What are the barriers to conducting international business?

LANGUAGE. Every other barrier can be overcome if you can communicate effectively and know that the other country understands EXACTLY what you are saying....and that you understand EXACTLY what they are saying. American business vernacular can be burdensome and you need to stick to "the Queen's English". Other barriers could be "etiquette" and chain of command - political standing, cultural and social proprieties such as " saving face" to orientals Our embassy in each foreign country might be a valuable first contact.