Ongoing global changes bring fundamentally new scientific problems requiring new concepts and tools. A key issue concerns a vast variety of practically irreducible uncertainties, which challenge our traditional models and require new concepts and analytical tools. The uncertainty critically...

A chaotic process with slow feed back : the case of business cycles / T(c)œnu Puu -- Nonlinear interactions in the economy / Erik Mosekilde, Jesper S. Thomsen, and John Sterman -- Fast and slow processes of economic evolution / (c)ke E. Andersson -- A stochastic model of technological evolution...