Government type: Republic of Bolivia*
Country name: Republic of Bolivia (shortened locally to Bolivia)

* Currently the government is calling Bolivia the "Plurinational State of Bolivia" and this new name appears on all its websites and stationery.
For Bolivia's name to legally be changed a law must be passed. No law changing the country's name has been passed yet; however, the Bolivian government, a fairly large portion of Bolivia's population, and many international organizations are already calling Bolivia a "Plurinational State". 

The Bolivian Constitution:
is brand new. President Evo Morales (picture) and his political party the M.A.S. drafted a new constitution which was highly debated and negotiated until finally in October of 2008 the text was agreed upon in Congress. Approximately 60% of Bolivia's citizens voted to approve the new constitution during a national referendum on 25 January 2009 after months of dispute.
The 1967 constitution (revised in 1994) provides for balances three-way power between the executive, legislative and judiciary branches of government. However, the executive branch wields significant power while Congress generally debates and approves legislation the executive initiates. The judiciary branch is comprised of the Supreme Court and lower departmental courts. The judicial system and processes were reformed with the 1994 revision of the constitution.
In August 2006 Bolivia held its first “Constituent Assembly” since 1938 with the intent to revise and reform the Constitution once more. Despite the nature and purpose of holding a constituent assembly, President Evo Morales Aima's government has nominated many of his indigenous followers to head this revision.
National elections, ideally, are set to be held every 5 years; however, throughout the past 175 years of its history Bolivia has had nearly 200 heads of state.

Executive Branch of the Government:
President and Vice President: (the president is both the chief of state and the head of government)
Cabinet: (appointed by the president)

President: Juan Evo Morales Aima (goes by Evo, not Juan)
Vice President: Alvaro García Linera