So he is confident that Dollar General will maintain a 5% comparable-store sales gain largely due to its price advantage over Wal-Mart.

FORBES: Discount Retailer Dollar General Taking Away Market Share From No. 1 Wal-Mart

With roughly comparable income, the way parents try to give their children an advantage is to have fewer of them (relative to other families), so as to maximize the investment that can be made in each.

FORBES: Demographic Decline and Investment Intensity in Children -- Observations on China and Japan