Forget 해석용역: 10 Reasons Why You No Longer Need It
https://www.evernote.com/shard/s649/sh/9203634e-114b-4b3f-8e99-6472bda8a400/f3baff4fb7125b91f48a2af8e46db895
Risk is lowered by Keeping quite a few non correlated investments. Set simply, some go up, some go down and put together, the return concentrations from the fluctuations, or risk.