why do we have cryptocurrency- Top Knowledge graph

Market news: the agency said that the number of people applying for unemployment benefits in the United States jumped to the highest level in two months, but it was still at a low level.CHRISTIAN MEUNIER was appointed as the chairman of NISSAN Americas.The European Central Bank cut interest rates for the third time in a row to boost the sluggish economy. The European Central Bank cut interest rates for the third time in a row on Thursday, and hinted that with inflation approaching 2% and the economy in trouble, it will further cut interest rates next year. The deposit interest rate was lowered by 25 basis points to 3%, which was in line with the expectations of all but one of the analysts surveyed. This makes the total easing range since June reach 100 basis points. In its statement, the European Central Bank abandoned the wording that the policy would be "fully restrictive for a necessary long time", indicating that its position has changed. "The Management Committee is determined to ensure that the inflation rate is sustainably stabilized at the medium-term target of 2%." The European Central Bank said on Thursday. "The central bank will adopt a method of relying on data and meeting one after another to determine the appropriate monetary policy stance."

Baiyang Pharmaceutical Group signed an agreement with Peking University Hospital. On December 12, Baiyang Pharmaceutical Group signed a cooperation agreement with Peking University No.1 Hospital, and obtained the exclusive right to patent, clinical development and registration, production and marketing of "targeted integrin small molecule inhibitor" in Peking University Hospital.Trump was elected as Time Magazine's Person of the Year for the second time, and Time Magazine awarded Donald Trump, who is about to re-enter the White House, with the recognition of his amazing political comeback and his historic year of assassination attempt and felony conviction. This result also confirms the general expectation. Since Bush in 2000, the magazine has awarded this honor to the winner in every presidential election. Trump was also named the magazine's person of the year when he first won the US election in 2016.Australia plans to force technology giants to pay for news content. The Australian government announced a new tax plan on the 12th, which will force technology giants to pay for news content to Australian media companies, otherwise they will face the risk of being charged higher taxes. According to the Australian government's plan, all digital platforms with an annual income of more than A $250 million (about US$ 160 million) in Australia must reach a commercial agreement with Australian media organizations on the use of news content, otherwise they will face the risk of being charged higher taxes. (Xinhua News Agency)

European Central Bank President Lagarde: Regardless of the market pricing of interest rate hikes, European Central Bank President Lagarde said that the European Central Bank will adjust its policies according to the data and will decide the policies of each meeting one by one. The neutral interest rate cannot be accurately determined without considering the market pricing of interest rate hikes.European Central Bank President Lagarde: Macro-prudential policy is still the first line of defense against the accumulation of financial fragility. European Central Bank President Lagarde: Macro-prudential policy is still the first line of defense against the accumulation of financial fragility.American stock index futures maintained a downward trend, with S&P 500 E-MINI futures down 0.3%, Nasdaq futures down 0.6% and Dow Jones futures down 0.1%.