Why did coffee and bananas become important to Central American economies?

From the mid-19th century, Central American economies became heavily dependent on the production of coffee and bananas for export.1

Coffee
Leaders in countries like Costa Rica recognized the potential for coffee cultivation early on, promoting it as a primary export. The trade attracted significant foreign investment, particularly from Britain, and provided a viable livelihood for farmers, even those with small landholdings.2

Bananas
The rise of the banana industry was closely tied to infrastructure development and foreign corporate expansion. In Costa Rica, for example, the construction of railways to transport coffee to ports led to vast land grants for developers like Minor C. Keith. These land grants were used to establish banana plantations, and by the late 19th century, bananas rivaled coffee as a chief source of foreign exchange.2

This industry was largely dominated by American corporations, such as the United Fruit Company, which exploited land and labor. This corporate dominance often led to political instability, as these companies exerted significant influence over local governments to protect their commercial interests, a phenomenon that gave rise to the term banana republic.3