What economic ties did haiti have to the united states at the time? i also need the link to where the info came from

Over the past two hundred years, the United States has played a important role in the economic and political activity of Haiti, its close neighbor to the south. The United States’ refusal to recognize Haiti as a country for sixty years, trade policies, military occupations, and role in Jean-Bertrand Aristide’s removal from Haiti are little known by Americans, but significant for the development, or rather, lack of development in Haiti. https://library.brown.edu/create/modernlatinamerica/chapters/chapter-14-the-united-states-and-latin-america/moments-in-u-s-latin-american-relations/a-history-of-united-states-policy-towards-haiti/