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The 2009 economic evolutions have been strongly marked by the effects of the global crisis, and the connections generated by the economic globalization have also brought their impact on the emerging economies, such as that of Romania. The international commercial exchanges have shrunk abruptly, in the last quarter of 2008 and the in the first quarter of 2009, following the intensification of the financial crisis in September 2008, as well as the generated restriction of the economic activity at the global level. In this manuscript, the analysis of the companies business activity shall be...

Inspired by the domain of demography, reliability theory adopted and adapted the main indicator used there, namely the rate of mortality which is in fact the ratio between the number of deceased persons at the time and the number of survivors at the same moment. In a reliability framework, the mortality rate became hazard or failure rate where the persons (living beings) are replaced by objects (components, subassemblies and systems). The theory of reliability deals with all aspects of this process of failure, trying to construct formal or mathematical models for this random phenomenon. In a...