Format du dépôt |
Fichier |
Type de dépôt |
Pré-publication, Document de travail |
Titre |
en
Diffusion of soil pollution in an agricultural economy. The emergence of regions, frontiers and spatial patterns
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Résumé |
en
The Status of the World's Soil Resources Report identi_ed in 2015 soil pollution as a major threat to all the services provided by soils (FAO and ITPS, 2015). This paper develops a spatial growth model for an agricultural economy where pollution di_uses in the soil. In order to produce, the economy needs fertile soil, which is naturally bounded by the amount of available land. Although production entails pollution, locations can protect their soil investing in abatement. Once a location reaches its maximum of fer- tile land, the economy is split into a fertile region and a polluted region, separated by a dynamic frontier which follows the spatial evolution of pollution. After providing the optimal trajectories for consumption and fertile land, we prove that heterogenous steady states can emerge even in homogeneous economies, and that a polluted region can stag- nate forever in an environmental poverty trap. Our results are numerically illustrated, including examples of the economy's resilience to pollution shocks.
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Auteur(s)
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Carmen Camacho
1, 2
, Alexandre Cornet
3
1
PJSE -
Paris Jourdan Sciences Economiques
( 578027 )
- 48 boulevard Jourdan 75014 Paris
- France
-
Université Paris 1 Panthéon-Sorbonne UMR8545 ( 7550 )
;
-
École normale supérieure - Paris ( 59704 )
;
-
Université Paris Sciences et Lettres ( 564132 )
;
-
École des hautes études en sciences sociales ( 99539 )
;
-
École des Ponts ParisTech ( 301545 )
;
-
Centre National de la Recherche Scientifique ( 441569 )
;
-
Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement UMR1393 ( 577435 )
2
PSE -
Paris School of Economics
( 301309 )
- 48 boulevard Jourdan 75014 Paris
- France
-
Université Paris 1 Panthéon-Sorbonne ( 7550 )
;
-
École normale supérieure - Paris ( 59704 )
;
-
Université Paris Sciences et Lettres ( 564132 )
;
-
École des hautes études en sciences sociales ( 99539 )
;
-
École des Ponts ParisTech ( 301545 )
;
-
Centre National de la Recherche Scientifique ( 441569 )
;
-
Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement ( 577435 )
3
UP1 -
Université Paris 1 Panthéon-Sorbonne
( 7550 )
- 12 place du Panthéon, 75231 Paris Cedex 05
- France
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Langue du document |
Anglais
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Date de production/écriture |
2021-03
|
Public visé |
Scientifique
|
Domaine(s) |
-
Sciences de l'Homme et Société/Economies et finances
|
Mots-clés (JEL) |
-
C - Mathematical and Quantitative Methods/C.C6 - Mathematical Methods • Programming Models • Mathematical and Simulation Modeling/C.C6.C61 - Optimization Techniques • Programming Models • Dynamic Analysis
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O - Economic Development, Innovation, Technological Change, and Growth/O.O4 - Economic Growth and Aggregate Productivity/O.O4.O44 - Environment and Growth
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Q - Agricultural and Natural Resource Economics • Environmental and Ecological Economics/Q.Q1 - Agriculture/Q.Q1.Q15 - Land Ownership and Tenure • Land Reform • Land Use • Irrigation • Agriculture and Environment
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Q - Agricultural and Natural Resource Economics • Environmental and Ecological Economics/Q.Q5 - Environmental Economics/Q.Q5.Q56 - Environment and Development • Environment and Trade • Sustainability • Environmental Accounts and Accounting • Environmental Equity • Population Growth
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R - Urban, Rural, Regional, Real Estate, and Transportation Economics/R.R1 - General Regional Economics/R.R1.R11 - Regional Economic Activity: Growth, Development, Environmental Issues, and Changes
|
Référence interne |
-
PSE Working Papers n°2020-31
|
Mots-clés |
en
Spatial dynamics, Ramsey model, Soil Pollution, Partial differential equations, Dynamic programming, Optimal Control, Spatial growth, Diffusion, Frontier, Optimal Control Spatial growth, Optimal Control C61, O44, Q15, Q56, R11
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