Blue-chip stocks are so named because of their long track record as well as strong competitive moat.Every investor should include some blue-chip stocks to form the bedrock of their investment portfolio.Such businesses provide a stable anchor for the portfolio during troubled times, helping you to enjoy a good night’s sleep.What’s more, blue-chip stocks also pay a dividend, enabling you to receive a useful stream of passive income.Here are four reliable Singapore blue-chip stocks that you can pass down to yo ...