“…In economic literature the most known barriers to entry can be listed as cost advantage of incumbents, product differentiation, capital requirements, customer switching costs, access to distribution channels, government policy, advertising, number of competitors, Research and development, price, technology and technological change, market concentration, seller concentration, divisionalisation, brand name and trademark, sunk costs, selling expenses, expected reaction of incumbents to market entry, possession of strategic raw materials (Dilek and Top, 2012;Niu et.al, 2011).…”