We present a restriction on the domain of individual preferences that is both necessary and sufficient for the existence of a social choice rule that is continuous, anonymous, and respects unanimity. The restriction is that the space of preferences be contractible. Contractibility admits a...

This paper develops a dynamic model of North-South trade in which environment plays an important role. Our model is based on Chichilnisky North-South model for the macroeconomic interaction between two sectors of the world economy. The latter was introduced in a static context. We introduce...

This chapter focuses on how the lack of property rights in North-South trade of primary resources can distort trade and threaten the sustainablility of development. This issue is examined within a two-region world economy where one region, the North, represents the industrial countries, and the...

We are on the threshold of a truly revolutionary era of discovery - ranging from the origins of the universe to new states of matter and microscopic machines, from a new understanding of the oceans and of the biological connections across the Earth's species to the functioning of the human brain...

The paper explores the impacts of resource export policies on major macro variables of the exporter and the importer economies. There are two regions, North and South, trading resources for industrial goods. Each region consumes two goods (basic consumption goods and industrial goods) and...

A conference report on UNESCO and Fundacion Bariloche sponsored conference with policy-oriented scientists from Africa, Europe, Latin America, and the United States of December 1976. The focus was on global modelling, its formalization and reliability. The applications were to problems of...

The theory of trade based on differential property rights presented here initiated in Chichilnisky (1991), based on the North-South model introduced in Chichilnisky (1981, 1986). The model and the results in this paper differ however from the previous work in that the dynamics of the renewable...

This chapter focusses on global environmental risks such as climate change, an issue that must be confronted as we move into the future. It proposes sound principles of risk management that make sense in today's society generally, going beyond their role of averting and hedging climate risks....

To explain the patterns of world trade of resources, this paper combines the biological dynamics of the renewable resource and game theoretical explanations of its extraction under different property regimes, with a general equilibrium model of North South trade (Chichilnisky, 1981, 1986). The...

Major pharmaceutical companies such as Smith Kline Beecham, Merck, Glaxo and Lilly, and a score of smaller ones, are developing profitable business opportunities in the world's forest while preserving biodiversity and producing incentives for leaving the forests intact. This case study covers...