In international business negotiations, cultural differences are inevitable between negotiators from different countries. Cultural values can influence international business negotiations in significant and unexpected ways from the first to the last stage of a negotiation. The diversity of values of partners results in different approaches used in the negotiation process and variable expected outcomes. Successful international business negotiation is not guaranteed by following practical negotiation tips. In fact, it would be more useful for negotiators if the most critical success factors of international business negotiations in a particular culture could be identified in advance.