The author critically analyzes monetary policy pursued during the recent years by the Central Bank of Poland and poses a question whether the parliamentary bill on the National Bank of Poland correctly indicates its objectives. In particular, the issue whether the single objective, viz. the currency stability, is not too narrowly formulated? The article indicates that the open market policy in actual fact causes deep dis-equilibrium on the monetary market and identifies its effects which manifest themselves in high over-liquidity and shortage of loan potential as well as in the transfer abroad of sizeable funds in the form of foreign assets. The conclusion is that the stability of the currency, as the objective - from the macroeconomic point of view - was not rational, due to its high cost.