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This article describes a methodical framework that combines two specific methods of Lean management, namely the ABC method and the MRP planning method. The article further argues that combining the ABC inventory method with subsequent MRP planning is beneficial if the combination is implemented in practice. To demonstrate the benefits, the framework is tested using a case study company. The presented case-study problem is to reduce the number of changeover downtimes in the environment of an engineering production company. The researched company deals with the problem of setting up production lines in a way to minimize the number of downtimes within one work shift. Within the solution, four possible variants of the production plan are presented. By combining the ABC and MRP methods, up to four changeovers can be saved, which in financial terms represents a saving of about EUR 450,000 per year.

The paper deals with the application of individual simple and second generation indexes - Laspeyres price index (Ip), Laspeyres volume index (Iq). The individual statistical indexes compare parameters, namely the volume of harvested trees and the economic evaluation of forest management for the time periods 2015-2016, 2016-2017 and 2017-2018. Economic-statistical indexes are applied for economic evaluation of forest management. The subject of the paper is to demonstrate how the implementation of the Laspeyres price index (Ip), of the Laspeyres volume index (Iq) can help with forest management to obtain clear statistics on logging and the need to replace the original stand.

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