formula profit and loss But the DRAM and NAND semiconductor industries have gone from boom to bust in the face of rising prices and the abundance of falling prices. Will it be any different this time? Or is the need for mobile device memory and disk replacement sufficient to continue to delay the abundance until the foreseeable future? In ancient China, the term "sedan" was used to refer to the sedan chair. When western cars entered China in large Numbers, it was the closed square cars that were popular in the west But to increase political accountability and to sacrifice the independence of the central bank is to throw the baby out of the bath. Monetary policy is complex and technical. Handing control to politicians is more prudent than handing over keys to the country's nuclear power plants. How to create a more inclusive and fairer society for different creators? A study from PBS shows that diversity helps develop better products and systems.