Well I got the gist and was hoping for this measures since long, like direct account to tax and lower denomination currency, am applauding big and bold move by government, this will certainly flush out black money for now, but with regard to introduction of higher currency again, I don't see hoarding not happening again in future, after all just swapping of currency with newer notes doesn't helps in chaging mind set of Indian in carrying our there business .
They are leaving the same loop hole, and am seeing it getting exploited again, when they have taken such drastic measure they could have gone complete Robinhood, with JDY pm has already issued million of accounts with debit card, Internet is improving withing country, with drastic measure such as completely shunning 500 and above would have lead toward more drastic reforms, such are more acceptance of digitized trackable payments.
Nevertheless, am not an economic expert, and sure PM would have consulted top notch economic experts on this, am just hoping and praying for the intention for which this started shall continue.