Introduction.- Applications of Methods and Algorithms of Nonlinear Dynamics in Economics and Finance. Abdol S. Soofi and Andreas Galka.- Kaldorian assumptions and endogenous fluctuations in the dynamic fixed-price IS-LM model. Giovanni Bella, Paolo Mattana, Beatrice Venturi.- Determining the relationship between Co-Creation and Innovation by Neural Network. Giacomo di Tollo, Stoyan Tanev, Kassis Mohamed Slim and Davide De March.- On the fractal characterization of a system for tradings on Eurozone stocks. Marina Resta.- Managing uncertainty in complex projects. Giancarlo Nota and Rossella Aiello.- On the Concept of Endogenous Volatility. Orlando Gomes.- Chaotic Order – The Economic Relativity. Ronald Dai.- The Strange Attractor of the Firm. Safieddine Bouali.- Interaction-Based approach to Economics and Finance. Mitja Steinbacher.- Why should Economics give Chaos Theory another chance? Victor A. Becker.- Disequilibrium Trade and the Dynamics of Stock Markets. Tönu Puu.