PepsiCo recently announced fourth quarter and full-year results with net revenue down 5% to $63 billion and diluted earnings per share down 14% to $3.67.But the real story is found in the bleak portrait of global economic malaise as painted by Chairman and CEO Indra Nooyi: Over my several decades in business, I have never seen this combination of sustained headwinds across most economies, combined with high volatility across global financial markets. From our meetings and observations traveling around the world, I've noted slow economic growth or recession across all but the US and a few other countries as a combination of geopolitics and oil have created many challenging economic outcomes.