Do Water-Rich Regions Have a Comparative Advantage in Food Production? Improving the Representation of Water for Agriculture in Economic Models

Duchin, Faye; López‐Morales, Carlos A.

doi:10.1080/09535314.2012.714746

Cited by 38 publications

(26 citation statements)

References 43 publications

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“…The solutions to our scenarios exhibit a higher degree of regional specialization than what is actually observed; next steps could evaluate the impacts of protectionist trade policies or the imposition of other constraints, the most obvious one being water scarcity. We and our colleagues incorporate water as a factor of production in companion studies that include scenarios about the restriction of water withdrawals, including through caps or pricing [17][18][19][20]. Additional scenarios to consider in this context involve the analysis of policies to promote increased regional self-reliance on food.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Land Use Change and Global Adaptations to Climate Change

Juliá

Duchin

2013

Sustainability

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This paper uses the World Trade Model with Climate Sensitive Land (WTMCL) to evaluate possible future land-use changes associated with adaptations to climate change in a globalized world. In this approach, changes in regional agricultural production, which are based on comparative advantage, define patterns of land use change in agriculture in all regions of the world. We evaluate four scenarios that combine assumptions about future increases in food demand and future changes in land endowments of different productivities associated with climatic conditions: each scenario generates distinct patterns of regional specialization in the production of agricultural commodities and associated land-use change. The analysis also projects future food availability under the simulated conditions and the direction of likely changes in prices of the major agricultural commodity groups.

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Section: Conclusion and Discussionmentioning

confidence: 99%

Land Use Change and Global Adaptations to Climate Change

Juliá

Duchin

2013

Sustainability

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“…The quality and quantity dimensions of water scarcity constitute major challenges (Molden, 2007;UN, 2007;Noemdoe et al, 2006;Duchin et al, 2012;WWAP, 2012) and pricing of water is among the variety of policy interventions that could be envisaged to address both of these dimensions of scarcity and to enhance water use efficiency (Ortega et al, 1998;Ray, 2002;Molle and Berkoff, 2007;Molle, 2009). Specifically, water pricing is expected to play two important roles; that is, one is financial and another one economic (Dinar and Mody, 2004;Dinar and Saleth, 2005).…”

Section: Water Pricingmentioning

confidence: 99%

Valuation of Access to Irrigation Water in Rural Ethiopia: Application of Choice Experiment and Contingent Valuation Methods

Mekonnen

Gebreegziabher

Beyene³

et al. 2019

Water Econs. Policy

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Smallholder farmers in Africa rely heavily on rainfed agriculture. Those who have access to irrigation often receive it at no charge, but quantity, frequency and reliability may be limited without adequate revenue for maintenance and operation. Moreover, the absence of fees means that there are no pricing signals to encourage conservation of this scarce resource. In a situation where farmers do not pay for irrigation water use, this study investigates demand-side issues by eliciting farmers’ willingness to pay (WTP) for access to irrigation water. This study employs choice experiment (CE) and contingent valuation methods (CVMs) to value access to irrigation water, taking Ethiopia as a case in point. Unlike previous studies, this study covers current users and non-users of irrigation water using the same baseline (status quo) conditions — no irrigation — and compares the preferences of these two groups. The four attributes identified in the CE are number of crop seasons, frequency of watering in a season, crop type, and payment level. Results show that marginal WTP was Birr 17.7 (US$ 0.98), 261.8 (US$ 14.54) and 87.6 (US$ 4.87) for number of crop seasons, watering frequency in a season and crop type, respectively. Our estimates of farmers’ WTP for operation and maintenance of irrigation schemes per hectare of irrigated land range from Birr 738 (US$ 41.00) (from the CE) to Birr 784 (US$ 43.56) (from the CVM). We also find that, compared to current users, non-users were willing to pay more in general, as well as for the number of crop seasons specifically.

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“…At present several studies have appeared that use the RCOT framework to investigate alternative current scenarios and possible future situations. Empirical applications of the RCOT model so far have focused on alternative technologies in the agricultural sector by distinguishing between rainfed and irrigation techniques, see López-Morales and Duchin (2011), Duchin and López-Morales (2012), Springer and Duchin (2014), López-Morales and and Cazcarro et al (2016), and on the cellulosic biofuel production in the article by Dilekli and Duchin (2015). All contributions specify a different F * matrix depending on the particular topic studied.…”

Section: A Look At Empirical Workmentioning

confidence: 99%

Rents, resources, and multiple technologies; Ricardian mechanisms in input-output modelling

Steenge

Bouwmeester

Incera

2018

Economic Systems Research

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To allow for 'multiple technologies' to produce a homogeneous output in input-output models, Duchin and Levine [(2011) Sectors may use Multiple Technologies Simultaneously: The Rectangular Choiceof-technology Model with Binding Factor Constraints, Economic Systems Research, 23(3), 281-302] propose an optimization model constrained by primary resources. We show that the Duchin-Levine model contains two different mechanisms by which multiple technologies can arise. If a factor in short supply is shared by the original and the newly entering technology, the output of the original, lowercost technology will be reduced to make room for the higher-cost technology which is less intensive in that factor. In contrast, if the factor in short supply is technology-specific, a higher-cost technology supplements the original lowest-cost one, which stays fully active. Either mechanism implies a mechanism-specific set of prices, quantities and rents. We relate these results to classical views on comparative advantage, fixed output levels and the origin of rents.

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Do Water-Rich Regions Have a Comparative Advantage in Food Production? Improving the Representation of Water for Agriculture in Economic Models

Cited by 38 publications

References 43 publications

Land Use Change and Global Adaptations to Climate Change

Land Use Change and Global Adaptations to Climate Change

Valuation of Access to Irrigation Water in Rural Ethiopia: Application of Choice Experiment and Contingent Valuation Methods

Rents, resources, and multiple technologies; Ricardian mechanisms in input-output modelling

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