Original sentence: " However, in other cases, particuarly in poor countries, unsuccessful privatizations cannot be so easily undone.In cases were privatization has been successful, it is because genuine competition has arisen.On the other hand, private owners do have such an incentive: they will lose money if businesses are poorly run.One of them, (Connex), actually had its franchise cut short in June 2003 by the government for what the Strategic Rail Authority called "poor financial management.This seems to have been the case with rail privatization in the UK and New Zealand; in both countries, government intervention has become necessary
Edited sentence: However, in other cases, particuarly in poor countries, unsuccessful privatizations cannot be so easily undone.In the few cases were privatization has been successful, it is because genuine competition has arisen.On the other hand, private owners do have such an incentive — they will lose money if businesses are poorly run.This seems to have been the case with rail privatization in the UK and New Zealand; in both countries, Government intervention has become necessary