It is so powerful that many fortune 500 companies have used, some are still making use of, this business model to construct their multi-million dollar empire.
Kunamandla kangangokuba abaningi inhlanhla 500 izinkampani baye bazisebenzisa lezi zindlela, abanye namanje usebenzisa le imodeli yebhizinisi ukwakha multi-million dollar umbuso wabo.