Trade unions, employers' associations and collective agreements cover a large share of the employees in Sweden. The high coverage of collective agreements is achieved despite the absence of state mechanisms extending collective agreements to whole industries or sectors. Both the prominent role of collective bargaining and the way in which the high rate of coverage is achieved reflect the dominance of self-regulation (regulation by the labour market parties themselves) over state regulation in Swedish industrial relations. When the Swedish Ghent system was changed in 2007, resulting in considerably raised fees to unemployment funds, a substantial decline in union density and density of unemployment funds occurred.