Any investor who has spent reasonable time in the stock market would know that no one asset class will generate the best returns at all times. There are times when investing in the equity market may mean better returns than investing in the debt market, or vice versa. Having invested in the right asset class or the right balance of the two could have a huge bearing on whether or not an investor is able to create wealth for the long term. This is where an asset allocation based approach trumps a piecemeal approach. A piecemeal approach means picking and choosing schemes without a clear objective in mind, which is how a lot of mutual fund investments occur.