The document summarizes key findings from PwC's 19th Annual Global CEO Survey, which interviewed 1,409 CEOs from 83 countries. CEOs are facing a complicated global environment with many uncertainties. They are less optimistic about global economic growth prospects and their own revenue growth. Top concerns include over-regulation, geopolitical uncertainty, and exchange rate volatility. While the US and China remain top markets, CEOs see opportunities in India, Brazil and other countries. They anticipate a shift towards a multi-polar world with multiple economic models, regionalization, and differing belief systems.