| James B. Lewis has suggested that while tax revenues from trade comprised as much as 50% of the tax revenues of Kyŏsang province (where Pusan is located), the costs of receiving the missions from Tsushima, maintaining the ''Waegwan'', and providing rice and other goods to the missions, exceeded the economic benefits. Further, the residents of the ''Waegwan'' often caused trouble for the Tongnae magistrate & his provincial government (and even occasionally for the royal court), calling for additional food and supplies, engaging with Korean prostitutes, and occasionally rioting as a negotiating tactic. Lewis argues that Joseon may have maintained ties with the Sô despite this out of fears that the people of Tsushima might return to [[wako|piracy]] once again if access to authorized trade were denied, and/or out of a sense of obligation of their more civilized kingdom towards the people of Tsushima.<ref>Hellyer, 41-42, citing James B. Lewis, ''Frontier Contact between Chosŏn Korea and Tokugawa Japan, Routledge Curzon Press (2003), 107-145.</ref> | | James B. Lewis has suggested that while tax revenues from trade comprised as much as 50% of the tax revenues of Kyŏsang province (where Pusan is located), the costs of receiving the missions from Tsushima, maintaining the ''Waegwan'', and providing rice and other goods to the missions, exceeded the economic benefits. Further, the residents of the ''Waegwan'' often caused trouble for the Tongnae magistrate & his provincial government (and even occasionally for the royal court), calling for additional food and supplies, engaging with Korean prostitutes, and occasionally rioting as a negotiating tactic. Lewis argues that Joseon may have maintained ties with the Sô despite this out of fears that the people of Tsushima might return to [[wako|piracy]] once again if access to authorized trade were denied, and/or out of a sense of obligation of their more civilized kingdom towards the people of Tsushima.<ref>Hellyer, 41-42, citing James B. Lewis, ''Frontier Contact between Chosŏn Korea and Tokugawa Japan, Routledge Curzon Press (2003), 107-145.</ref> |