On this point, it should be noted that, against the background of the evolution of information processing technology such as natural language processing, image recognition, and machine learning, as well as improvements in the performance of computers, a trend towards utilizing types of information that was not expected and vast data for investment decisions and market analyses has started to become widespread.1 It is expected that in the future more information will become available for utilization and will facilitate enhancements in market efficiency, accompanied by initiatives for ensuing privacy and information security.
According to the latest World Economic Outlook from the International Monetary Fund (IMF), consumer price inflation in the advanced economies over the decade beginning in 1997 and ending next year looks set to come in at an average annual rate of less than 2 percent, down from 31/2 percent for the previous ten years.