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Essays on efficient water allocation...

Qaddumi, Halla Maher.

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Essays on efficient water allocation in the agricultural sector (India).

Record Type:	Electronic resources : Monograph/item
Title/Author:	Essays on efficient water allocation in the agricultural sector (India)./
Author:	Qaddumi, Halla Maher.
Description:	294 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-11, Section: A, page: 4116.
Contained By:	Dissertation Abstracts International66-11A.
Subject:	Economics, General. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3194698
ISBN:	9780542394638

Essays on efficient water allocation in the agricultural sector (India).
Qaddumi, Halla Maher.

Essays on efficient water allocation in the agricultural sector (India). - 294 p.

Source: Dissertation Abstracts International, Volume: 66-11, Section: A, page: 4116.

Thesis (Ph.D.)--Yale University, 2005.

This dissertation investigates the optimal spatial allocation of water in the agricultural sector, taking as a case study the Vaigai river basin in Tamil Nadu, India. The first and second chapters identify efficient patterns of water use at the micro level, that is, amongst head, middle and tail farmers sharing an irrigation system. In the first chapter, we present a series of theoretical models, ultimately demonstrating that the equi-marginal principal is not appropriate for certain types of irrigation systems. High conveyance losses and stock externality effects rationalize decreasing head to tail allocations amongst farmer who are homogeneous in all respects except for relative location from the irrigation supply source. In the second chapter, we test the predictions of the theoretical models by studying farmer behavior on lined and unlined irrigation systems in the Vaigai basin. The purpose is to determine whether current water use patterns, which might appear to be sub-optimal, can actually be explained as an efficient response to natural characteristics of the irrigation systems. Accounting for heterogeneous water productivity across fields, we find that in two systems, farmers are not sharing joint irrigation supplies in an optimal manner. In contrast, in the third system, decreasing head to tail water allocations are found to be consistent with the efficient solution in the presence of conveyance loss. The third chapter analyzes water allocations at a more macro level, that is, across the three main agricultural reaches of the Vaigai basin. The objective is to assess the efficiency of current allocations and to consider the welfare impacts of alternative allocations. We estimate a polychotomous choice model with selectivity, which explicitly accounts for the effect of water both on the farmer's choice of land uses---number of crops or seasons to cultivate---and on net revenues. FIML estimates of the choice model lead us to conclude that, given current cropping patterns, water transfers from upper reaches to lower reaches of the basin are justified on efficiency grounds. Furthermore, re-allocations would increase the probability of tail farmers switching to multiple cropping seasons, resulting in even larger welfare gains in the longer-run.

ISBN: 9780542394638Subjects--Topical Terms:

1017424
Economics, General.

Essays on efficient water allocation in the agricultural sector (India).
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245 1 0 $a Essays on efficient water allocation in the agricultural sector (India).
300 $a 294 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-11, Section: A, page: 4116.
500 $a Director: Robert Mendelsohn.
502 $a Thesis (Ph.D.)--Yale University, 2005.
520 $a This dissertation investigates the optimal spatial allocation of water in the agricultural sector, taking as a case study the Vaigai river basin in Tamil Nadu, India. The first and second chapters identify efficient patterns of water use at the micro level, that is, amongst head, middle and tail farmers sharing an irrigation system. In the first chapter, we present a series of theoretical models, ultimately demonstrating that the equi-marginal principal is not appropriate for certain types of irrigation systems. High conveyance losses and stock externality effects rationalize decreasing head to tail allocations amongst farmer who are homogeneous in all respects except for relative location from the irrigation supply source. In the second chapter, we test the predictions of the theoretical models by studying farmer behavior on lined and unlined irrigation systems in the Vaigai basin. The purpose is to determine whether current water use patterns, which might appear to be sub-optimal, can actually be explained as an efficient response to natural characteristics of the irrigation systems. Accounting for heterogeneous water productivity across fields, we find that in two systems, farmers are not sharing joint irrigation supplies in an optimal manner. In contrast, in the third system, decreasing head to tail water allocations are found to be consistent with the efficient solution in the presence of conveyance loss. The third chapter analyzes water allocations at a more macro level, that is, across the three main agricultural reaches of the Vaigai basin. The objective is to assess the efficiency of current allocations and to consider the welfare impacts of alternative allocations. We estimate a polychotomous choice model with selectivity, which explicitly accounts for the effect of water both on the farmer's choice of land uses---number of crops or seasons to cultivate---and on net revenues. FIML estimates of the choice model lead us to conclude that, given current cropping patterns, water transfers from upper reaches to lower reaches of the basin are justified on efficiency grounds. Furthermore, re-allocations would increase the probability of tail farmers switching to multiple cropping seasons, resulting in even larger welfare gains in the longer-run.
590 $a School code: 0265.
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650 4 $a Economics, Agricultural. $3 626648
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