Open Market operations refer to the Federal reserve's buying and selling of U.S. Government Treasury securities (Treasury Note and Bonds). By buying T-bills and bonds, the Fed purchases them with Federal Reserve Notes, or supplies more banking reserves to the network. By selling T-bills or bonds, the Fed drains excessive (or inflationary) banking reserves from the network.
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Open Market operations refer to the Federal reserve's buying and selling of U.S. Government Treasury securities (Treasury Note and Bonds). By purchasing T-bills and bonds, the Fed purchases them with Federal Reserve Notes, or supplies more banking reserves to the network. By selling T-bills or bonds, the Fed drains excessive (or inflationary) banking reserves from the network. In this way the Fed attempts to control the money supply.