In 2014 China became the world’s largest economy (based on PPP estimates of GDP), and it currently generates about 19% of global output. This means the Chinese economy is a powerful engine for global growth. Each additional percentage point of growth there contributes approximately 0.19 percentage points to global growth. In 2018 China alone was responsible for 32% of the global 3.7% GDP growth.
Since 2009 China has been the second largest commodity importer globally. According to preliminary estimates, Beijing bought 12% of goods sold globally in 2018. China is now the largest market for critical materials, minerals, and energy commodities.
Probably the most economically significant statistic here is that China is now the world’s largest importer of crude oil. As the national economy slows, energy demand will decrease, which can put a lot of pressure on all other global commodity markets.
Additionally, over the last decade China (together with Hong-Kong) has attracted about 16% of global foreign direct investment (FDI) and was itself a source of 10% of global FDI.
All these facts demonstrate the influence of the size and global integration of the Chinese economy. Domestic growth creates jobs, exports, returns on investment, and funding flows worldwide that affect international economies and commodity markets, which in turn increase foreign dependencies on the health of the Chinese economy. In the words of Kenneth Rogoff, “When the downturn arrives, the world is likely to discover that China’s economy matters even more than most people thought.”
First, economists often cite agriculture and manufacturing revolutions as vivid examples of automation’s impact on employment in the past6. And indeed, if we look at these on an isolated industry-by-industry basis, the shifts seem radical: In the British census of 1841, 22 percent of citizens registered as agricultural workers; today that number is below one percent7. In the United States over roughly the same period, the agriculture share of employment declined from 58 percent of total employment to 2.5 percent8.