What would happen if stock markets were open 24 hours? Suppose you are a broker or a trader, and the stock markets will be open 24 hours a day.

What would be the implication for you as a broker in this scenario? 
I mean:


How will your strategies change?
Will it be more difficult or easier to trade?
What algorithms that you know that would have to be adjusted in this scenario?
You would have trading teams who work shifts like any other 24-hour business areas. 

The power market is open 24-7; many companies have around-the-clock trading teams. A lot of analysis and other work that can be done in the daytime is still done in the daytime. 

A major source of income during nighttime - in the power market - is just being there and executing trades - when other people are not there. I think that is the main change, that liquidity would shrink and give more arbitrage opportunities.