But what are upsides are there for issuing traditional stock on a blockchain? This is what I'm trying to understand.
I don't know the advantage to companies, as I don't know enough about regular stock markets, but I imagine it will be a lot cheaper - for customers. That is, more money then is available for the investment.
The UK.gov's call for information, was on the back of two priorities: Achieving strong and sustainable economic growth and Making it easier for people to access and use financial services. The UK's budget appears to need for people to get into debt, so the Government is looking for alsorts of ways for people to spend what credit they have.
Blockchain shares could make shareholding practical to a wider audience.. just have to make it simple and accessible.
Perhaps there is more to it but I take it to be the same as providing any other financial service within the blockchains, it does away with the third party authority. Perhaps some regulation of stock will always exist but perhaps there are efficiency saving at least to be made.