The Trump administration is pushing for a way to make sure China delivers on its commitments in any deal the two nations reach to defuse a trade war that has roiled financial markets and dimmed the outlook for global growth. The U.S. wrapped up three days of mid-level talks with China in Beijing on Wednesday, noting a commitment by President Xi Jinping\u2019s government to buy more U.S. agricultural goods, energy and manufactured products. For its part, China said the meetings were \u201c extensive, in-depth and detailed,\u201d and laid the foundation for a resolution of the conflict. The office of U.S. Trade Representative Robert Lighthizer said it wants any deal to include \u201congoing verification and effective enforcement\u201d and the U.S. will decide on next steps after officials report back to Washington. China\u2019s Ministry of Commerce on Thursday said the two sides \u201cimplemented the consensus\u201d reached by the two presidents in earlier talks, and discussed both trade and structural issues in the meetings. Investors welcomed signs of optimism from the talks. Stocks rose globally after the two economic powers appeared to inch closer to an agreement, with the S&P 500 Index rising for a fourth day to the highest in almost a month. The U.S. push for enforceable targets in a deal underscores the challenge of reaching a lasting truce. President Donald Trump and his deputies have criticized China for failing to live up to past promises, including a pledge to promptly open up the Asian nation\u2019s economy to more trade and investment after it joined the World Trade Organization in 2001. Trump and Xi have given their officials until March 1 to reach an accord on \u201cstructural changes\u201d to China\u2019s economy on issues such as the forced transfer of American technology, intellectual-property rights, and non-tariff barriers. It\u2019s a tight window in which to nail down deep changes to China\u2019s economic model, some of which past U.S. administrations advocated for years and U.S. lawmakers on both sides of the aisle support. A group representing American companies doing business in China welcomed the \u201csubstantive discussions,\u201d but stressed the need to work out key details. \u201cProgress should include a mechanism for the removal of tariffs and measurable, commercially meaningful outcomes,\u201d the U.S.-China Business Council said in a statement. The U.S. and China have slapped a tariffs on a combined $360 billion in each other\u2019s imports since July. The USTR statement didn\u2019t say whether progress had been achieved on its main concerns. The World Bank this week cut its outlook for the global economy as growth in trade and investment slowed and rising interest rates sapped momentum, especially in emerging markets. Stocks Up People familiar with the U.S.-China discussions said positions were closer on areas including energy and agriculture, but further apart on harder issues. Chinese foreign ministry spokesman Lu Kang said a one-day extension in talks showed both sides are serious about the negotiations. Some disagreements remain on structural issues and they need to be addressed when more senior negotiators meet later on, according to Chinese officials involved in the discussions who asked not to be identified. Later this month, Lighthizer is expected to meet with Vice Premier Liu He, Xi\u2019s top economic aide who is leading negotiations for China. Liu made a brief appearance at the talks in Beijing on Monday, boosting optimism that China was serious about making progress. Trump Said to Want Trade Deal With China to Boost Stock Market The talks were the first face-to-face meeting between the two sides since their leaders met on Dec. 1. Prior to the meeting, China made a number of concessions to U.S. demands including temporarily cutting punitive tariffs on U.S.-made cars, promising to open up its markets for more foreign investment, and drafting a law to prevent forced technology transfers. China also restarted purchases of American soybeans last month, providing relief for a crop hit by Chinese retaliatory tariffs. U.S. government data shows the Asian nation scooped up more than 2.6 million metric tons of beans in December and at least another 1.3 million were sold this year, according to people familiar with the matter. China aimed to buy at least 5 million tons of American soybeans as part of the truce. Trump is increasingly eager to strike a deal with China soon in an effort to perk up financial markets that have slumped on concerns over the trade war, according to people familiar with internal White House deliberations. The S&P 500 Index has fallen about 7 percent since Trump and Xi agreed on a 90-day truce at their meeting in Argentina last month. \u201cTalks with China are going very well!\u201d Trump tweeted on Tuesday.