However, for most, TFP growth rates had dramatically declined over years, calling for effort to maintain TFP growth.
Overall, 94% of TFP admissions were in Africa and children in Africa were significantly more likely to be admitted to TFP than those in Asia.
Experts therefore question Cameron's decision to expand the TFP.
Unfortunately TFP is much harder to measure than labour productivity.
Moreover, the TFP data, Portes pointed out, is not properly tested.
In fact, the TFP is far from the runaway success the government claims it is.
Portes, who repeated his criticisms of TFP on Monday morning, points out that although an evaluation has been commissioned of the TFP, its findings have yet to be published.
Indeed, India's TFP growth in farming has fallen since 1993, dragging down overall TFP growth because agriculture still employs a large share of the population.
The financial crisis may therefore reduce TFP growth in many rich countries.
The data on TFP show that it is struggling to do that.
We estimate two types of TFP indicator.
