Gentlemen`s agreements were a widespread discriminatory tactic, which would have been more common than restrictive alliances to maintain the homogeneity of upper-class neighborhoods and suburbs in the United States.  The nature of these agreements made it extremely difficult to prove or follow them, and they were long after the U.S. Supreme Court decisions in Shelley/. Kraemer and Barrows v. Jackson.  A source indicates that the gentlemen`s agreements are „probably still in place“ but that their use has declined sharply.  Concessions were agreed in a note that, a year later, consisted of six points. The agreement was followed by the admission of Japanese students to public schools. The adoption of the 1907 agreement spurred the arrival of „image marriages,“ women who were closed remotely by photos.  The creation of distant marital ties allowed women who wanted to emigrate to the United States to obtain a passport, and Japanese workers in America were able to earn a partner of their own nationality.  As a result of this provision, which helped to reduce the gender gap in the Community, from a ratio of 7 men per woman in 1910 to less than 2 to 1 in 1920, japan`s population continued to grow despite the immigration restrictions imposed by the agreement.
The gentlemen`s agreement was never enshrined in a law passed by the U.S. Congress, but it was an informal agreement between the United States and Japan, which was implemented by unilateral action by President Roosevelt. It was repealed by the Immigration Act of 1924, which prohibits all Asians from immigrating to the United States.  Until Jackie Robinson was hired by the Brooklyn Dodgers in 1946, a gentlemen`s agreement ensured that African-American players were excluded from organized baseball.  A gentleman`s agreement, defined at the beginning of the 20th century as „an agreement between gentlemen who looks at price control,“ was described by one source as the loosest form of a „pool.“  Such agreements have been declared in all industrial sectors and are numerous in the steel and steel industry.  An intense anti-Japanese atmosphere has developed on the west coast. U.S. President Theodore Roosevelt did not want to anger Japan by passing laws banning Japanese immigration to the United States, as had happened with Chinese immigration.