4 pillars of Global Economy, 3 splattering

The 4 pillars of Global Economy I reckoned are: US, Europe, China, and Japan. 
However, while US is still recovering from recession, and China is slowing down, Europe is in dormant and Japan is now in recession! 

However, we don't need all 4 pillars to be flying to make money from investment, we just need to identify the one with back-burner and invest our money and bet on it! 

So, most of my money now I now bet on US stocks and US$. 
I have set aside some money for investing into European stocks and China stocks.

Japan?  Forget about it!  Chance of it recovering over the long-term is slim indeed! 

Diversified investments

In terms of diversification of investments, I am currently invested in the financial instruments (mainly stocks) listed in these countries:
1) Singapore
2) US
3) HK (and H-shares as proxy to China)
4) Germany

I have exposure to these currencies:
1) SGD
2) USD
3) HKD
4) EURO