employment to 14 years for non-agricultural jobs with restrictions on hours, restricts the hours for youth under the age of 16, and prohibits the employment of children under the age of 18 in occupations deemed hazardous by the Secretary of Labor. In 2007, Massachusetts updated their child labor laws that required all minors to have work permits. Workplace conditions Labor rights advocates have worked to improve workplace conditions which meet established standards. During the Progressive Era, the United States began workplace reforms, which received publicity boosts from Upton Sinclair's The Jungle and events such as the 1911 Triangle Shirtwaist Factory fire. Labor advocates and other groups often criticize production facilities with poor working conditions as sweatshops and occupational health hazards, and campaign for better labor practices and recognition of workers rights throughout the world. Safety and social sustainability Recent initiatives in the field of sustainability have included a focus on social sustainability, which includes promoting workers' rights and safe working conditions, prevention of human trafficking, and elimination of illegal child labor from the sustainably sourced products and services. Organizations such as the U.S. Department of Labor and Department of State have released studies on products that have been identified as using child labor and industries using or funded by human trafficking. Labor rights are defined internationally by sources such as the Norwegian Agency for Public Management and eGovernment (DIFI) and the International Finance Corporation performance standards. Living wage The labor movement pushes for guaranteed minimum wage laws, and there are continuing negotiations about increases to the minimum wage. However, opponents see minimum wage laws as limiting employment opportunities for unskilled and entry level workers. The benefits and costs of foreign direct investments on labor rights are often argued. Payton and Woo's study shows that even though "workers may not see drastic increases in minimum wages but they will benefit marginally from better enforcement of existing minimum wage laws or other protections granted in law, gradually improving overall working conditions, as more FDI flows in." Migrant workers Legal migrant workers are sometimes abused. For instance, migrants have faced a number of alleged abuses in the United Arab Emirates (including Dubai). Human Rights Watch lists several problems including "nonpayment of wages, extended working hours without overtime compensation, unsafe working environments resulting in death and injury, squalid living conditions in labor camps, and withholding of passports and travel documents by employers. Despite laws