The Swiss are going to the polls today to vote on whether to approve a minimum wage of 22 francs ($25) an hour, which would be the highest in the world.
The measure would affect the one-in-ten workers who earn below the 4,000 francs that the initiative stipulates.
Businesses are against the union-backed proposal, saying it would force more people into part-time jobs and increase Switzerland's 3.2% unemployment rate. Polls show 64% of voters are against the initiative.
The referendum is the latest nationwide ballot relating to business. In March last year, voters authorized giving shareholders more say over executive pay but rejected a measure in November to cap management salaries.
The Swiss are also voting today over whether to spend 3.1B francs on 22 new Saab (SAABF) fighter jets.