National Congress of Argentina sessions span is from March 1 to November 30; the President of Argentina is entitled to convene extraordinary sessions during the recess, if needed. Senators and deputies enjoy parliamentary immunity during their mandates, which may be revoked by their peers if a senator or deputy is caught "in flagrante", in the midst of committing a crime. The Congress is in charge of setting taxes and customs, which must be uniform across the country. It rules the Central Bank of Argentina, manages internal and external debt payment, and the value of national currency (currently the Argentine peso). It rules the legal
Currency substitution Currency substitution Currency substitution or dollarization is the use of a foreign currency in parallel to or instead of the domestic currency. Currency substitution can be full or partial. Most, if not all, full currency substitution has taken place after a major economic crisis, for example, Ecuador and El Salvador in Latin America and Zimbabwe in Africa. Some small economies, for whom it is impractical to maintain an independent currency, use those of their larger neighbours; for example Liechtenstein uses the Swiss Franc. Partial currency substitution occurs when residents of a country choose to hold a significant share of their