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This article explores the complexities and opportunities of agricultural value chains from international, European, and Romanian perspectives. Highlighting the importance of efficient value chain management, the exploration examines first the situation at the global level in the countries with a high economic development: USA, China, Germany, Japan and India, as a reflection on how global and regional policies impact agricultural production and distribution. Market dynamics of raw materials and high tech products and services in terms of export, import and trade balance was analyzed in the EU in the interval 2012-2022, based on Eurostat data, emphasizing its role in shaping value chains. The European lens focuses on the Common Agricultural Policy (CAP) and its implications for member states. The Romanian context highlights local challenges and strategies for integrating into broader value chains. From a methodological point of view, there were used various methods and procedures among which the main ones have been: descriptive context of the literature, trend dynamics in raw materials and high tech-products and services in terms of regression equation and R square, fixed basis index for showing the growth rate on the studied period, comparison method, illustrations in tabulated results and suggestive graphics. By analyzing case studies and current trends, the current research provide insights for enhancing economic efficiency, sustainability, and competitiveness in the agricultural sectors. [ABSTRACT FROM AUTHOR]

The paper aims to present models of agricultural production optimization as tools for managers to increase yield, crop structure, crop rotation, increased efficiency and profitability. The two optimization models are: Case 1: Optimization of yield depending on wheat price and subsidy for increasing net return and profitability in wheat culture; Case 2: Optimal model for optimizing crop rotation in cereal culture with maximum income, having two solutions: (a) Basic optimal primal solution and (b) Basic optimal dual solution. The methodology included the calculations regarding the specific indicators reflecting the economic efficiency in wheat cropping for Case 1 and determination of the optimal primal and dual solutions assisted by SOLVER application from MS Excel for Case 2. The two examples come from vegetal farming but, other models of optimization could be developed in animal production for improving livestock structure by species and category and also in animal feeding setting up optimized feed ratios to sustain production. [ABSTRACT FROM AUTHOR]

The paper aims to identify the main aspects of digitalization in the EU and Romania at present, in general, and emphasizing on agriculture, because in this sector has a deep impact on infrastructure and work resources. The EU average for DESI index quantifying digital economy performance was compared with the index in the member states to show the differences in the performance of the digital economy. The aspects related to the impact of digitalization in agriculture from many points of view, but mainly on human resources have also been highlighted. Index scores differ from one country to another and reflect the performance result of the efforts that each member state has made to implement digital economy. The higher the index value, the higher the digital economy performance in that country. During the period 2017-2022, Finland, Denmark, the Netherlands and Sweden have maintained their top position in the EU, while Romania and Bulgaria are situated on the last places. Romania should be focused on the improvement of digital infrastructure, promotion of digital competences, innovation and entrepreneurship in order to increase its performance in digital economy. Major efforts should be done to improve connectivity, educational programmes in digital competences and to develop a favourable business environment for contributing to its digital transformation and integration into the EU digital unique market. [ABSTRACT FROM AUTHOR]