The European Central Bank will hire more than 500 new staff before it takes over banking supervision, ECB vice president Vitor Constancio said.
"I would say it would have to be slightly above 500, but not reaching 1,000," Mr Constancio said in an interview today.
"This has to be now fully analyzed in detail after the very recent decisions."
European Union finance ministers this week agreed to put the ECB in charge of all 6,000 euro-area lenders in a deal that paves the way for the currency bloc's firewall fund to provide direct bailouts to banks.
The new supervisor should be operationally ready by March 1, 2014, with 150 to 200 banks automatically overseen by the ECB and the others being moved under the auspices of the central bank if needed.
Until now, the ECB hasn't published estimates on how many people it might have to hire to fulfill its new obligations.
The legal framework that will underpin the central bank's new role is scheduled for completion by the end of February.
"The recruitment will have to be done mostly from the national authorities, meaning national supervisors or national central banks," Mr Constancio said, adding that the new hires will be employed by the ECB.
Asked whether the ECB may lower interest rates if economic conditions worsen, Mr Constancio said that "the risks are to the downside and if they materialize as they have done in the past, certainly we will think to adjust our policies to face what will be a different situation."
The ECB at its policy meeting last week lowered its economic outlook for the euro area and left interest rates unchanged at a record low of 0.75 per cent for the refinancing rate and zero percent for the deposit rate.
While the Governing Council "has analyzed" moving the deposit rate into negative territory, "we never pre-commit with these things," Mr Constancio said.
"We can do it, we are ready to do it, there is no operational problem, but that does not mean we are going necessarily to decide that," he said.
Bloomberg