 In some cases, the president can legally have executive powers granted to them to undertake the day-to-day running of government (as in Austria and Iceland) but by convention they either do not use these powers or they use them only to give effect to the advice of the parliament or head of government.Some parliamentary republics could therefore be seen as following the semi-presidential system but operating under a parliamentary system.Typically, parliamentary republics are states that were previously constitutional monarchies with a parliamentary system, with the position of head of state given to a monarch.