What are the accumulation and legitimation crises that have compelled the Chinese leadership to adopt the strategy of “going global”?

China’s three-decade long economic boom has been a singular success in world historic terms. But scholars have argued that China also confronts global and domestic challenges to its capacity for growth and governance, especially since the turn of the new millennium. What are the accumulation and legitimation crises that have compelled the Chinese leadership to adopt the strategy of “going global”? Why, according to Jones and Zeng, is Beijing not always in control of the development of the Belt and Road Initiative?
please only use the sources that I have provided. I have included the reading, a powerpoint that was used in lecture and also a memo that i did before for format guidance.