China's entry into the World Trade Organization (WTO) two decades ago was "a tremendous push to globalization," benefiting both China and the world, a renowned U.S. economist has said.

"Without (China's) membership in WTO, a lot of economic growth and integration would not have taken place," Jeffrey Sachs, director of the Center for Sustainable Development at Columbia University, told Xinhua in a recent interview.

Sachs said he believes in globalization, "because we really have a benefit of sharing each other's knowledge, of travel and tourism, of different cultures, of different ways of knowledge, of different ways of innovation."

He noted that China has developed as a significant player over the past decades, becoming "the major trading partner for most of the world now," which is not only "a remarkable accomplishment," but also "a huge benefit for the world."

In the past 20 years, China's global ranking of trade in goods has risen from the sixth to the first, while that of its trade in services has jumped from the 11th to the second.

Calling China's sustained efforts to develop economic and trade ties with other countries an "excellent strategy," Sachs said the world's second largest economy is recommended to "continue to increase its trade with other parts of the world," adding China "can play a hugely positive role" in development in regions such as Southeast Asia, Central Asia, and Africa.

Moves like the Belt and Road Initiative are very important for helping finance development in other places, upgrading the infrastructure and building the economies that are still lagging behind, which in the long run are "mutually beneficial," he noted.

Sachs, who is also a senior United Nations advisor, lauded China's role in safeguarding multilateralism.

"China is a big supporter of the multilateral system, and this is exactly what we need right now," he said. "Most of our problems are global scale. Unless we have effective global institutions, we won't be able to solve these problems."

Sachs also highlighted China's "very constructive role" in stabilizing the global supply chain, noting other countries should also play their distinct part in mitigating the current supply-chain disruptions.

Meanwhile, he underscored the importance to keep "the international trading system open," as "an open international trading system is good for the world."

Sachs cautioned about the consequences of the U.S. obsession with the so-called "decoupling" theory, while emphasizing the need and urgency for closer collaboration between the world's two leading economies.

"Those who say we should decouple could lead us to conflict, which would be very dangerous. I like the interdependence," he said.

"It's extremely important that China and the United States find cooperative approaches" to address their differences, keep normal economic relations with each other and work together to solve some big problems like climate change, the COVID-19 pandemic and the conservation of ecosystems, he added.