FOREX-Dollar, yen fall vs euro on US stimulus hope
* Dollar, yen slump vs euro on stimulus package hope
* Bleak jobs data fuels expectation Obama will act fast
* U.S. loses 598,000 jobs in January, worst in 34 years
* Improved risk appetite boosts high-yielders (Adds details, updates prices, changes byline)
http://uk.reuters.com/article/marketsNewsUS/idUKN0646351120090206