According to an article from China News Service, a report issued by the Chinese Academy of Social Sciences on 24 December 2014 states that labour disputes remain the number one source of social conflict in China. 

The report indicates that 522,000 labour arbitration cases involving 721,000 workers were handled in the first three quarters of 2014, representing increases of 5.6% and 11.1% respectively, on the corresponding period in 2013. According to the report, mass protests that stemmed from labour disputes have also been on the increase. These protests mainly related to disputes over unpaid wages, mass layoffs/redundancies and economic compensation, taxi operation, and social insurance and benefits. The report noted in particular that 52 protests in the first three quarters of 2014 involved more than 1,000 workers each, indicating an increase not only in the frequency of large-scale protests, but also in the number of workers participating.