US STOCKS-Wall St set to open lower on labor data, ECB comments
* Private payrolls up 173,000 vs est. 175,000
* Weekly jobless claims unexpectedly fall
* ECB keeps interest rates unchanged
* Box falls after billings growth slows
* Futures down: Dow 19 pts, S&P 2.75 pts, Nasdaq 3.5 pts (Adds details, comment, updates prices)
By Yashaswini Swamynathan
June 2 (Reuters) - Wall Street was set to open slightly lower on Thursday, as data showing the U.S. labor market continued to strengthen even as the European Central Bank maintained negative interest rates.
The ADP National Employment report showed U.S. private payrolls increased a less-than-expected 173,000 in May. But, as the economy nears full employment, job creation would slow, said Mark Zandi, Moody's Analytics' chief economist.
The ADP data comes ahead of the U.S. Labor Department's more comprehensive non-farm payrolls report on Friday, which includes both public and private-sector employment. Continuación...