Stock price when the opinion was issued
Whatever happens in the US affects the rest of the world. He wouldn't recommend emerging markets, as they tend to underperform if/when there's a recession.
Investors would be better off buying the best companies in the German market, rather than the whole German market. Germany's the 4th-largest economy in the world, but it's had a bunch of issues with its own deficit and economic slowdown. He owns specific stocks in Europe.