Big Infrastructure projects - Hmmm



The future for Timor-Leste: a big new Port in Tibar, a new airport, new bridges over the Comoro river in Dili, 4-lane highways, large scale electrification, the Oecussi Social Market Economy Zone, Suai Supply Base and Port facility, etc, etc.

On hearing of this development agenda it feels like we are back in the days of the 1960s, when development was defined by multilateral support for big infrastructure projects - dams, airports, etc - as these were seen as the keys to development.

Many lessons were learned from that era, many failures documented.  Since then, and in the light of these lessons, development moved much more towards broad-based poverty alleviation, while still pursuing an agenda of economic growth.  There is much more that could be said about these lessons from history for what Timor-Leste faces now, but that is for another time.

Here I want to focus on how large scale projects are adopted.  Any large project should only proceed if a good economic and social case is made for it.  The economic argument looks at projected costs of the project, and then the long term projected benefits, and projects need to have benefits that outweigh the costs.  Often this cost-benefit analysis is also used to rank possible projects and determine priorities for spending scarce resources.

Imagine the challenges of accurately forecasting these costs and benefits!  Take the proposed new port facility in Tibar, 10km to the west of Dili.  Consultants have been asked to project flows of containers in and out of Dili to the Year 2045, presumably as a basis for the need to build a new port facility.  The projections are also used to inform the scale of the new facility.

I do have some issues with the projections that form the business case.  Briefly, there are two concerns: the projections rely on very optimistic forecasts of growth in economic activity for the next 30+ years.  With the decline in oil revenue that will come over the next few years, growth in non-oil GDP will need to no longer rely on the government-stimulated economic activity that derives from royalties on the oil and gas revenue.  Projecting economic growth from the base of non-oil-revenue-driven economic activity, I forsee substantially slower economic growth than the forecasts used in the Tibar Port projections.  Secondly, the projections ignore balance of trade considerations.  Currently, Imports in Timor-Leste comprise more than 100% of non-oil GDP.  This is manageable now, because the foreign funds are raised via oil revenue.  But this cannot be sustained, and import volumes must fall as a % of GDP.  None of this is allowed for in the Tibar Port projections.


My best estimate is that the Tibar Port projections are about quadruple what they should be.  Not just a little optimistic, but 4 times the realistic levels (I am happy to provide details if you'd like to discuss further).  Hmmm.


In my next post I will write about some academic research into why costs are often underestimated and benefits overestimated in large scale infrastructure projects.