The Stevenson Plan was hurtful to the United States economy, as the increase of a penny per pound of rubber would mean a loss of $8 million.
[2] Firestone, angered by Britain's policies, was determined to find a way for America to grow its own rubber.
The Liberian government, on the other hand, obligated themselves to a 5 million dollar loan from Firestone through his wholly owned subsidiary, the Finance Corporation of America.
An American financial advisor appointed by the United States controlled Liberia's finances and approved the country's annual budget.
These concessions, which practically made Liberia a protectorate of the United States, were opposed both inside and outside the country.