GLOBAL MARKETS – Stocks struggle higher as PMIs weigh – Reuters
* Lull as Wall Street hits record highs
* Dollar rebound runs out as US labor market looks weak
* German, French and EZ PMI below expectations
* Chinese yuan reaches its highest level in 7 months
By Karin Strohecker
LONDON, Aug.21 (Reuters) – Global stock markets posted cautious gains on Friday, inspired by tech stocks on Wall Street, but lukewarm economic data and high valuations held…