Emvalomatis, Grigorios

By: Skevas, Ioannis; Zhu, Xueqin; Shestalova, Victoria; Emvalomatis, Grigorios
This study examines the impact of policies and intensification on the environmental performance of Dutch dairy farms in the period 2001–2010 using a hyperbolic distance function. The results indicate that the change from the Mineral Accounting System to the combination of the Application Standards Policy with decoupled payments has not significantly changed farms’ hyperbolic efficiency. Farms receiving agri-environmental and animal welfare payments are less hyperbolically efficient than those that do not, highlighting greater decreases in desirable outputs than decreases in undesirable outputs. Finally, intensification increases hyperbolic efficiency, suggesting that intensive practices may increase production without harming the environment.
By: Mamardashvili, Phatima; Emvalomatis, Grigorios; Jan, Pierrick
Better understanding the trade-offs/synergies between desirable and environmentally harmful (undesirable) farm outputs is relevant for future targeting and tailoring of agri-environmental policy measures. We use a hyperbolic distance function to represent the production technology employed by Swiss dairy farms in mountainous regions, thus allowing for simultaneous expansion of desirable outputs (milk and non-milk) and contraction of undesirable output (nitrogen surplus). We calculate the farm-specific shadow price of the undesirable output. The obtained shadow prices (mean value with respect to milk output was equal to 28 Swiss francs per kg of nitrogen) provide quantitative information on farmers’ costs of reducing nitrogen pollution.