Greece and Ireland are among countries in an “intolerable” economic situation, which may lead to bailouts or even an exit from the euro area by the end of next year, according to Standard Bank Plc.

The absence of a mechanism to permit so-called fiscal transfers within the 16-nation region may undermine the exchange-rate system, said Steve Barrow, head of Group of 10 foreign-exchange strategy at the bank in London. Concern some nations will need to be rescued may drive the premium investors demand to hold 10-year Greek debt instead of benchmark German bunds to 400 basis points next year, from 214 basis points today, he said. The Irish premium may also jump, he said.

“Countries like Ireland and Greece may not be able to grow out of the current crisis,” Barrow said in a telephone interview today. “With interest-rate cuts, exchange-rate depreciation and significant fiscal support all off limits for these countries, bailouts or …