US STOCKS-S&P futures edge up after selloff; PPI, UMich data on tap
* Producer prices, UMich consumer sentiment data on tap
* General Mills falls after outlook
* Aeropostale drops after earnings
* Futures: Dow down 4 pts, S&P up 0.75 pts, Nasdaq up 3.25 pts
By Chuck Mikolajczak
NEW YORK, March 14 (Reuters) - U.S. S&P 500 stock index futures inched higher on Friday, indicating the index may hold its ground after its biggest decline since early February, ahead of data on inflation and consumer confidence.
* Equities tumbled on Thursday on rising concerns over Ukraine and Russia and new signs of an economic slowdown in China.
* U.S. Secretary of State John Kerry will seek assurances from Russia on Friday that it will not seek to annex Crimea and will address concerns over Ukraine through negotiation, a senior State Department official said before talks in London.
* Kerry's meeting is an attempt to defuse tension between Moscow and the West ahead of a referendum, which looks set to proceed on Sunday, that will decide whether Crimea will become part of Russia, a Russian-majority region of Ukraine. Continuación...