During the classical period of colonialism, from the 1890s to the 1940s, much private Western investment in Africa was conducted through investment waves – short-lived booms related to demands for, and prices of, particular raw materials. One such burst of foreign financial interest occurred between 1905 and 1914 when, against the background of a climacteric in tropical rubber, 55 companies with a total nominal capital of £5 9 million were floated in Britain to undertake rubber production in Africa. The article, seeking to understand why British capital, largely responsible for the dramatic growth of rubber planting in Asia, made such little lasting impact in Africa, focuses upon the 26 companies set up for West African operations. It notes their high failure rate, which was related to the predominance of interest in wild rather than planted rubber.
Two principal reasons are adduced for the lack of commercial success of the 18 companies exploiting wild rubber concessions. The first, political and commercial opposition aroused by the exercise of monopoly rights over a natural forest product, is illustrated by the experience of three relatively large concerns in Liberia and the Ivory Coast. The second, an inadequate financial and managerial structure, is most obvious among companies with assets in the Gold Coast and Southern Nigeria, mainly fraudulent or near-fraudulent concerns floated to feed speculation in rubber shares during 1909–10. Their promotion involved the shadier fringes of the Edwardian capital market and was connected to the Gold Coast mining shares boom of 1900–1. These businesses made almost no contribution to the West African rubber trade.