Structural changes in labor market and policies in the 13th five-year plan period China: historic transitions in the 12th five-year plan period achievements and lessons learned in the 11th five-year plan period 并列题名：China: historic transitions in the 12th five-year plan period Research on economic goals and strategies for the 13th five-year plan period Study on the environment of culture development and possible challenges in the 13th five-year plan period some important issues during the 14th five-year plan period