Four referendums were held in Switzerland during 1923.Nohlen, D & Stöver, P (2010) Elections in Europe: A data handbook, p1909 The first two were held on 18 February on protective custody and a federal resolution on relations with France over the former free trade area of Haute-Savoie. The third was held on 15 April on a popular initiative "for the ensuring of people's rights in questions regarding tariffs", whilst the fourth was held on 3 June on amending articles 31 and 32bis of the constitution regarding alcohol. All four were rejected by voters.
Background The referendums on protective custody and tariffs were both popular initiatives, which required a double majority; a majority of the popular vote and a majority of the cantons.Nohlen & Stöver, p1891 The decision of each canton was based on the vote in that canton. Full cantons counted as one vote, whilst half cantons counted as half. The referendum on relations with France was a "facultative referendum", which required only a simple majority of voters in favour, whilst the referendum on amending the constitution was a mandatory referendum, which also required a double majority.
Results
Protective custody ChoicePopular voteCantonsVotes%FullHalfTotalFor55,14511.0000Against445,60689.019622Blank votes25,109––––Invalid votes1,016––––Total526,87610019622Registered voters/turnout989,66153.2–––Source: Nohlen & Stöver
Relations with France ChoiceVotes%For93,98218.5Against414,30581.5Blank votes19,515–Invalid votes1,024–Total528,736100Registered voters/turnout989,66153.4Source: Nohlen & Stöver
Tariffs ChoicePopular voteCantonsVotes%FullHalfTotalFor171,02026.8010.5Against467,87673.219521.5Blank votes10,813––––Invalid votes1,450––––Total651,15910019622Registered voters/turnout990,20265.8–––Source: Nohlen & Stöver
Constitutional amendments ChoicePopular voteCantonsVotes%FullHalfTotalFor262,68842.29210Against360,39757.810412Blank votes11,931––––Invalid votes1,575––––Total636,59110019622Registered voters/turnout985,77464.6–––Source: Nohlen & Stöver
References