calculating gross profit margin , BMO capital markets of U.S. rates strategy director Ian Lygen is described: "we believe that prices change due to interest rate debt investors don't want to stand in front of a sell-off on the eve of the end of catch a falling knife." But in order to better future, we must expand the definition of the word "profit", the economic benefits and social benefits are included, and understand that block chain itself is a social innovation of technical solutions. Additionally, some businesses tend to omit or neglect the after-sales service. /After putting the money into the pocket, businesses shoulder no responsibility for the successive service. This narrow-minded view wipes off the potential business based on customers' impression. When Businesses have been immersed in counting the temporary money, they have failed to gain more in future. /For example, the diamond of shoes from ABC I had purchased dropped off in two days. I had to head for the relevant repairing center. However, the repaired shoes broke again and irritated me to ask for the refund. What's more, they even charged more for the refunded money. Later I sworn never to offer a glance at this shop and dissuaded friends from visiting it. The customer's feeling directly decides on products' life in the market. When the UK government launched its Decarbonisation and energy efficiency roadmap 2050 project – working with the UK’s eight most energy intensive manufacturing industries, including glass – British Glass saw an opportunity to develop a new type of relationship with policy makers. Dave Rosenberg, chief economist at Gluskin Sheff, said there was no real breakthrough in the bond market, and that current interest rate yields did not significantly break the mean and median levels since 2009.