A project’s net stream of benefits and, hence, its NPV, is based on the assumption that the project functions as designed. The extent to which it does so depends not only on the quality of the design, but also on the incentives facing the various agents responsible for project implementation and on the costs and benefits that various groups in the society are likely to derive or incur from the project. The sustainability of a project relates intimately to its financial viability and to the distribution of project benefits. If the project requires monetary transfers for viability, analysts should estimate the magnitude and timing of the transfers.
In particular, the project’s fiscal impact is of crucial importance: one of
the common causes of unsatisfactory performance in World Bank-financed projects
is insufficient counterpart funds. Moreover, groups that derive a benefit from
the project will have an interest in its success, and those who lose because of
it will likely oppose it. The intensity with which gainers defend the project and losers attack it is related to the size of the
respective benefits and costs. Thus, in assessing a project’s sustainability,
it is helpful to identify (a) the various agents responsible for project
implementation, assessing whether each has the incentives required to make the
project work as designed, and (b) the various groups likely to gain or lose
from the project.
This section provides tools that are helpful in these endeavors.
We begin at the difference between economic and financial prices and economic
and financial flows. These differences represent rents or monetary flows that
accrue to someone other than the project entity. Taxes represent monetary flows
accruing to the government, but not to the project entity. Subsidies are
transfers in the other direction, from the government to the project entity. We
can identify winners and losers by decomposing the shadow prices used in
economic analysis and showing exactly how and why financial and economic prices
differ. We can also use the tools ofiation economic analysis to assess the
project’s fiscal impact, shed light on whether the project should be a public
or a private sector project, and decide if the
project is likely to contribute to the country’s welfare.
To illustrate how one uses the tools of economic analysis to answer these questions,
we turn to two examples. The first is a typical private sector project included
to show, among other things, how the tools help us decide that the private
sector should undertake the project. The example also shows a good
identification of the incremental costs and benefits of the project and of its
fiscal impact. The second example is based on a World Bank project in the
education sector and shows the application of most of the tools developed in
this blog.
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