> which helps technological change, which leads to a more efficient economy
You made a leap of logic here. The technological innovations in finance directly contributed to a more volatile economy that crashed and inflicted massive losses on huge swaths of the global population, many of whom never recovered.
You made a leap of logic here. The technological innovations in finance directly contributed to a more volatile economy that crashed and inflicted massive losses on huge swaths of the global population, many of whom never recovered.