The index addresses the legal rights (civil and political, economic, social, residency, and family reunion rights) granted to migrant workers admitted under labour immigration programs in high- and middle-income countries to admitting migrant workers. Labor immigration programs are defined as policies for regulating the number, skills, and rights of migrants who are admitted for the primary purpose of work. It includes 104 programmes in force for the year 2009. Migrant rights refer to the legal rights (defined here as the rights granted by national laws and policies) granted to migrant workers on admission under a particular labour immigration program. So the indicators measure rights “in laws and regulations” rather than “in practice”. The dataset includes all high-income countries with a population exceeding two million, and, to ensure broad geographic coverage, a selection of upper- and lower- middle-income countries. In total, the sample comprises 46 countries including 34 high-income countries.