240 likes | 384 Views
Efficiency Analysis of organic farming systems An Overview on Joint Topics, Results and Conclusions. Presentation at the Vadym Hetman Kyiv National economic University Sebastian Lakner & Stephan von Cramon- Taubadel November 11, 2011. Introduction: Organic Farming in Germany Methods
E N D
Efficiency Analysis of organic farming systemsAn Overview on Joint Topics, Results and Conclusions Presentation at the Vadym Hetman Kyiv National economic University Sebastian Lakner & Stephan von Cramon-TaubadelNovember 11, 2011
Introduction: Organic Farming in Germany • Methods • Overview on empirical results 3.1 Studies focussing on organic farming 3.2 Comparative studies 3.3 Joint topics and results, shortcomings • Summary and Conclusions Efficiency of organic farms - Lakner & von Cramon-Taubadel Outline
Efficiency of organic farms - Lakner & von Cramon-Taubadel 1. Introduction: Organic Associations and the state Farmers Associations for organic farming Government-Signs for organic farming Germany European Union
Efficiency of organic farms - Lakner & von Cramon-Taubadel 1. Introduction: Wheat prices Figure 2: Producer Prices of Conv. and Organic Soft WheatSources: ZMP [a]; ZMP [b]; ZMP [c]; AMI (2010a, 2010b, 2011a, 2011b).
Efficiency of organic farms - Lakner & von Cramon-Taubadel 1. Introduction: Grain Yields (dt/ha) Figure 5: Wheat-Yields in Organic and Conv. Farms in GermanySource: own calculation, data from the Federal Ministry of Food, Agriculture and Consumer Protection
Figure 7:Production function and production frontierSource:Cantner et al. 2007: p.5 Efficiency of organic farms - Lakner & von Cramon-Taubadel 2. Methods: Data Envelopement Analysis Output Output-oriented C Input-oriented B technology Input
Efficiency of organic farms - Lakner & von Cramon-Taubadel 2. Methods: Stochastic Frontier Analysis Output Stochastic Production Frontier y = f (x; beta) * exp{v-u} maximal feasible output Stochastic-term:exp {v} Inefficiency-term: exp{- u} Observed farm n Input Figure 8: The Stochastic and inefficiency term in the modelSource: Own elaboration according to COELLI et al. 2005: p. 244
Labour’s impact on organic farms Arable farms > mixed farms > grassland farms The scale level is not always optimal Optimal specialization Regional distribution Efficiency during the period of conversion The organic subsidy has a negative impact on efficiency Efficiency of organic farms - Lakner & von Cramon-Taubadel 3.1 Studies focussing on organic farming
Figure 9: Technical efficiency in 15 regional cluster of organic farmingSource: own calculations
Organic farming is less productive, Mixed evidence with efficiency Often separate estimation in DEA The choice of farm-system? Efficiency of organic farms - Lakner & von Cramon-Taubadel 3.2 Comparative studies
Environmental objectives of organic farming • Farm-structure of organic vs. conventional • Sample-selection techniques (the Heckman model) • Matching techniques • Balance of observation in the data-set • Optimal level of specialization • Methodological issues Efficiency of organic farms - Lakner & von Cramon-Taubadel 3.3 Joint topics and results, shortcomings
Efficiency of organic farms - Lakner & von Cramon-Taubadel Environmental objectives of organic farming Figure 12: Technical and Environmental Efficiency in BavariaSource:own elaboration based on the results of Kantelhardt et al. 2009
Organic farming is less productive • Mixed evidence with efficiency • Sampling issues • Balance in the sample • Structural issues • Little discussion on topics specific to organic • Conversion to organic farming • Environmental efficiency • Little data on economic and environmental variables Efficiency of organic farms - Lakner & von Cramon-Taubadel 4. Summary and Conclusions
Georg-August Universität Göttingen Thank you for your attention!
Efficiency of organic farms - Lakner & von Cramon-Taubadel 1. Introduction: History of organic farming 1990s – 2000s Demeter Bioland, Naturland Gäa EU-Bio Ecological Farming AGÖL, BÖLW East-Germany ? 1980s • ‘Organic-biological farming’ • Müller & Rusch 1950s - 1970s • ‘Bio-dynamic farming’ • ‚biological farming‘ 1920s – 1930s • Rudolf Steiner 1924 ‚Natural farming‘ Source: own elaboration, see also Vogt 2000, p.19
Efficiency of organic farms - Lakner & von Cramon-Taubadel Retailing in theorganicmarket Figure 10: Shares of sales channels in the German market for organic foodSource: Authors’ elaboration, data from IÖW (2007), Rippin and Hamm (2007), AMI (2011)1: Farmers on weekly markets and farm-shops; including delivery-services from farmers. 2: Including Special Fruit and Vegetable stores.3: Including drugstores, petrol-stations and other delivery services.
Efficiency of organic farms - Lakner & von Cramon-Taubadel Farm-sizes in of German Farms
Efficiency of organic farms - Lakner & von Cramon-Taubadel Figure 4:Regional concentration of organic farms in Germany in 2007Source: Regional Database 2007 and 2005 from the German Federal Statistical Office (Destatis 2006)
The world of organic farming in 2007: share of land Efficiency of organic farms - Lakner & von Cramon-Taubadel The organic market worldwide
Efficiency of organic farms - Lakner & von Cramon-Taubadel Table 1: Premium for organic grassland-farming in Germany Quelle:Eigene Recherche, Nieberg & Kuhnert 2006
Figure 6:Production function and production frontierSource:Cantner et al. 2007: p.5 Efficiency of organic farms - Lakner & von Cramon-Taubadel 2. Methods: Efficiency Analysis Output „Optimal practice“ C Production-“frontier“ „Best practice“ B Production function „actual practice“ technology Input
Efficiency of organic farms - Lakner & von Cramon-Taubadel Used model approaches
Efficiency of organic farms - Lakner & von Cramon-Taubadel Figure 10: Technical efficiency of organic farms during and after the conversion periodSource: own calculations
Efficiency of organic farms - Lakner & von Cramon-Taubadel 1. Introduction: Milk-Yields on organic farms Figure 5: Milk-Yields in Organic and Conventional Farms in GermanySource: own calculation, data from the Federal Ministry of Food, Agriculture and Consumer Protection