The rapidly changing conditions of the economic environment require from companies more flexibility and adaptability. Ensuring liquidity is becoming a more and more important task. The deficit of cash and its implication resulted in increasing the role of efficient cash management. Cash resources constitute of the most liquid component of the company's assets. At the same time, it is an asset that does not bring income if left in a bank account but creates relatively high opportunity costs. At the same time, the efficient operation of a company is impossible without having a sufficient level of cash. The growing opportunities cost, related to the need to maintaining an adequate level of cash, will force managers to look for tools that...