From the US-China trade war to the impact of tariffs, here are the top things you may not know about China’s Economy. 1. What are China's trade tariffs and how are they used? Tariffs are extra customs duties imposed on imported goods, usually paid by importers. Learn more 2. What do you need to know about China trade? China’s export-driven economy accounted for 13 per cent of the world’s exports in 2017. Learn more 3. How’s China's food security drive going and why’s it important? China needs to feed 1.4 billion people, but questions have been raised about its food security. Learn more 4. Why is the US dollar-yuan exchange rate important? The exchange rate has become a closely watched issue again, including being dragged into the trade war. Learn more 5. What is China’s dual circulation economic strategy and why is it important? The plan places a greater focus on the domestic market, or internal circulation. Learn more 6. How's China unemployment rate measured and why is it important? China provides an official surveyed unemployment rate but it does not include migrant workers. Learn more 7. What’s the difference between China’s yuan and renminbi? China’s currency is officially the renminbi, while the yuan is technically the unit of measurement. Learn more 8. How's China's inflation measured and why is it important? Inflation captures the rising costs of goods and services in an economy. Learn more 9. What is China’s 2020 census, and why is it important? Held once a decade, it will be crucial to future economic and social planning. Learn more 10.What is China's GDP and why is it important? It is the value of all goods and services produced within the country over a certain time period. Learn more 11. What is China’s social credit system and why is it controversial? It monitors and assesses the trustworthiness of individuals, companies and government entities. Learn more 12. How big is China's Belt and Road Initiative debt and what’s next? The goal is to promote regional connections and economic integration, expanding China’s influence. Learn more 13. What is China’s sovereign digital currency? The so-called Digital Currency Electronic Payment (DCEP), could be launched in 2020. Learn more 14. How big is China's debt and who owns it? China’s domestic debt is believed to have risen to 335 per cent of gross domestic product (GDP) . Learn more