The aim of this paper is to determine the influence of the Common Agricultural Policy’s (CAP) subsidies on the level of economic sustainability of farms by means of three-fold study. To determine the economic sustainability of farms the authors applied the income gap ratio. Next, the level of income differentiation between farms of various economic classes was established. The last part consisted of the recognition of statistically significant CAP schemes that shape agricultural income in farms of different size and in assessing how the respective subsidies should increase or decrease to fill the recognized gap, based on the coefficients of panel regression. The spatial scope covered all EU countries in 2005–2015. Results show that due to the CAP’s support the average income of farms has approached the average non-agricultural income, but distribution of this support favored the largest farms, increasing disparities within the sector.

Abstract. Th e study evaluated the importance of agricultural production structures for economic effi ciency and environmental sustainability of farms. For this purpose, multivariate methods were used: ordering and data envelopment analysis (DEA). Th e study is based on accounting data from the farms of intensive agriculture in Wielkopolska Province, collected by the Institute of Agricultural and Food Economics in Warsaw in [2004][2005][2006][2007][2008][2009]. It was demonstrated that diversifi ed farms achieve similar economic effi ciency indicators as specialized farms. At the same time it was proven that the farms with production specializing in breeding cattle, implement their function of "guardians of the countryside" in the same degree or even better. Th us, the main hypothesis of the study formulated on the basis of studying literature was rejected. It said that: specialized farms achieve higher economic effi ciency with lower environmental sustainability of the production than diversifi ed farms. In the diversifi ed farms there is higher environmental sustainability of production at lower economic effi ciency than in specialized farms.

Facing enormous differences in factor endowments across European agriculture the aim of the study was to identify the significance of differences in land, capital and labour endowments on the efficiency of different agricultural production types in the EU. The Ward Cluster Analysis was used to distinguish groups of EU regions, significantly differing in factor endowment, DEA model to determine the relative differences in technical efficiency of different types of agricultural production in EU regions and ANOVA analysis to assess the significance of differences in the efficiency of agricultural production types between these EU regions. It was found that generally the agriculture of the EU-12 regions was characterised in 2015 by higher efficiency of transforming inputs into effects than households in the EU-15 regions. Therefore, factor endowments play a significant role in transformation of production factors into effects. The article shows that there is a diversity of factor endowments in agriculture between EU region groups, which translates into differences in the technical efficiency of agricultural holdings of various types of production.

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Sustainable development plays an important role in shaping conditions for economic growth, social development and care for the natural environment. The issue was also noticed at the level of the European Union, which is expressed among others by creating sectoral policies, including the Common Agricultural Policy. The aim of the article is to determine the influence of the Common Agricultural Policy on the level of socio-economic sustainability of farms in Poland. The authors formulate a hypothesis that the existing solutions serve the achievement of economic sustainability, determined by the agricultural to non-agricultural income ratio, but they do not provide sustainability of farms in terms of the social element understood as taking income disparities into consideration. In the article, panel regression and the ratio of income from representative FADN farms to average annual gross salary per employee in Poland in the years 2004–2017 were used. It was found that thanks to the support from the Common Agricultural Policy, the average income of farms comes close to the average income of the non-agricultural sector. However, the influence of the subsidies on changes in economic sustainability was uneven in various economic size classes of farms—the strongest farms benefited the most, which means that social sustainability in terms of equal distribution of income was not achieved.