Sinn Féin's slamming sub-minimum rates of pay for young people.
The party's published a bill to scrap the practice by some employers to pay someone as little as 80% of the National Minimum Wage.
It says it's mainly happening to workers in their 20s, simply because it's their first or second year in employment.
Senator Paul Gavan says pay can be far lower than people think.
"Some of your listeners may not realise that actually there are rates of pay lower than the actual National Minimum Wage.
"Effectively for young people, in reality there's two rates of pay that are below the National Minimum Wage: people in their first and second year of work experience, and also for people aged under 18.
"They can be paid as little as €6.69 if they're under 18, or 7.64 or 8.60".
"There's larger numbers of people all the time, young people, engaged in employment in this so-called 'gig economy' on low rates of pay - and basically on 'if and when' contracts when they don't know how many hours of work they're going to get.
"And a significant amount of them are on these sub-minimum rates of pay".
He says ESRI research shows that between 1 in 10 and 1 in 20 companies continue to use these sub-minimum rates of pay.