European equity markets are poised to open lower on Friday as investors exercise caution ahead of Federal Reserve Chair Jerome Powell's forthcoming address at the Jackson Hole symposium. Market participants are eager for guidance on the trajectory of U.S. interest rates, particularly amid prevailing uncertainties regarding potential delays in expected rate cuts. Meanwhile, European focus will shift to Germany's final second-quarter GDP figures and August's business confidence statistics from France, which might shed light on the region's economic vitality. No significant corporate earnings reports are expected on Friday. In premarket activity, futures for both the Euro Stoxx 50 and Stoxx 600 indicated a 0.1% decline.