applying elliott wave theory profitably Microsoft's Surface Pro, Surface Laptop, Surface Book and Surface Studio are the main products of Microsoft's Surface series, but there is a clear difference in the share of the devices. The Surface Pro products account for the highest share (79.9%), the Surface Book (7.5%), Surface Laptop (2.0%), and Surface Studio (0.2%). Two extremes can be envisaged. In an extreme case, each production is done by a single individual, such as a person making a car. In this way, the person is going to trade with a lot of intermediate goods suppliers, and also to trade with the demanders of their products. In this case, all transactions are conducted through the market in many individuals. In another extreme cases, all the production in the economy in a large enterprise, such as the complete car was produced in the enterprise interior, don't need to make any intermediate products trading market. Therefore, the same transaction can be conducted either through the organizational form of the market or through the organizational form of the enterprise. Companies exist, or companies and markets coexist, because some transactions cost less in the enterprise, while others cost less in the market. Among them, the repeal of the affordable care act means obamacare will be repealed, and the tax reform bill has essentially repealed obamacare. The media is expected to sign a tax reform bill on January 3 that would make it a bill. On the other hand, the surge in yields makes interest rates look more attractive than in developed economies, a situation that has been rare since late 2010: For those who have already dabbled in this field, their confidence in the future of the blockchain has been validated and consolidated through a huge crowdfunding fund. So far, about $3.6 billion has been raised based on the etheric block chain, which makes it a "killer app" for the platform. This two days of U.S. stocks in the capital market, there was a dark horse, the named Longfin company, in just two days, rose more than 2000%, and due to rise too fast, multiple trigger exchange circuit breakers. It is understood that the company is mainly engaged in the use of artificial intelligence technology to provide financial services. Longfin (NASDAQ: LFIN), which was founded in February, has been trading on the NASDAQ stock exchange since last week at $5 a share, a very young start-up. "Manufacturing companies with complex and lengthy international supply chains, such as the automotive industry, could also face significant challenges. These developments could also have a significant impact on productivity growth. "