Bitcoin or any crypto currency is not something that could be shut down, no matter what you do. All the countries in the whole world come up with a ban that will stop all exchanges and all miners and everything in between and basically make it illegal to even own bitcoin and even after that bitcoin will still live as long as it runs on a single computer.
Considering they can only slow down bitcoin by doing that and dropping the price there is absolutely no logical way to shut down at all. You can't just take out wallets and close all computers that ever had bitcoin related things on them, its not possible, you can't even do that for small coins let alone something as big as bitcoin. Which clearly shows that Joseph Stiglitz has no idea how bitcoin works at all and should not be cared about at all.
Even if they place a ban on it, how would they be able to trace the user of the cryptocurrency, this is where satoshi really made them handicapped, he must really bean intelligent man and for this reason, he will never show his face so that government and enemies of cryptocurrency will not get him arrested or killed.
There is no way they can stop cryptocurrency, even china that tried banning his miners recently could not succeed in doing so, and probably reason why they have not said anything about it again, which absolutely means they will have no choice than to regulate it.