* Yen sells off on higher demand for overseas assets
* Better-than-expected data supports dollar vs yen
* Dollar down vs euro as risk appetite rises
* Deficit worries still nipping at dollar (Updates prices, adds detail, comment, changes byline)
By Steven C. Johnson
NEW YORK, May 28 (Reuters) - The Japanese yen fell broadly on Thursday as a spike in U.S. bond yields and surprisingly strong U.S. economic data attracted Japanese investors into overseas assets.
The dollar also remained under pressure against the euro as strong U.S. durable goods data reduced the need to hold it as a safe haven and worries about a soaring U.S. deficit left some worried that the Federal Reserve would step up debt purchases.
For story on U.S. economic data see [
].Yields on 10-year U.S. government bonds have jumped more than half a percentage point in the last two weeks, driven in part by worries about the ever-expanding amount of debt needed to fund a record $1.8 trillion U.S. budget deficit.
"There's a clear move out of the yen but the buying is not only concentrated in U.S. dollars," said Win Thin, currency strategist at Brown Brothers Harriman in New York. "Other currencies such as the Australian dollar and some of the large emerging markets are being favored as well."
U.S. 10-year Treasuries now yield around 3.7 percent <US10YT=RR> against 1.5 percent for the Japanese equivalent <JP10YT=RR>.
The dollar was last up 1.6 percent at 96.84 yen <JPY=>, its highest in more than two weeks. It hit a two-month low at 93.85 yen last week. The euro soared 2.5 percent to 135.11 yen <EURJPY=R>, according to Reuters data.
The euro rose 0.9 percent to $1.3954 <EUR=>, near the upper end of a $1.3795-$1.3982 daily range, while sterling fell 0.2 percent to $1.5918 <GBP=>.
Data from the Ministry of Finance showed Japanese investors returned from the Golden Week holidays and bought foreign bonds last week. Retail investors poured $2.4 billion into mutual funds on Wednesday, in the biggest single-day of fund launches this year, industry sources told Reuters. [
]Large flows of Japanese money into funds investing in overseas shares and U.S. junk bonds may have added to selling pressure on the yen against the dollar, currency dealers said.
"There is definitely a lot of money on the sidelines that needs to be deployed back into global markets, and a lot of those funds are going to go into risk assets" such as stocks and high-yield bonds, said UBS currency strategist Brian Kim.
Earlier, a report showing new orders rose for long-lasting U.S. manufactured items such as computers and appliances added to hopes of modest improvement in the economy, further drying up safe-haven flows into the dollar. [
]The euro fell more than 4 percent against the dollar last year as worries about a global recession and financial crisis encouraged investors to dump stocks and higher-yield currencies in favor of the dollar, seen as the safest store of value.
But with less desire for safe havens, investors have started to focus on the soaring U.S. deficit, which has weighed on the dollar.
The recent sharp rise in U.S. yields has come despite decent to strong demand at three Treasury auctions this week, which soothed some concern and supported the dollar.
But deficit worries won't disappear entirely, UBS' Kim said. The bank sees the euro stuck around $1.40 over the next month, though it expects a retreat to $1.35 in three months.
"We're a bit more constructive over three months because asset allocation could shift in favor of the United States if it leads the way out of the downturn," Kim said. (Additional reporting by Vivianne Rodrigues; Editing by James Dalgleish)