibrium theory, the theory of taxation, history of economic thought, the magnificent dynamics of classical economics, classical value theory, Bayesian statistics, formal dynamics and, most recently, fascinating forays into an interpretation of economic evolution from a variety of complexity theoretic viewpoints have all left -and continue to leave - significant marks in the development and structure of economic theory. He belongs to the grand tradition of visionaries who theorise with imaginative audacity on the dynamics, evolution and contradictions of capitalist economies - a tradition that, perhaps, begins with Marx and Mill, continues with Keynes and Schumpeter, reaching new heights with the iconoclastic brilliancies of a Tsuru and a Goodwin, a Chakravarty and a Nelson, and to which Duncan Foley adds a lustre of much value. In this contribution I return to mathematical themes broached in Foleyís brilliant and pioneering Yale doctoral dissertation (Foley, 1967) and attempt to view them as a Computable Economist would.The intention is to suggest that algorithmic indeterminacies are intrinsic to the foundations of economic theory in the mathematical modeEquilibrium existence theorems, Welfare theorems, Constructive proofs, Computability

Climate change in game theory

The study provides an overview of the application possibilities of game theory to climate change. The characteristics of games are adapted to the topics of climate and carbon. The importance of uncertainty, probability, marginal value of adaptation, common pool resources, etc. are tailored to the context of international relations and the challenge of global warming

Destination Unknown. Is There any Economics Beyond Tourism Areas?

In recent years, several papers have been focussing on various aspects of the tourism destination. The destination is a central issue within tourism studies, embodying in one single concept all the specific and problematic features of tourism, such as its systemic nature, in which “space” plays a fundamental role. In this paper we argue that is in the analysis of destinations that tourism economics shapes itself as an independent discipline within applied economics. Firstly, destinations are neither microeconomic agents nor macroeconomic aggregates, but territorial systems supplying at least one tourism product (a bundle of goods and services) able to satisfy the complex needs of the tourism demand. Secondly, the economic analysis of destinations identifies two specific theorems, the love of variety theorem and the coordination theorem which allow to interpret the tourism destination as a particular type of district, sharing at the same time some of the features of the industrial and of the cultural district.tourism economics, tourism areas, destination management

Climate change in game theory context

The aim of this paper is to survey the game theory modelling of the behaviour of global players in mitigation and adaptation related to climate change. Three main fields are applied for the specific aspects of temperature rise: behaviour games, CPR problem and negotiation games. The game theory instruments are useful in analyzing strategies in uncertain circumstances, such as the occurrence and impacts of climate change. To analyze the international players’ relations, actions, attitude toward carbon emission, negotiation power and motives, several games are applied for the climate change in this paper. The solution is surveyed, too, for externality problem