Open market operation (OMO)
refers to the operations of the central bank in which the bank deals in the
sale and purchase of securities in the open market. Open market operation
(OMO) is a monetary policy by the central bank which controls the overall supply of the money in the economy.
By selling the securities, the central bank soaks
liquidity from the economy which controls the inflation in the economy by
decreasing the purchasing power of the people and by buying the securities, the
central bank releases liquidity which controls deflation in the economy by
increasing the purchasing power of the people.