Posts Tagged ‘micronutrients’

Book Review: Poor Economics

June 22nd, 2011

Poor Economics: A radical rethinking of the way to fight global poverty

By: Abhijit Banerjee and Esther Duflo

This is one of the best books I’ve read on addressing global poverty. And I’ve read a LOT of books on this topic. It summarizes a massive amount of primary in-the-field research and has lots of interesting finds which will surely challenge some of your assumptions on effective poverty programs. The authors founded Abdul Latif Jameel Poverty Action Lab in 2003. Also, there is a book website.

What works; not what you think should work

I was impressed with the authors’ focus on “what actually works” based on empirically validated experiments and data. This is very refreshing in a world where so many people approach poverty with pre-determined viewpoints. I particularly like how they compare, contrast and critique the two primary international development perspectives of “supply wallahs” (Jeff Sachs & co) and the “demand wallahs” (Bill Easterly & co). The authors (both economists) seek to test whether there are specific poverty traps (Sachs’ concept which Easterly contests) in specific situations. Their conclusion — sometimes there are and other times there aren’t. It just depends on the specific situation.

Similarly they critique the pessimism of both the political left and the right who (for different reasons — colonialism or unfortunate culture) think that political institutions in these countries must change first and they won’t. They look for pragmatic steps forward in both good and bad political regimes.

Progress generally comes incrementally and at the margins

They are not idealists. The authors are realists who believe that improvement comes incrementally at the margins. It is all about the small stuff which adds up. Much of what works isn’t “sexy” and therefore isn’t easy to raise donor money for. Some of the successful approaches they’ve discovered are counter-intuitive at first and many are far from perfect. But they are committed to taking a scientific approach and to judge things by their results and to learn as they go.

There are far too many excellent facts in this book to cover in a short review. So, I will call out a few as illustrative and recommend that you read the book for the full benefit.

Focus on testing specific interventions (with randomized controlled trials)

“This book will not tell you whether aid is good or bad, but it will say whether particular instances of aid did some good or not.” One of the big issues with aid is, how do we know what interventions are effective? or more effective than others?

Read Part II of book review >

Micronutrients into the food supply

March 26th, 2011

The Economist reported that when eight eminent economists were asked how they would spend $75 billion to most help the world, 5 of their top 10 recommendations involved nutrition including:

  • Vitamins for children
  • Adding zinc and iodine to salt
  • Breeding micronutrients into crops

Other recommendations included more girls’ schools and trade liberalization.

Of the 40 nutrients every person needs, four are in chronically short supply:  iron, zinc, iodine and Vitamin A.

Vitamin A is essential for the mucous membranes that protect the body’s organs, such as the eyes.  Lack of it causes half a million children to go blind every year; hal fo them die within a year as their other organs fail … Zinc deficiencies impairs brain and motor functions and causes roughly 400,000 deaths a year. Shortage of iron (anaemia) weakens the immune system and affects, in some poor countries, half of all women of child-bearing age.

Children with nutrient deficiencies do more poorly at school and have reduced earning potential.  Statistics also show that the malnourished also tend to marry each other continuing the cycle of under achievement and development.

The most common response is to attempt to hand out vitamin pills or fortify foods like salt with iodine. But the nutritional deficiencies persist, so there is a new exploration of whether getting the nutrients directly into the local food supply might be a better approach.

As the article points out, this approach is no panacea as it is difficult to influence the poor to buy (as most buy vs. grow their own food) the right kinds of foods especially if they cost more.  Some countries who have focused on increased agriculture value-added have decreased malnutrition (Malawi, Bangladesh and Vietnam) while others have the opposite result (Egypt, Guatemala and India).

What seems to matter is encouraging the right crops.  Common policies encouraging cheap grain have not helped.  These cereals provide calories, but are low on nutrients.  Policies which encourage consumption of vegetables, pulses and meats have much more nutrient benefits.

One key fact to keep in mind: Early intervention is critical as the first 1,000 days of malnutrition have the most damage.

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