After years of authoritarian rule, Asia-Pacific countries are slowly transitioning to democratic political structures. The three general types of such democratic political structure are: presidential, parliamentary and semi-presidential. The fundamental distinction between these systems of government depends on the relationship between the government, the parliament and (if any) the president. The composition of the government of countries such as South Korea, Japan, and Taiwan demonstrates the differences in legislative responsibility and coexistence among political entities that define the general types of political systems. The presidential system of government is defined with an executive branch headed by a president, who is both head of state and head of government. In such a system, the executive branch exists separately from the legislative branch; therefore it cannot be rejected by the legislator. South Korea is an example of the presidential political system. South Korea is led by a president who holds office for five years through nationwide demographic elections. In South Korea's presidential system, the president carries out executive functions through a cabinet consisting of 15 to 30 members (all appointed by the president on the recommendation of the prime minister), chaired by the president (who is solely responsible for making major policy decisions of the government). The prime minister is appointed by the president and approved by the National Assembly and serves as the principal executive assistant to the president unlike in the parliamentary system where he serves as the chief executive. As the principal executive assistant to the president, the prime minister oversees administrative ministries as... middle of paper... Party. Thus making China's political structure mixed. However, unlike other semi-presidential models, the executive and legislative branches are not separate but are both subject to the National Congress (the highest body of state power). Therefore, the president exercises functions consistent with the National Congress, which bears the marks of a classical parliamentary system. Despite sharing similarities with semi-presidential models regarding the executive branch, communist regimes should not be considered a semi-presidential system due to limited executive power. Countries such as South Korea, Japan, and Taiwan demonstrate differences in legislative accountability and coexistence. between political entities where aid defines the three general types of such democratic political structure: presidential, parliamentary and semi-presidential.