There are key differences in marketing strategies between developing and developed markets. In developing markets, companies must adapt to local conditions like infrastructure challenges, income levels below $2/day, inefficient distribution networks, and volatile currencies. Successful companies in developing markets understand the local culture and languages, tailor affordable products to local needs, and find innovative solutions to distribution problems. The main developing markets discussed are BRICS countries (Brazil, Russia, India, China, South Africa), Indonesia, and West Africa, which provide significant revenue opportunities for multinational companies.