A number of atypical contracts exist in OECD countries (such as casual, on-call and project-work contracts, see e.g. Venn, 2009). In addition, changing labour markets and the need to increase adaptation and flexibility have led to a blurring of the boundaries between dependent employment and self-employment. Many countries have seen a rising share of independent contractors who depend on a single employer for their income but are legally self-employed and their relationship with their employer is regulated by commercial law.