Structure et pouvoir dans les négociations multi-latérales : une application à la politique de l'eau en France

International audienceEnvironmental policies are characterized by a growing emphasis on participation, devolution and negotiated decision making. There is therefore a rising demand for applied simulation models which can be used as 'negotiation-support tools' to analyse the impact of the negotiation structure on the negotiated outcome. In this paper, we apply a computable non cooperative bargaining model designed to study complex real world multi-agent, multi-issue negotiation problems, to a specific negotiation process, involving water use and storage capacity. The application is on the upper part of the Adour Basin in south-western France. The case study is modelled with seven aggregate players (three aggregate farmers representing three sub-basins - upstream, midstream and downstream - two environmental lobbies, the taxpayer and the water manager), and with up to nine negotiated variables (water quotas and water prices in each sub-basin, and the capacities of three dams). Comparative statics experiments highlight a number of aspects of the relationship between negotiation structure and bargaining power

A Micro-econometric Analysis of Grape Supply Contracts in Australia

This paper examines wine grape supply contracts used in the main grape growing regions of Australia. An empirical analysis provides insight into specific aspects of contract design and implementation. Statistical analyses of sample data reveal differences between regions in contract specifications. Lower quality grape growing regions place a greater reliance on grape quality assessment to determine bonus/penalty payments compared to higher quality regions. Contracts in higher quality regions place greater emphasis on explicit winery involvement and direction in vineyard management. Results indicate that longer duration contracts are more inclusive in terms of the number of clauses included. Evidence of risk shifting (i.e., winery to grower) for high quality grapes is reported, where the price received by growers is determined by the bottle price of the wine produced

Long-Term Contracts and Asset Specificity Revisited: An Empirical Analysis of Producer–Importer Relations in the Natural Gas Industry

Asset specificity, Econometric analysis, Contracts, Natural gas, Transaction costs, Institutions,