Conocer las diferencias de productividad y eficiencia entre la agricultura convencional y la ecológica tiene implicaciones importantes para la evaluación de la viabilidad económica de estas dos prácticas agrícolas. El principal objetivo de este estudio fue comparar la eficiencia técnica de las explotaciones de uva ecológicas y convencionales en Cataluña. Para ello utilizamos el modelo de la frontera de producción estocástica. El análisis se basó en datos de corte transversal de una muestra de 141 explotaciones catalanas especializadas en la producción de uva. Los agricultores ecológicos fueron, de promedio, técnicamente más eficientes que los convencionales (los ratios de eficiencia fueron 0,80 y 0,64, respectivamente). Además de la adopción de técnicas ecológicas, la experiencia también incrementa la eficiencia técnica. En cambio, las explotaciones con una mayor proporción de trabajo no remunerado, que se encuentran en una zona desfavorecida y/o que tienden a tener fuertes preferencias por preservar el medio ambiente, son generalmente menos eficientes.

Research Highlights: Recently, there has been a growing interest in the contribution of Non-Wood Forest Products (NWFPs) to livelihoods and food security among local populations in Tunisia. NWFPs have gained special attention given the relevance of this forest heritage to alleviate poverty and improve household economies. Background and Objectives: This study focuses on determining the contribution of Aleppo pine production to local household livelihood and food security in Tunisia (Siliana province). The relevance of this region as a leading Tunisian Aleppo pine producer makes the analysis especially interesting. Materials and Methods: Data were obtained using structured surveys distributed among rural household heads during the collection season. A logistic regression as well as food security indicators were calculated to evaluate the contribution of NWFPs to household livelihood. Results: Empirical findings support evidence that there is a significant difference between the alternative sources of revenues. The collection of Aleppo pine was significantly affected by gender, attending extension days and agricultural training program, distance to market, household size and livestock activity. Conclusions: Aleppo pine plays an important role in supporting rural livelihoods and provides an important safety net for the local population throughout the year.

Aim of study: To investigate the impact of adopting new feeding precision technology on pig production.Area of study: Four EU countries (Germany, France, Poland and Spain) during the period 2010–2015.Material and methods: The Färe-Primont index was used to estimate total factor productivity change and its components, technological change and efficiency change.Main results: German, French and Spanish farms experienced total factor productivity (TFP) progress, while Polish farms did not for both feeding strategies. Our empirical findings suggest a high impact on the productivity of ad libitum feeding technique compared to the restricted one for all countries.Research highlights: Precision feeding strategies provide another avenue to more sustainable livestock production and further evidence that implementing individual ad libitum feeding systems for pigs could enhance farm’s productivity.