"restriction" . "barrier of entry" . . "barriers to market entry" . "overcome the following hurdles" . "barriers for entry" . "perceived obstacles for entering the marketplace" . . "entry barriers" . "barrier to entry" . . "entry barrier" . "entrance barriers" . . "Barriers to entry" . "market barriers" . . "entry costs" . "entry controls" . . "barriers" . "barriers to entry" . "Barriers to entry" . "entry" . . "Barriers_to_entry#Barriers_to_entry_for_firms_into_a_market" . "the entry barrier" . "cost barrier" . .