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Efficiency improvement is important for increasing the competitiveness of any sector and the same is essential for the forestry sector. A non-parametric approach – Data Envelopment Analysis (DEA) was used for the assessment of forestry efficiency. The paper presents the results of the efficiency evaluation of forestry in European countries using DEA. One basic and two modified models (labourandwood sale) were proposed, based on available input and output data from Integrated Environmental and Economic Accounts for Forests and specific conditions of forestry also. The sample size was 22 countries and the data for 2005–2008 was processed. Obtained results show average efficiency in the range of 69 – 90% (depending on the model). Based on the results of the analysis following can be concluded: Slovak forestry achieved under average efficiency in comparison to other European countries, there were great differences in efficiency among individual countries; state of economy (advanced countries and countries with economy in transition) and region did not influence the efficiency statistically significant.

The thesis is focused on assessment of lean manufacturing methods, which are used in real company. The lean methods assessment is based on inventory management analysis in manufacturing company, which has these methods implemented. The thesis is divided into two main parts. Theoretical part maps the history of lean manufacturing, describes methods from which the concept consists of and compares approaches to lean methods analysis. Practical part of the thesis describes analysed company and lean methods, which are in the company implemented. In following part is presented analysis and the results, together with improvement proposal and own opinion regarding findings. The end of thesis summarizes results.