According to the World Economic Outlook published by the World Bank, the international economy is forecast to grow by 3 percent in 2015 and 3.3 percent in 2016. The US and the UK will maintain their economy recovery while Japan and the eurozone will remain sluggish, with growth forecast at no more than 1.1 percent. The World Bank also predicted that the US economy will grow by 3.2 percent in 2015. Developing countries are facing lots of challenges in its economic development.

The US seems to be the only engine of the world economy. But the US Federal Reserve is likely to raise its interest rate from 0 to 0.25 percent. The World Bank worries that any such move will make it more difficult for emerging economies to raise money. The US has emerged from its financial crisis while other countries are still trapped in economic troubles. From this perspective it is hard to assess whether the US is an engine or a threat to the world economy.

There is still a worry that Greece will exit the eurozone. If this happens, the eurozone will be thrown into turmoil. In Japan, so-called "Abenomics"  have failed to generate the anticipated results. Russia and Venezuela are each facing their own troubles and threats.

The US economy is closely linked to the whole. Only when other economies achieve sound development, can the US economy maintain sustainable development. The US can't just focus on its own development.

This article was edited and translated from 《美国是引擎还是威胁？》, source: People's Daily Overseas Edition, Author: Zhang Hong