To Mix or Specialise? A Coordination Productivity Indicator for English and Welsh farms

Ang, Frederic; Kerstens, Pieter Jan

doi:10.1111/1477-9552.12177

Cited by 5 publications

(23 citation statements)

References 38 publications

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“…This study contributes to the literature in three ways. First, it extends previous work from Ang and Kerstens (2016) that models upcycled crops as animal feed, by explicitly considering the manure cycle, that is, by distinguishing the upcycled manure as fertilizers for crop production and the remaining manure that is removed from the farm. In this way, we explicitly model circularity aspects of many Dutch dairy farms.…”

Section: Introductionmentioning

confidence: 81%

“…Färe et al (1997) quantified potential efficiency gains from reallocating land use inputs for a sample of Illinois grain farms. Focusing on English and Welsh farms, Ang and Kerstens (2016) combined these two aspects, and characterized the inputs as joint or output-specific ones following Cherchye et al (2013). Kahindo and Blancard (2022) investigated the reduction of pesticides use through optimal reallocation between arable farms in France.…”

Section: Introductionmentioning

confidence: 99%

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Mitigating greenhouse gas emissions on Dutch dairy farms. An efficiency analysis incorporating the circularity principle.

Wang,

Ang,

Oude Lansink

2023

Agricultural Economics

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Circular agriculture is vital to achieve a substantial reduction of greenhouse gas (GHG) emissions. Optimizing resources and land use are an essential circularity principle. The objective of this article is to assess the extent to which land optimization can simultaneously reduce GHG emissions and increase production on dairy farms. In addition, we explore the potential reduction of GHG emissions under four different pathways. The empirical application combines the network Data Envelopment Analysis (DEA) with the by‐production approach. This study focuses on a representative sample of Dutch dairy farms over the period of 2010–2019. Our results suggest that farms can simultaneously increase production and reduce GHG emissions by both 5.1%. However, only 0.6% can be attributed to land optimization. The land optimization results show that on average 25.3% of total farm size should be allocated to cropland, which is 6.7% more than the actual land allocation. GHG emissions could be reduced by 11.79% without changing the level of inputs and outputs. This can be achieved by catching up with the mitigation practices of the best performing peers.

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Section: Introductionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Mitigating greenhouse gas emissions on Dutch dairy farms. An efficiency analysis incorporating the circularity principle.

Wang,

Ang,

Oude Lansink

2023

Agricultural Economics

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“…Following Färe et al . (), Ang and Kerstens () and Cherchye et al . (), the preceding intertemporal profit‐maximisation problem can also be adapted to programme (B) where land use L m is optimally reallocated among M crops for each farm

j \in {double-struckR}_{+}^{J}

r W {()(, p, w, K, c)}^{(2)} = \underset{(}{, y, x, I, L_{m}^{*}, γ)}{falsemax} \{p^{'} y - w^{'} x + W_{K} {()(.)}^{'} (I - δ K)\}

s.t .

y_{m} \leq {false\sum}_{j = 1}^{J} γ_{m}^{j} y_{m}^{j}, m = 1, \dots, M

{false\sum}_{j = 1}^{J} γ_{m}^{j} x^{j} \leq x_{n}, m = 1, \dots, M, n = 1, \dots, N

(I_{f} - δ_{f} K_{f}) \leq {false\sum}_{j = 1}^{J} γ_{m}^{j} (I_{f}^{j} - δ_{f} K_{f}^{j}), m = 1, \dots, M, f = 1, \dots, F

{false\sum}_{j = 1}^{J} γ_{m}^{j} G^{j} \leq G_{z}, m = 1, \dots, M, z = 1, \dots, Z

…”

Section: Methodsmentioning

confidence: 94%

On the Opportunity Cost of Crop Diversification

Ang¹,

Mortimer²,

Tiffin³

2018

J Agricultural Economics

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Distance functions are increasingly being augmented, with environmental goods treated as conventional outputs. A common approach to evaluate the opportunity cost of providing an environmental good is the exploitation of the distance function's dual relationship to the value function. This implies that the opportunity cost is assumed to be non-negative. This approach also requires a convex technology set. Focusing on crop diversification for a balanced sample of 44 cereal farms in the East of England for the years 2007-2013, this paper develops a novel opportunity cost measure that does not depend on these strong assumptions. We find that the opportunity cost of crop diversification is negative for most farms.

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“…The non-convex and convex approximations are deterministic and as a result sensitive to potential outliers that may determine the production frontier. Following Ang and Kerstens (2016) and Serra et al (2014) among others, we apply the super-efficiency approach of Banker and Chang (2006) as a robustness check. This involves the removal of the considered observation from the reference technology in the efficiency estimation.…”

Section: Em Pi R Ica L R E Su Ltsmentioning

confidence: 99%

Energy productivity and greenhouse gas emission intensity in Dutch dairy farms: A Hicks–Moorsteen by‐production approach under non‐convexity and convexity with equivalence results

Ang

Kerstens

Sadeghi

2022

J Agricultural Economics

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The agricultural sector is currently confronted with the challenge to reduce greenhouse gas (GHG) emissions, whilst maintaining or increasing production. Energy-saving technologies are often proposed as a partial solution, but the evidence on their ability to reduce GHG emissions remains mixed.Production economics provides methodological tools to analyse the nexus of agricultural production, energy use and GHG emissions. Convexity is predominantly maintained in agricultural production economics, despite various theoretical and empirical reasons to question it. Employing nonconvex and convex frontier frameworks, this contribution evaluates energy productivity change (the ratio of aggregate output change to energy use change) and GHG emission intensity change (the ratio of GHG emission change to polluting input change) using Hicks-Moorsteen productivity formulations. We consider GHG emissions as byproducts of the production process by using a multi-equation model. Given our empirical specification, nonconvex and convex Hicks-Moorsteen indices can coincide under certain circumstances, which leads to a series of theoretical equivalence results. The empirical application focuses on 1,510 observations of Dutch dairy farms for the period of 2010-2019. The results show a positive association between energy productivity change and GHG emission intensity change, which calls into question the potential of on-farm, energy-efficiency-increasing measures to reduce GHG emission intensity.

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To Mix or Specialise? A Coordination Productivity Indicator for English and Welsh farms

Cited by 5 publications

References 38 publications

Mitigating greenhouse gas emissions on Dutch dairy farms. An efficiency analysis incorporating the circularity principle.

Mitigating greenhouse gas emissions on Dutch dairy farms. An efficiency analysis incorporating the circularity principle.

On the Opportunity Cost of Crop Diversification

Energy productivity and greenhouse gas emission intensity in Dutch dairy farms: A Hicks–Moorsteen by‐production approach under non‐convexity and convexity with equivalence results

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