Read the FT article "Danger of living in a benchmark bubble" by Michael Voss. According to the author, what is the primary "quality" of the index funds? What are the possible impact of benchmark investing on companies' behavior to get listed in an index? With supporting data from any periods after the article was published, (e.g., you can use one of the major index funds, such as Dow Jones Industrial Average or S&P 500, among others, for your answer) do you agree or disagree with the author's view that there is a dangerous benchmark bubble? Note that investment professionals use 40% or greater decline as a cutoff for market 'mega-meltdown'.