Earlier quoted context omitted.
Maybe I'm too "left wing", but if you ask me short selling, complex products and high frequency trading are among technological "improvements" that have led actual stock exchange to an ugly mess where biggest profits are made by "scamming" efficiently other users. Should regulators forbid (or tax more) some (or all) of this mechanisms markets will quickly resume to what they should be, places for people to invest mon…
I wouldn't call your views "left wing", just a bit ignorant of market theory, history, and practice. I mean, the Dutch Tulip Bubble was driven by derivatives (and in particular, a law change forced by the politically connected that retroactively changed some future contracts into option contracts), so if you're looking for some halcyon age prior to "complex products", bailouts, and people using lobbying to reap outsi…
It might a question of point of view. Maybe you focus more on tulip frenzy financial opportunities while I focus more on people that have been burned by it...
And yeah if you want to trace it back to 1500 no problem with that, old does not always equal good. It like copyright laws written prior to widespread of computers. Is it right to let them unchanged because they are old while humankind could technically share knowledge and arts at a scale never envisioned just 10 years ago?