The poster is devoted to studies in the framework of the Economic Growth Project at IIASA. The research deals with the interdisciplinary approach for constructing optimal trajectories of growth based on the analysis of real time-series. The background of the study is the following: - economic growth theory (Arrow, Solow, Shell); - optimal control theory (Pontryagin.s maximum principle for problems on infinite horizon); - econometric analysis of the model; - numerical simulation and forecasting of future scenarios.