The correct answer to this open question is the following.
A foreign policy that had the U.S. exchanging financial support for the right to "help" countries make decisions about trade and other commercial ventures. Basically, it was exchanging money for political influence in Latin America and the Caribbean.
Here we are talking about the United States foreign policy called "Dollar Diplomacy."
This foreign policy was created by the United States President Howard Taft, to establish a permanent control and influence on Latin America and the Caribbean countries.
The United States has many political and economic interests in the region. That is why President Taft listened carefully to the advice of Philander C. Knox -his Secretary of State- to establish economic security in Latin America.