For this discussion, please cover the recent, significant development in the listing of international stocks in one (exclusively) one or (likely) more leading internationally famous stock exchanges. This was covered quite extensively by leading publications such as the Wall Street Journal, The Financial Times of London, CNBC, etc., in recent days.

First, briefly summarize the listing requirements in one of the leading US stock markets and also in any one of the leading stock markets in another developed country, and then state your views/opinion, with some justification/data, as to the perceived or actual advantages or disadvantage of such listing (in the US or in another country).

Be sure to also indicate which international companies instigated this event, and WHY?