My research is far from complete but my concentration has been on the Shanghai-HongKong stock connect that happened in 2014 that introduced a different settlement cycle to HongKong investors which comprised of a T+0 equities settlement period and a T+1 funds settlement period as opposed to the T+2 previously established at the HongKong Exchange.
I am also looking forward to seeing how the changes the SEC in US to T+2 settlement scheme for both funds and equities will pan out for the those involved.
The ASX in Australia is a also special interest because their system is settlement system is automated to a certain extent.
It however goes without saying that there are risks involved like rampant speculative behavior experienced in the A-share Chinese market in the early to mid 90s that got out of hand. But one of the key benefits of the T+0 was an increased level of liquidity in the market. This implies an increase in trading frequency and possibly in risk appetite as well depending on strategies.
My thinking is that it would impact the Kenyan market differently, i am not sure exactly how.
This is however just froth, i am still digging