Quota systems for private and/or public enterprises or institutions exist in the majority of EU countries. Their target is to stimulate labour demand by committing employers to employ a certain share of employees with disabilities. Typically, the stipulated share ranges between 2% and 7% of the workforce. In most countries the degree of fulfilment ranges between 30% and 70%. According to available empirical data, quota systems only lead to small net employment gains. While already employed persons who become disabled and can be included are more likely to remain employed, quotas only provide small incentives to hire disabled people.