what do you mean by cryptocurrency, Knowledge graph

Wang Wentao, Minister of Commerce, met with Coleman, Secretary-General of the OECD, and Wang Wentao, Minister of Commerce, met with Coleman, Secretary-General of the Organization for Economic Cooperation and Development, in Beijing on December 9 to have an in-depth exchange of views on the world economic situation and further deepening bilateral cooperation. Wang Wentao pointed out that China is willing to share policy experience, conduct personnel exchanges and promote pragmatic cooperation with the OECD in the fields of trade and investment, digital economy and green development. It is hoped that the OECD can continue to give full play to the advantages of the "incubator" of global high-standard international rules, work with China to promote the construction of an open world economy and oppose protectionism. Coleman spoke highly of China's achievements in realizing economic development and opening wider to the outside world, and said that China's strong economic growth has played an important supporting role in the global economy. He is willing to cooperate more closely with China in the fields of climate change and service trade, oppose protectionism and jointly meet global challenges.The CFPB of the United States ordered the supervision of Alphabet to file a lawsuit to fight back. The Consumer Financial Protection Agency (CFPB) announced that it ordered the federal supervision of Google Payment under Alphabet and determined that the services provided by Google Payment posed risks to consumers. Google Payment has filed a lawsuit against the authorities' decision.Italian prosecutor: Meta did not pay 888 million euros of value-added tax from 2015 to 2021.

According to statistics, on December 9, as of press time, five A-share listed companies including Jinghua Laser, Wuxi Zhenhua, Mindong Electric Power, Tefa Service and Yandongwei disclosed their holdings.The Houthi armed forces in Yemen claimed to carry out military operations in Ashdod, Israel and hit the target. On December 9, local time, the Houthi armed forces in Yemen issued a statement saying that they successfully launched a military operation in Ashdod, Israel, and successfully hit the target.The word "moderate easing" releases the economic signal next year. On December 9, an important meeting was held. The meeting analyzed and studied the economic work in 2025, and mentioned that a moderately loose monetary policy should be implemented next year. Since 2011, China has maintained a sound monetary policy tone for a long time. This time, the prefix of monetary policy has changed to "moderately loose", which means that economic policy will provide more liquidity next year. (Yuyuan Tan Tian)

Lianchuang Optoelectronics: The smooth-blade series laser anti-UAV products have carried out preliminary cooperation negotiations with several airports. Lianchuang Optoelectronics said on the interactive platform on December 9 that in the face of "low-slow and small" flying objects represented by drones, there is a lot of room in the domestic low-altitude security equipment market. The company's smooth-blade series laser anti-UAV products are combined with the developed "low-altitude defense system command and control platform application software" and have the ability to install and deploy countermeasures equipment groups. To build a low-altitude defense system for users, we have carried out preliminary cooperation negotiations with several airports, but it is still in the early stage of negotiations, and there is still some uncertainty about whether we can expand the domestic airport security market as expected.The French CAC40 index rose by 1.00% in the day.MicroStrategy once again bought more bitcoins, and its fund-raising attracted much attention. Today, MicroStrategy bought another $2.1 billion in bitcoins, and at the same time, the company sold a combination of stocks and fixed-income securities to fund the rapid increase in purchases, which attracted more and more attention. This is the fifth consecutive Monday that the company announced the purchase of digital assets. Michael Saylor, co-founder and chairman of the company, decided that this small enterprise software manufacturer needs to take a different road to survival. In the past four years, his accumulated bitcoin is currently worth more than $41 billion. In October this year, he announced plans to raise $42 billion in the next three years by selling stocks in the market and issuing convertible bonds, thus accelerating his strategic transformation. The danger now is that the year-long rebound of cryptocurrency may be reversed. In this case, leveraged bets on its value may have serious consequences for its owners.