Clicca qui per scaricare

Crop-diversity and Cereal Production under the CAP Reform: Evidence from Italy
Autori/Curatori: Elisa Gatto, Guido Signorino 
Anno di pubblicazione:  2014 Fascicolo: 3  Lingua: Inglese 
Numero pagine:  16 P. 35-50 Dimensione file:  5267 KB
DOI:  10.3280/SCRE2014-003002
Il DOI è il codice a barre della proprietà intellettuale: per saperne di più:  clicca qui   qui 

The paper offers empirical evidence on the relationship between inter-species diversity and production within a panel of agricultural firms operating in the cereal sector over the period 2004-2007. A Cobb-Douglas agricultural production function is estimated using different panel estimation methods which make it possible to control for the dynamic structure of agricultural production and for regressors’ endogeneity. We find evidence of a significant relationship between biodiversity and production, confirming the stability-diversity hypothesis. Additionally, the analysis supports the effectiveness of the new CAP intervention measures in sustaining farmers’ revenues.

L’articolo offre un contributo empirico sul rapporto tra biodiversità e produzione in un panel di aziende cerealicole. A tal fine, si procede alla stima di una funzione di produzione di tipo Cobb-Douglas attraverso due differenti metodi di stima che consentono di modellare la struttura dinamica della produzione e la natura endogena di alcune delle variabili osservate. Le stime offrono evidenza dell’esistenza di una relazione significativa tra biodiversità e produzione nel campione osservato, a conferma dell’ipotesi del ruolo stabilizzatore della biodiversità in ambito produttivo. L’analisi offre inoltre evidenza circa l’efficacia del nuovo sistema di intervento a sostegno dei redditi in agricoltura.
Keywords: Biodiversità, PAC, panel dinamici. Classificazione
Jel Code: Q18, Q57, Q58.

