(ProQuest: ... denotes formulae omitted.)I.INTRODUCTIONTrade liberalization happens to make winners or losers within countries. As argued by Ricardian, Hecksher-Ohlin, and other trade models, there would be no doubt that trade liberalization creates benefit for countries implemented such policy. However, since trade liberalization demands specializations on the most efficient sectors within country, relatively less efficient sectors inevitably have less resources allocated and thus less production. It is said that trade liberalization would enhance efficiency by allowing production resource within country to be allocated in proper sectors in production but it would aggravate the fairness between sectors within a country.Since the trade negotiation results in serious gap between sectors, they would be in conflict, and thus the trade liberalization is hard to implement. Uruguay Round had to go through eight- year long negotiations, and the Trans-Pacific Partnership agreement, only with 12 countries, also took almost eight years to be concluded.This paper experimentally studies the performance of negotiation considering individual and party, like a country, share of benefit over the best ones. The experimental design for this paper considers two-stage bargaining games, internal and external negotiations. The first stage, internal negotiation, is designed to be an internal negotiations between two players. One of the two players is called power player, who would be advantageous position on the allocation of fixed amount benefit compared to other player, non-power player. The second stage of the games, external negotiation, is a divide-the dollar games between two power players in each party. The power player who is at better position in allocation of benefit participate in the external negotiation as a representative of each party. In the end, share of benefit to each party would be determined by the performance at the external negotiation, and the share attributed to each party would be divided by the allocation determined at the internal negotiation.From the experimental results, this paper is to analyze some aspects of internal and external negotiations. This paper studies (1) allocation of benefit as the result of internal negotiations, (2) share of benefit to players, and (3) factor to affect performance of external or internal negotiations on the trade negotiations. From the analyses, we can have policy implications on trade negotiations in that how to start and peruse the trade negotiations considered internal and external negotiations.Baron and Ferejohn (1989) identify the equilibrium in non-cooperative multilateral bargaining games and shows the proposing power in the legislative bargaining. Morelli (1999)'s demand bargaining game shows the limited proposing power under a various rules. Winter (1996) added the power of veto right to the Baron and Ferejohn (1989). As experimental studies on bargaining, Frechette, Kagel, and Lehrer (2003) experiment Baron and Ferejohn (1989), and Frechette, Kagel, and Morelli (2005a, 2005b, 2005c) compare Gamson (1961), Baron and Ferejohn (1989) and Morelli (1999) with diverse experimental settings. Those show the qualitative similarity but quantitative difference between experiments and the theories. Kagel, Sung, and Winter (2010), and Sung (2012, 2015a) discuss veto player games based on Baron and Ferejohn (1989) and Winter (1996). Those stress the strength of veto power, compared to that of proposing power or multiple votes. In particular, Sung (2015a) applies the experimental results on games with veto players on the trade negotiations and identifies learning mechanism in the process of negotiations. Sung (2015b) experimentally analyzes the Trans-Atlantic Trade and Investment Partnership (TTIP) using the two stage games. It sees determinants to bring better agreement in internal negotiations and factors to affect absolute size of individual prize for the TTIP. …