The consulting company Ramboll has, on behalf of the Tenants' Association, produced a report to show how rents would be affected if market rents were to be introduced.

Luleå is highlighted as an example of how market rents would affect northern Sweden.

A large part of the income from the rent

According to the report, there would be sharp rent increases in Luleå, 43 percent.

At the same time, households would need to spend 12 percent more of their disposable income to pay rent.

- If we take a woman with a median salary of about 29,000 a month.

If that woman demands a newly produced tenancy with an average rent for new production, she will spend almost half of her income on that rent, says Patrik Landin, housing policy investigator at the Tenants' Association.

Influence housing construction

The arguments for market rents are that it would increase housing construction and make it more varied.

- Market theory is based on the players in the market being rational and driven by self-interest.

That you would then build for everyone, that logic lags very much.

I would say that the forecast is the reverse, that one would only build for the most affluent groups.

The government with co-operation parties has appointed an inquiry into freer renting in new production, which will be presented on 31 May.

- When you make an exception to the principle on which all collective bargaining systems are based, you rock the entire foundation, says Patrik Landin.

The inquiry is part of the January agreement reached between the governing parties, the Center Party and the Liberals during the formation of the government.