  1. Blundell R., Bond S. (1998), Initial Conditions and Moment Restrictions in Dynamic Panel Data Models. Journal of Econometrics, 87, 1: 115-143., DOI: 10.1016/S0304-4076(98)00009-8
  2. Altieri M. (1999), The Ecological Role of Biodiversity in Agroecosystems. Agriculture, Ecosystems and Environment, 74, 1-3: 19-31., DOI: 10.1016/S0167-8809(99)00028-6
  3. Arellano M. (2003), Panel Data Econometrics. New York: Oxford University Press., DOI: 10.1093/0199245282.001.0001
  4. Arellano M., Bond S. (1991), Some Tests of Specification for Panel Data: Monte Carlo Evidence and An Application to Employment Equations. Review of Economic Studies, 58, 2: 277-297., DOI: 10.2307/2297968
  5. Baltagi B. (2008), Econometric Analysis of Panel Data. New York: John Wiley & Sons.
  6. Bhaskar A., Beghin John C. (2009), How Coupled are Decoupled Farm Payments? A Review of the Evidence. Journal of Agricultural and Resource Economics 34, 1: 130-153.
  7. Bäumgartner S., Quaas M. (2010), Managing Increasing Environmental Risks through Agrobiodiversity and Agrienvironmental Policies. Agricultural Economics, 41, 5: 483-496., DOI: 10.1111/j.1574-0862.2010.00460.x
  8. Beck N., Katz J. (1996), Nuisance vs. Substance: Specifying and Estimating Timeseries Cross-section Models. Political Analysis, 6, 1: 1-36., DOI: 10.1093/pan/6.1.1
  9. Bradshaw B. (2004), Plus c’est la même chose? Questioning crop diversification as a response to agricultural deregulation in Saskatchewan, Canada. Journal of Rural Studies, 20, 1: 35-48., DOI: 10.1016/S0743-0167(03)00033-0
  10. Brock W., Xepapadeas A. (2003), Valuing Biodiversity from an Economic Perspective: a Unified Economic, Ecological, and Genetic Approach. American Economic Review, 93, 5: 1597-1614., DOI: 10.1257/000282803322655464
  11. Bun M., Kiviet J. (2003), On the Diminishing Returns of Higher Order Terms in Asymptotic Expansions of Bias. Economics Letters, 79, 2: 145-152., DOI: 10.1016/S0165-1765(02)00299-9
  12. Capitanio F., Gatto E., Marino A., Millemaci E., Signorino G. (2013), Spatial Diversity in Cereal Crops. What Do We Learn from CAP Reforms? A Farm-Level Analysis. Paper presented at the 53rd ERSA Congress Regional Integration: Europe, the Mediterranean and the World Economy, held in Palermo, Italy, August.
  13. Ciaian P., Swinnen J. F. M. (2009), Credit Market Imperfections and the Distribution of Policy Rents. American Journal of Agricultural Economics, 91, 4: 1124-1139., DOI: 10.1111/j.1467-8276.2009.01311.x.CisilinoF.,DeVivoC.,HenkeR.,PupoD’AndreaM.R.,VanniF.(2012),TheEffectsofDecouplingontheCOPSectorinItaly:AnEx-postPerformanceAnalysis,PoliticaAgricolaInternazionale–InternationalAgriculturalPolicy,2:47-63
  14. Chavas J. P., Kliebenstein J., Crenshaw T. D. (1985), Modeling Dynamic Agricultural Production Response: The Case of Swine Production. American Journal of Agricultural Economics, 67, 3: 636-645., DOI: 10.2307/1241087
  15. Daily G. C., Dasgupta S. (2001), Concept on Ecosystem Services. In: Levin S., Daily G.
  16. C., Colwell R. K., Lubchenco J., Mooney H. A., Schulze E. D., Tilman D. (eds.), The Encyclopedia of Biodiversity, Vol. 2. New York: Elsevier. 353-362., DOI: 10.1016/B0-12-226865-2/00091-2
  17. Di Falco S., Chavas J. P. (2007), Farmer Management of Production Risk on Degraded Lands: The Role of Wheat Variety Diversity in the Tigray Region, Ethiopia. Agricultural Economics, 36, 2: 147-156., DOI: 10.1111/j.1574-0862.2007.00194.x
  18. Di Falco S., Chavas J. P. (2008), Rainfall Shocks, Crop Biodiversity, and Agroecosystem Productivity. Land Economics, 84, 1: 83-96., DOI: 10.3368/le.84.1.83
  19. Di Falco S., Chavas J. P. (2009), On Crop Biodiversity, Risk Exposure, and Food Security in the Highlands of Ethiopia. American Journal of Agricultural Economics, 91, 3: 599-611., DOI: 10.1111/j.1467-8276.2009.01265.x
  20. Di Falco S., Perrings C. (2003), Crop Genetic Diversity, Productivity and Stability of Agroecosystems. A Theoretical and Empirical Investigation. Scottish Journal of Political Economy, 50, 2: 207-216., DOI: 10.1111/1467-9485.5002006
  21. Di Falco S., Perrings C. (2005), Crop Biodiversity, Risk Management and the Implications of Agricultural Assistance. Ecological Economics, 55, 4: 459-466., DOI: 10.1016/j.ecolecon.2004.12.005
  22. Eberhardt M., Helmers C. (2010), Untested Assumptions and Data Slicing: A Critical Review of Firm-level Production Function Estimators. Oxford: Oxford University, Department of Economics. Discussion Paper Series n. 513.
  23. Fridley J. D. (2003), Diversity Effects on Production in Different Light and Fertility Environments: An Experiment with Communities of Annual Plants. Journal of Ecology, 91, 3: 396-406., DOI: 10.1046/j.1365-2745.2003.00775.x
