Denmark, Finland, Iceland, Norway and Sweden. None of these nations have an minimim hourly wage enshrined in law. Instead many of the base terms of employment, including wages, are decided via collective bargaining between sector trade unions and representatives of public sector and business interest organizations.
I live in Sweden by the way, so feel free to ask me questions on the topic and I’ll do my best to answer.
It used to work like that in Italy, although not with a national minimum wage but with union-negotiated contracts. At least some of them had a clause that automatically raised base salaries according to inflation.
I read somewhere that clause was removed because it’d cause a vicious loop where raising inflation meant higher wages, which in turn drove up inflation.
At face value it makes sense, but I’m no expert so I can’t say whether that’s correct or some bs to keep wages low.
My understanding of the research is that a higher minimum wage can increase costs, but as a lesser proportion than the increase (edit; to the wage). Labor costs are only portion of expenses for any business, and workers making minimum wage only reflect a portion of the workforce. So, there’s not a zero effect, but I believe it’s usually less than fear mongering would suggest.
I haven’t read into this in at least five years, so happy to admit my own incorrectness if someone knows better.