The National Bank of Romania (BNR) injected on Monday, in the banking market, 16.65 billion lei, through a 7-day repo operation, with an interest of 2.5 percent per annum, equal to the key interest. BNR also posted, in the first half of Monday, an average interest rate on deposits attracted (ROBID) for a day (overnight) of 2.49 pct per annum, down from Friday, 3.36 pct per annum, and for overnight deposits (ROBOR) the interest rate dropped to 2.81pct per annum, from the level of the previous session, of 3.66 pct per annum. The 3-month ROBOR index dipped on Friday to 3.34 percent per annum, from 3.38 percent per annum. At the beginning of the month, BNR also conducted one repo-type operation, through which it offered banks 9.7 billion lei. In September, BNR carried out three repo type operations, through which it offered the banks 16.9 billion lei. Repo operations are liquidity-providing reverse transactions whereby BNR buys eligible assets from credit institutions upon their commitment to repurchase the assets at the date and the price agreed on the date the transaction was concluded.