The dollar fell on Thursday after data showed that inflation was in line with economists' expectations in January.
Evan Feigenbaum from the Carnegie Endowment for International Peace talks about the benefits arising from President Biden and President Xi's meeting, and some perennial tensions in US-China relations.
The G-20 leaders' summit could discuss the pace at which countries want to move toward net-zero carbon emissions by 2050, or the goal of keeping global temperatures from rising more than 1.5 degrees Celsius, says Creon Butler of Chatham House.
Helen Clark, former prime minister of New Zealand, says although Covid vaccine production has increased, the distribution is so uneven that frontline workers and vulnerable communities in poor countries have yet to be inoculated.
CNBC's Ylan Mui reports on G-20 finance ministers working on a global minimum tax rate.
Fariborz Moshirian, director of the Institute of Global Finance at the University of New South Wales, says countries like Switzerland and India, for instance, are unsure if they can meet the 15% global tax deadline by 2023.
Allison Christians from McGill University's Faculty of Law says a wealth tax aimed at the very rich is hard to implement in a globalized world.
James Crabtree from IISS Asia says geopolitical tensions among G20 nations are responsible for a "deficit of global cooperation" and will lead to a lack of "useful" outcomes.
The G-7 or Group of Seven is an organization made up of world's "most influential" and "advanced" economies. Every year, the leaders of the United States, United Kingdom, Canada, France, Germany, Italy and Japan gather to talk global affairs. But why seven countries and what does the group actually do? CNBC's Silvia Amaro is joined by Steve Sedgwick to explain.