One benefit of multiple exchanges is that company owners can choose to offer trading of shares of the company they own on whichever exchange they think would do their company best.
Some people in this thread have expressed that they think a discrete-time market (where trades are executed at certain time ticks, instead of continually) would be beneficial. If these people were to IPO their company, they could choose exchanges that use this approach.
Some people in this thread have expressed that they think a discrete-time market (where trades are executed at certain time ticks, instead of continually) would be beneficial. If these people were to IPO their company, they could choose exchanges that use this approach.