The Asia Pacific Economic Cooperation forum also closed with a joint pledge to work toward a sweeping new free trade agreement that would include all 21 members as a path to "sustainable, balanced and inclusive growth," despite the political climate.
"We reaffirm our commitment to keep our markets open and to fight against all forms of protectionism," the leaders of the APEC nations said in a joint statement.
Speaking to journalists at the conclusion of the summit, Peruvian President Pedro Pablo Kuczynski said the main obstacle to free trade agreements in Asia and around the world is the frustration felt by those left behind by globalisation.
"Protectionism in reality is a reflection of tough economic conditions," said Kuczynski, the meeting's host.
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Referring to Britain's vote to leave the European Union and Trump's election win in the US, he said those results highlighted the backlash against globalization in former industrial regions in the US and Britain that contrasts with support for trade in more-prosperous urban areas and developing countries.
This was the last international summit for US President Barack Obama and he had been expected to promote the Trans-Pacific Partnership pact, a 12-nation trade deal. But he is no longer expected to seek ratification by Congress before he leaves office because of the election victory by Trump, who called the agreement a "disaster" for jobs.
Obama told reporters that the way to address income inequality and to create jobs is through crafting trade policy and agreements like the TPP in ways that will increase exports to the Pacific Rim countries that make up a third of the world's population.