Buying on the dips: Solid investment strategy or risky behaviour? – The Globe and Mail – Oct 20 2016

It’s one of the most basic rules of investing – buy low, sell high. One of the best ways to implement that rule is to “buy on the dips.” That is, invest your money when the overall market falls, or the price of an individual stock retreats.

Advocates of the strategy include legendary investor Warren Buffett. Many other investment advisers believe in the strategy, but with some important qualifiers.