The design of concession period for build-operate-transfer (BOT) projects is crucial to financial viability and completion risk management. A systematic analysis shows that concession period design involves the design of concession period structure, the determination of the concession period...

Since privately financed infrastructure (PFI) projects are usually natural monopolies, their tariffs should be regulated to ensure socially desirable outcomes. In reality, the regulation is usually realized through tariff adjustment mechanisms. There are four basic tariff adjustment frameworks...