Complex sentence: Private sector participation in financing infrastructure and managing services is widespread, but it is usually limited to Build-Operate-Transfer (BOT) contracts where the private sector is in charge of large upstream or downstream infrastructure without being directly involved in serving users.
Split into simpler sentences: Private sector participation in financing infrastructure and managing services is widespread. Its most common form are Build-Operate-Transfer (BOT) contracts where the private sector is in charge of large upstream or downstream infrastructure without being directly involved in serving users.