  24. Fragoso R., Marques C., Lucas M. R., Martins M. B. (2011), The Economic Effects of Common Agricultural Policy on Mediterranean Montado/Dehesa Ecosystem. Journal of Policy Modeling, 33, 2: 311-327., DOI: 10.1016/j.jpolmod.2010.12.007
  25. Goodwin B. K., Mishra A. K. (2005), Another Look at Decoupling: Additional Evidence on the Production Effects Of Direct Payments. American Journal of Agricultural Economics, 87, 5: 1200-1210., DOI: 10.1111/j.1467-8276.2005.00808.x
  26. Griliches Z., Mairesse J. (1995), Production Functions: The Search for Identification. Cambridge, MA: National Bureau of Economic Research, NBER Working Paper n. 5067.
  27. Hardaker B., Huirne R. B. M., Anderson J. R., Lien G. (2004), Coping With Risk in Agriculture. Wallingford, UK: CABI Publishing., DOI: 10.1079/9780851998312.0000
  28. Hooper D., Vitousek P. (1997), The Effects of Plants Composition and Diversity on Ecosystem Processes. Science, 277, 5330: 1302-1305., DOI: 10.1126/science.277.5330.1302.Istat(variousyears),Annuariodell’agricolturaitaliana.Roma:Istat
  29. Istat (2008), Il valore della moneta in Italia dal 1861 al 2007. Roma: Istat.
  30. Key N., Lubowski R. N., Roberts M. J. (2005), Farm-level Production Effects from Participation in Government Commodity Programs: Did the 1996 Federal Agricultural Improvement and Reform Act Make a Difference? American Journal of Agricultural Economics, 87, 5: 1211-1219., DOI: 10.1111/j.1467-8276.2005.00809.x
  31. Knutson R. D., Smith E. G., Anderson D. P., Richardson J. W. (1998), Southern Farmers’ Exposure to Income Risk Under the 1996 Farm Bill. Journal of Agricultural and Applied Economics, 30, 1: 35-46.
  32. Lagerkvist C. J. (2005), Agricultural Policy Uncertainty and Farm Level Adjustments: The Case of Direct Payments and Incentives for Farmland Investment. European Review of Agricultural Economics, 32, 1: 1-23., DOI: 10.1093/erae/jbi005
  33. MEA - Millenium Ecosystem Assessment – (2005), Ecosystems and Human Well-being: Biodiversi ty Synthesis. Washington: World Resource Institute.
  34. Moonen A.C., Bàrberi P. (2008), Functional Biodiversity: An Agro-ecosystem
  35. Approach. Agriculture, Ecosystems and Environment, 127, 1-2: 7-21., DOI: 10.1016/j.agee.2008.02.013
  36. Morduch J. (1995), Income Smoothing and Consumption Smoothing. The Journal of Economic Perspectives, 9, 3: 103-114., DOI: 10.1257/jep.9.3.103
  37. Moro D., Sckokai P. (1999), Modeling the CAP Arable Crop Regime in Italy: Degree of Decoupleing and Impact of Agenda 2000. Cahiers d’économie et sociologie rurales, 53: 50-73.
  38. Sckokai P., Moro D. (2006), Modeling the Reforms of the Common Agricultural Policy under uncertainty. American Journal of Agricultural Economics, 88, 1: 43-56., DOI: 10.1111/j.1467-8276.2006.00857.x
  39. Nickell S. (1981), Biases in Dynamic Models with Fixed Effects. Econometrica, 49, 6: 1417-1426., DOI: 10.2307/1911408
  40. Nunes P., Nijkamp P. (2010), Sustainable Biodiversity: Evaluation Lessons from Past Economic Research. Regional Science Inquiry Journal, II, 2: 13-46.
  41. OECD (2004), Analysis of the 2003 CAP Reform. Paris: OECD.
  42. Pascual U., Perrings C. (2007), Developing Incentives and Economic Mechanisms for in situ Biodiversity Conservation in Agricultural Landscapes. Agriculture, Ecosystems and Environment, 121, 3: 256-268., DOI: 10.1016/j.agee.2006.12.025
  43. Smale M., Hartell J., Heisey P. W., Senauer B. (1998), The Contribution of Genetic Resources and Diversity to Wheat Production in the Punjab of Pakistan. American Journal of Agricultural Economics, 80, 3: 482-493., DOI: 10.2307/1244551
  44. Sumner D. R., Doupnik B., Boosalis M. G. (1981), Effects of Tillage and Multicropping on Plant Diseases. Annual Review of Phytopathology, 19: 167-187., DOI: 10.1146/
  45. Tilman D., Wedin D., Knops J. (1996), Productivity and Sustainability I nfluenced by Biodiversity in Grassland Ecosystems. Nature, 379: 718-720., DOI: 10.1038/379718a0
  46. United Nations (1992), Convention on Biological Diversity (CBD). New York: UN. Widawsky D., Rozelle S. (1998), Varietal Diversity and Yield Variability in Chinese Rice Production. In: Smale M. (eds.), Farmers, Gene Banks and Crop Breeding. Dordrecht: Kluwer Academic Publishers.
  47. Wooldridge J. M. (2002), Econometric Analysis of Cross-Section and Panel Data. London: The MIT Press.

  1. Impossibile comunicare con Crossref: The request was aborted: Could not create SSL/TLS secure channel.

Elisa Gatto, Guido Signorino, Biodiversità e produzione cerealicola alla luce della riforma della PAC: il caso italiano in "SCIENZE REGIONALI " 3/2014, pp. 35-50, DOI:10.3280/SCRE2014-003002


FrancoAngeli è membro della Publishers International Linking Association associazione indipendente e no profit per facilitare l'accesso degli studiosi ai contenuti digitali nelle pubblicazioni professionali e scientifiche