Suppose you were asking: what is the binding constraint to animals thriving in the Sahara desert? This is not unlike the question of what limits economic growth in a country. However, in the Sahara, it is instructive to note that of those few animals that do thrive in that environment, a very large proportion are camels and a very small proportion are hippopotamus. The fact that the animals most intensive in the use of water, hippopotamus, are scarce while the animals least intensive in the use of water, camels, are thriving suggests that the supply of water may be a binding constraint to the spread of animals in the Sahara.
In general, the idea is that looking at the nature of the most successful parts of the economy can be informative of the constraints that affect others. We would expect to observe that those who are either structurally less intensive in the constrained factor, or at least more able to bypass it, will be doing comparatively well. Conversely, those sectors most intensive in the constraint will be doing relatively poorly.
Wednesday, September 10, 2008
A Must Read Manual
A manual for growth diagnostics;