Central bank purge deepens doubts over Russia's "pocket bank" phenomenon

(Repeats Thursday item)

* Conglomerates founded pocket banks to fund their interests

* But tougher banking regulation making life harder

* Three such banks got into trouble in past three months

* Owners trying to quit banking but buyers scarce

* GRAPHIC - Russia's top banks http://tmsnrt.rs/2jXIz6m

By Katya Golubkova

MOSCOW, Sept 28 (Reuters) - The failure of two big Russian lenders within a month has cast doubt on how much longer a phenomenon of the post-Soviet financial system, the "pocket bank", can last.

The practice of conglomerates running their own banks grew out of the early days of Russian capitalism in the 1990s. But with authorities now purging a sector beset by bad debts, owners are trying to get rid of their remaining pocket banks and finding few willing buyers, if any.

Big businesses that emerged from the rubble of the Soviet Union set up these in-house banks to provide themselves with funding because the financial sector was so underdeveloped following seven decades of communism.

Today they make up only a handful of the top 50 Russian lenders by assets but some have extensive financial links with other banks. Where the authorities sense a risk to the wider financial system, they are stepping in.

Over the past month, the central bank has bailed out Otkritie Bank and B&N Bank, whose problems were at least partly linked to their being part of conglomerates.

A third bank, Yugra, which was part of a real estate-to-oil business empire and regarded as less of a systemic risk, had its licence withdrawn earlier this year. While savers were reimbursed by the central bank, its demise caused market concerns about the banking sector's stability.

A financial market source, who spoke on condition of anonymity, said the spate of banks in difficulties is "a systemic issue lingering from the past when owners were lending to their own business".

"The banking business itself is not profitable. It's like an avalanche which is waiting to happen: there is no movement, no one is buying assets," said the source.

REMNANT OF THE 90S

Nearly three decades after the emergence of pocket banks, it is becoming less beneficial for conglomerates to own them.

The lenders are saddled with bad debt that has been accumulating since the 2008 global economic crisis and the parent groups are in some cases struggling too. On top of this, the central bank has imposed more stringent rules on related party lending which cancel out many advantages of a pocket bank.

"There are different central bank requirements regarding additional provisions on related parties - this makes such a business model not so attractive from an economic point of view," Deputy Finance Minister Vladimir Kolychev told Reuters in an interview last week.