From one of the least developed countries in the world to a significant driving force for global growth, China's phenomenal economic transformation has sparked not only acclaim, but also suspicion. How has the nation made the achievements once thought impossible? What game-changing measures did China take every time others predicted the economy would collapse? And as China faces another turning point in its economic development, what is the biggest challenge in making a smooth transition towards high-quality development? Host Tu Yun talks to Justin Yifu Lin, the former chief economist of the World Bank, on the first episode of our special series commemorating the 75th anniversary of the founding of the People's Republic of China.