One thing that is for sure, is that when adopting strategies to diversify your portfolio, the investments that you select must create a buffer against financial crisis, political unrest and economic uncertainty. Furthermore, these profitable results must be produced consistently, and over an extended period of time.
A buffer against financial crisis is best be achieved by investing in a number of different asset classes. This approach works to smooth out investment performance over a long period of time, as some assets in the portfolio will perform well in changing markets; while others will not.
The most important thing to recognize, is that portfolio diversification as a hedge works well, especially when strategies including investments in a major asset class; such as hard assets. Whether it's through physically owning a commercial building or bars of gold, investing in shipping containers or land, hard assets have demonstrated that they can be a great long term addition; to any investor`s portfolio.