This literature, which became fashionable during the 1990s, and its use of a heuristic approach to analysis were motivated by the need to understand better how firms and workers located in developing countries were engaging with more recent processes of globalisation. For example, in both regions the fisheries value chain has received far less attention to date than other sectors in the GVC literature, such as textiles and clothing and high-value agriculture, even though the promotion of these value chains has been spurred by the creation of tariff rents conveyed by the international trading system. As a result, across the African, Caribbean and Pacific (ACP) countries, these sectors are important drivers of the expansion of labour-intensive formal employment opportunities.