ZURICH, March 20 Reuters Credit Suisse and UBS could benefit from more than 260 billion Swiss francs 280 billion in state and central bank support, a third of the country39;s gross domestic product, as part of their merger to buffer Switzerland against global financial turmoil, documents outlining the deal show.

Swiss authorities announced on Sunday that UBS had agreed to buy rival Swiss bank Credit Suisse in a shotgun merger aimed at avoiding more marketshaking turmoil in global banking.

UBS said it will pay 3.2 billion for the 167yearold flagship while the government said UBS would also take on the first 5.4 billion in losses from unwinding derivatives and other risky assets.

The deal, however, involves a large amount of public support, with three tranches of liquidity and loans, as well as a pledge from the Swiss government to absorb up to 9 billion francs in potential losses from the takeover.

The total of 259 billion francs of support is equivalent to a third of Switzerland39;s entire economic output, which stood at 771 billion francs last year.

The government39;s going to have to say to voters why they are putting citizens39; money, taxpayer money at risk to bail out a bank that was predominantly servicing the ultra wealthy, doing some pretty extraordinary things with its investment bank and paying people crazy amounts of money relative to what the man in the street gets paid, one former global bank CEO, who did not wish to be identified, told Reuters.

In a…