US markets open flat; Nasdaq edges up, Dow slips as investors eye China talks, oil gains

US equity markets showed mixed performance amid global economic concerns and anticipation of interest rate and inflation cues. The Dow and S&P 500 dipped slightly, while the Nasdaq gained, boosted by tech stocks. Trade tensions between the US and China, along with European political uncertainty, weighed on market sentiment. The OECD downgraded its global growth forecast, adding to economic worries.