(1998a) and Priutt, (1981) argue that effective negotiation is always possible if enough information can be collected through the table, regardless of differences in power strategies, because power strategies don't matter. direct relationship with common gains. This is shown in the article according to which American and Japanese negotiators maximized the common gain. American negotiators use direct information exchange a lot and ask many questions for open information exchange to identify trade-offs, while Japanese negotiators use indirect information exchange and persuasion with many questions and an exchange of general information to derive priority information needed for trade. reductions in offers (Adair et al., 2004). Rathus (1973) explained this phenomenon by the element of self-affirmation, the ability to express and defend one's own needs, interests and positions. Applying Canada and China (Ma and Jagger, 2005), Ma and Jagger (2010) show that self-affirmation is significantly positively correlated with the outcome of negotiations, regardless of national cultures. It is possible to get a bigger piece of the pie if they clearly understand that what they want (Mnookin et al..,