Water Supply Vol 5 No 6 pp 189–196 © IWA Publishing 2005
Pricing irrigation water under asymmetric information and cost recovery constraints
V. Gallerani*, M. Raggi** and D. Viaggi***
*Department of Agricultural Economics and Engineering, Viale Fanin, 50,40127 Bologna, Italy, (E-mail: raggi@stat.unibo.it)
**Department of Agricultural Economics and Engineering, Viale Fanin, 50,40127 Bologna, Italy, (E-mail: raggi@stat.unibo.it)
***Department of Agricultural Economics and Engineering, Viale Fanin, 50,40127 Bologna, Italy, (E-mail: raggi@stat.unibo.it)
ABSTRACT
The objective of this paper is to discuss how policy makers may deal with irrigation water pricing under asymmetric information, positive transaction costs on payments and cost recovery constraints. The issue is dealt with through the development of a principal agent model and its application to a pilot case study in Emilia Romagna, Italy. The results show that using a menu of contracts may improve the overall social welfare derived from irrigation. However, differences in performance among instruments (and hence the choice of the optimal pricing strategy) are critically determined by the amount of the full cost of water and of transaction costs. Moreover, differentiation among farmers may encounter policy obstacles as a potential source of conflicts. Keywords Agriculture; asymmetric information; contracts; irrigation; principal-agent; water pricing
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