Precariousness
In a case study on the problems of the construction industry in Germany, it was estimated by IG BAU that "one third of the GDP in the construction sector and handicraft is created via informal work" and that "[i]nformal migrant workers receive wages more than 30% below or just about 10 to 15% of the minimum wage of the construction sector." Such
construction workers find themselves in a situation of precarity and are not adequately protected by the country's legal provisions.
(Agtas, O., L. Sauviat and B. Amler,
Why not Organising? Trade Unions and Precarious Migrant Workers in Germany, South Korea, and Spain, Global Labour University, Berlin, 2007, visited 2010-02-16)