I don't know, but there is often quality of work comes into question.
Businesses who look to offshore expect it to be cheap, they often find that cheap doesn't mean good. Good offshore may cost a similar amount to good onshore. Offshore may be be unsocial hours for local time.
There's also often a cost of the business decision makers taking a jolly trip to the offshore location to see their offices (no idea why this is needed), if telecommuting doesn't work well enough to trust the remote office, why go there?
Businesses who look to offshore expect it to be cheap, they often find that cheap doesn't mean good. Good offshore may cost a similar amount to good onshore. Offshore may be be unsocial hours for local time.
There's also often a cost of the business decision makers taking a jolly trip to the offshore location to see their offices (no idea why this is needed), if telecommuting doesn't work well enough to trust the remote office, why go there?