Fuzzy models in investment planning

When planning investments, the conditions for further business activities are not always reliably known in advance. Socio-political and natural factors can affect to amount of inflation, cost technical facilities technologies, profits. All these make studying fuzzy modeling investment very important. One methods under uncertainty is using L. Zadeh apparatus logic. The purpose study apply logic planning. task develop elementary S-shaped models that show influence different on decision invest. Previously, similar problems there were considered triangular or trapezoidal models, which defines novelty proposed study. As a result study, number normalized built (the simplest basic, with adjustment factors, debt obligations, delayed start implementation, additional revenues inflation), clearly individual influencing invest (available funds growth, annual receipts funds, development production technologies). An example defuzzification given basic diagram. above be used as basis building more complex take into account combinations factors.