Abstract
The classical approach of assessing sustainability with respect to its three underlying pillars, ecological, economic, and social, is adopted in this paper, with an added emphasis on estimating the simultaneous effects of each pillar on the other two. The paper assesses the impact of policy-driven changes in cultivation practices in five districts in the south-western Indian state of Karnataka. A comparative statics analysis using a simultaneous equations model is developed to capture the stability of each pillar into the future and their concurrent interactive impacts and trade-offs. Ecological and economic impacts of policies favoring organic farming are estimated to be uniformly significant and positive in the study districts. However, the impact on socio-cultural criteria is subjective to the eco-regional context. Cost savings, through producing organic inputs on-farm, maximizes synchrony among the three pillars vis-à-vis sourcing these inputs from the market. With more reliance on organic inputs, better prospects are estimated for small and rain-fed farms compared to large and irrigated farms.
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Notes
Economic Survey 2011–12 is available online at: http://indiabudget.nic.in/es2011-12/estat1.pdf.
At 122.5 kg/ha, the NPK application in Karnataka is still less than the national average of 131.1 kg/ha for 2005–2006.
A taluk is a subdistrict administrative division that entails local government for exercising certain fiscal and administrative power over the villages and municipalities within its jurisdiction.
http://www.kar.nic.in/finance/bud2010/budhig10e.pdf and Karnataka State Annual Budget 2011–2012.
The words ‘dimension’ and ‘criteria’ in the context of sustainability are synonymously used in this paper.
Weightage for each variable constituting the CIA for any household is calculated as
$$ W_{j} = \frac{1}{{D \times SD\left( {S_{j} } \right)}} $$where \( D = \sum\limits_{j = 1}^{3} {\left\{ {\frac{1}{{SD\left( {S_{j} } \right)}}} \right\}} \), SD(S j ) = standard deviation of S j1 to S j3. This ensures that a lower weightage is assigned for the variable that is highly dispersed and diverse, indicating the unequal distribution of assets within a village.
PIA workshops were held in all study sites involving farmers, researchers, as well as government officers and NGO representatives implementing the policy. Details of PIA can be found in Purushothaman et al. (2012b).
While computing the composite index of financial criteria (F), the indicator NDT (indebtedness) is used as its reciprocal, as the absence of indebtedness contributes to financial sustainability.
Karnataka state agricultural action plans can be accessed at: http://kappec.kar.gov.in/future.html, http://empri.kar.nic.in/Directives%20and%20actions%20taken%202011-02-02%20CFN%20RMNS.pdf, and http://ces.iisc.ernet.in/envis/sdev/etr15.pdf.
Matrices of coefficients of endogenous and exogenous variables for comparative statics analysis: the matrices of coefficients of endogenous (of ∆E, ∆F, and ∆S as in matrix A in the first expression below) and exogenous (a 1 to a n , b 1 to b m , and c 1 to c r as in matrix B in the second expression below) were formed in order to estimate the future status of ∆E, ∆F, and ∆S.
$$ A = \begin{array}{*{20}c} 0 & {\beta_{{\left( {\Updelta E\Updelta S} \right)}} } & {\beta_{{\left( {\Updelta E\Updelta F} \right)}} } \\ {\beta_{{\left( {\Updelta s\Updelta e} \right)}} } & 0 & {\beta_{{\left( {\Updelta S\Updelta F} \right)}} } \\ {\beta_{{\left( {\Updelta F\Updelta E} \right)}} } & {\beta_{{\left( {\Updelta F\Updelta S} \right)}} } & 0 \\ \end{array} $$$$ B = \begin{array}{*{20}c} {\beta_{{\left( {\Updelta Ea_{1} } \right)}} } & {\beta_{{\left( {\Updelta Ea_{2} } \right)}} \ldots } & {\beta_{{\left( {\Updelta Ea_{n} } \right)}} } \\ {\beta_{{\left( {\Updelta Sb_{1} } \right)}} } & {\beta_{{\left( {\Updelta Sb_{2} } \right)}} \ldots } & {\beta_{{\left( {\Updelta Sb_{m} } \right)}} } \\ {\beta_{{\left( {\Updelta Fc_{1} } \right)}} } & {\beta_{{\left( {\Updelta Fc_{2} } \right)}} \ldots } & {\beta_{{\left( {\Updelta Fc_{r} } \right)}} } \\ \end{array} . $$From matrices A and B, we find how ∆E, ∆F, and ∆S further become constant or stable in two different scenarios: WP and BAU. The scenarios capture the change in values of exogenous variables that influence ∆E, ∆F, and ∆S to reach relatively stable levels of \( \Updelta \hat{E},\Updelta \hat{F}\,{\text{and}}\,\Updelta \hat{S} . \)
For instance, in the case of the WP scenario in Udupi district, the change in variable IINORG (inorganic input use, a determinant of \( \Updelta \hat{E} \)) is expected to decrease by 30 %, whereas for the BAU scenario, it is expected to increase by 30 %, both with respect to 2009 values.
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Authors gratefully acknowledge the support from EU FP6 project ‘‘Land use policies and sustainable development in developing countries (LUPIS)", as also valuable comments from Dr Gopal Kadekodi and Rosa Abraham
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Handled by Vinod Tewari, The Energy and Resources Institute (TERI) University, New Delhi, India.
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Purushothaman, S., Patil, S. & Francis, I. Assessing the impact of policy-driven agricultural practices in Karnataka, India. Sustain Sci 8, 173–185 (2013). https://doi.org/10.1007/s11625-012-0188-y
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DOI: https://doi.org/10.1007/s11625-012-0188-y