Despite their informal nature, the violation of a gentlemen`s agreement could have negative consequences on trade relations if a party decides not to keep its promise. A gentlemen`s agreement can also be described as a ”gentleman`s agreement” and can be completed by a handshake or not. A gentlemen`s agreement is an informal agreement or transaction, often unwritten, which is supported only by the integrity of the other party to effectively comply with its terms. Such an agreement is generally informal, oral and not legally binding. In the automotive industry, Japanese manufacturers have agreed that no standard vehicle would have more than 276 hp (206 kW; 280 CH); The agreement ended in 2005.  German manufacturers limit the maximum speed of high-performance sedans (berlines) and breaks to 250 km/h.   When the Suzuki Hayabusa motorcycle exceeded 310 km/h in 1999, fears of a European ban or regulatory intervention led Japanese and European manufacturers to limit to 300 km/h at the end of 1999 See list of the fastest series bikes. Gentlemen`s agreements between industry and the U.S. government were common in the 1800s and early 1900s.
The Bureau of Corporations, a predecessor of the Federal Trade Commission, was established in 1903 to investigate monopolistic practices. The gentlemen`s agreement of 1907 () was an informal agreement between the United States of America and the Empire of Japan紳協 which did not allow Japanese immigration and Japan to no longer emigrate to the United States. The aim was to ease tensions between the two Pacific states. The agreement was never ratified by the U.S. Congress and was replaced by the Immigration Act of 1924. A report by the U.S. House of Representatives detailing its United States Steel Corporation investigation stated that in the 1890s there were two general types of associations or bulk consolidations between steel and ferrous interests in which different groups owned ownership, as well as a high degree of independence: the ”pool” and the ”Gentleman`s Agreement.”  The latter type lacked a formal organisation to regulate production or prices or forfeiture rules in the event of infringement.  The effectiveness of the agreement relied on members to meet informal commitments.  An intense anti-Japanese atmosphere has developed on the west coast.