出版社：Publishing House of the University of Economics in Katowice
摘要：Dynamics of productive systems development* at the time of their management in the era of turbulence is a very actual issue. Let us try to look at the dynamics of productive system development issue from historical point of view. Approximately forty years ago Prof. F. Valenta entered into the awareness of academic community by introduction of his concept of innovation theory. This longitudinal study included analysis of many theoretical sources and interpretation of statistical data from entrepreneurial practice. In his last publications he generalised up-to-date world knowledge with regard to his previous scholar work1 . His outstanding contribution lies foremost in the application of business cycles and innovation theory within entrepreneurial practice and entrepreneurship theory. This course of theoretical thoughts arises from presumption of particular natural 'cyclic’ order of a productive system,i.e. enterprise. Schumpeterian Business Cycles graphs (1939),Junglar investment,i.e. crisis cycle waves (1860),Kitchin wave (1920s’),Kondratiev K-waves (1926) or Wardwell wave (1927) are common to academic community. Lengths of economic waves vary from three year (Kitchin),through ten year (Schumpeter),to twenty-five year (Wardwell) or even fifty year (Kondratiev) waves. Three-month innovation cycles can be currently observed in semiconductor industry2 .
