Examples of this trend would be the growth of book superstores such as Borders and Chapters, who have replaced many independent bookstores not by offering different products, but by offering a greater number of books that only several smaller stores combined could match.
Intertropical Convergence Zone | Convergence and Union | Mobile-to-mobile convergence | Doob's martingale convergence theorems | Doob's martingale convergence theorem | Pointwise convergence | intertropical convergence zone |