This paper summarizes the evidence on the evolution of transport PPPs over the last 15 years or so. In the process, it provides a primer on the associated policy issues, including of the central role of project finance in the implementation of PPP policies and the debates on risk allocation in...

The authors summarize the main lessons emerging from Argentina's experience, including universal service obligations in concession contracts. They discuss free-riding risks, moral hazard problems, and other issues that arise when social concerns are delegated to private operators. After...

The authors constructed a standard computable general equilibrium (CGE) model to explore the economic impact of increased spending on infrastructure in six African countries: Benin, Cameroon, Mali, Senegal, Tanzania, and Uganda. The basic elements of the model are drawn from EXTER, adjusted to...

In many countries, well-meant ad hoc tax incentives proliferate over time, creating an opaque corporate tax structure and many unanticipated tax loopholes. Tax authorities in several countries have considered and sometimes introduced minimum corporate taxes. Liability under such a tax is...

Economists often characterize the regulation of monopolies as a"game"(between the regulator and the service provider) in which the two players do not share the same information. The regulator is assumed to have poorer information than the service provider about the scope of future efficiency...

The authors show that the potential benefit to a host country of forward markets or of foreign exchange guarantees depend on the investor's country of origin and on specific characteristics of investment. They show this in terms of the effects on foreign-exchange risks and on the amount of...

It is commonly argued that when the benefits of an infrastructure service are mostly local and there is little scope for economies of scale - as in urban transit, road maintenance, water supply, and solid waste management - decentralization is the most effective way to deliver service. Those...

This paper presents a basic assessment of the financial performance of infrastructure service operators in developing countries. It relies on a new database of 120 companies put together to track the evolution of the cost of capital, the cost of equity and the return to equity for electricity,...

In reviewing contracts, establishing price limits, or arbitrating conflicts, regulatory agencies and policy advisors face significant information asymmetry in determining the appropriate allowed rate of return, or discount rate. The information gap is especially important in determining the...

The authors assess the macroeconomic and distributional effects of the privatization that Argentina began in 1989 in gas, electricity, telecommunications, and water and sanitation. Using a computable general equilibrium model, they track the effects of the changes observed between 1993, the...