Over the past couple of months, I have worked for the
Copenhagen Consensus Center, writing two studies on nutrition. Their approach is to complete benefit to
cost ratios, after a long process of consultation on
priority areas. In other words, for
every dollar spent on this intervention, x dollars of benefit will result. In
Bangladesh, they hired a variety of analysts to calculate 75 such ratios. The
Economist provides a summary of this work.
I am not naturally prone to such an analysis. The world is complex, so how can we boil it
down to one number? It smacks of a
technocratic, top down approach to development that often harms more than it
helps. However, I’m emerging from the
exercise with some positive views, primarily after seeing the types of
interventions prioritized after the exercise.
I developed my most upbeat opinions of the exercise during a
nutrition conference jointly organized by the Copenhagen Consensus Center with local partners. My two papers analyzed what we might
consider the most basic and proven nutrition interventions, primarily
consisting of supplements for pregnant women and for infants in their first
1,000 days. As part of the dissemination
of this and other nutrition research, the conference brought together many members of the
nutrition community in Bangladesh, including the Minister and Secretary of the
Ministry of Health and Family Welfare.
What became clear in this meeting is that the government and many of the
nutrition champions are trying to take a holistic approach to addressing
nutrition that fails to prioritize interventions. Unfortunately, the implementation record is generally poor.
I view the logic of the cost benefit analysis as appropriate
for nutrition in Bangladesh in two ways.
First, as mentioned, a more focused approach on a few priority steps is
needed. The combination of a laundry
list of actions and poor implementation rationally points to the need for
prioritization. Second, the types of
interventions that emerge from the exercise tend to fit the limited
implementation capacity of governments such as in Bangladesh. While nutrition education in schools would be
wonderful, the quality of primary education is quite poor; I don’t see how this
can be implemented effectively in this context.
Similarly, I’m unclear how poorly trained and often absent health
workers can implement complex behavioral change such as breastfeeding practices. But providing iron folate supplements to pregnant women seems a more feasible task.
Of course, all of this must be negotiated with the local
political context. If performance is a
measure, nutrition has not been a consistently high priority for the Government
of Bangladesh. But the current approach
of demanding 100 different nutrition actions, forming high level nutrition
committees that never seem to meet, and fighting between ministries regarding
the lead for nutrition is not proving productive.
That said, I would highlight four limitations to a cost
benefit analysis: the difficulty in standardizing assumptions, sensitivity to
small estimate changes, and the lack of focus on distributional and other
concerns, and the reality of implementation. On the first, the analyses
should use similar assumptions and approaches for calculating the costs and
benefits to be comparable, but this is nearly impossible to do in a context
with scarce data. As such, a variety of
approaches were used in the Copenhagen Consensus exercise. For example, my papers used international
estimates of the costs based on the input prices, and not on existing programs
in Bangladesh; other programs had such information. This point was highlighted in the Economist
article.
Second, the estimates are highly sensitive to small changes,
meaning that we should not have too much confidence in the results. For example, the analyses often multiply three
approximations to find a benefit, then divide by an approximation of the cost. Something like the use of an exchange rate
from different years can yield large changes in the final ratio.
Third, cost benefit analyses take a neutral position
regarding social values, such as the distributional effects of the
interventions. An intervention achieves
the same value whether it increases the wealth of a rich person by $5 or a poor
person by $5. As such, programs focused
on the ultra poor, which generally do not yield huge financial outcomes, do not
end up on top. Similarly, the financial
value of a program does not necessarily include a social value, such as
preventing the exploitation of women through child marriage. While an analysis could attempt to provide
for such a valuation, it would further amplify the approximations, putting an
estimated social value on such factors.
Fourth, it is difficult to know how accurately the analyses would
reflect the costs and benefits of large-scale programs in Bangladesh, given the
numerous implementation concerns. Prime amongst these is that institutions vary
dramatically in their capabilities, which would influence both the benefits and
the costs. Programs may face rampant
corruption. Or their staff may lack the skills
to implement complex interventions. As
such, I didn’t hope to provide an accurate representation of the likely costs
and benefits if the Government of Bangladesh allocated further funds. Instead, my hope was to use the analysis to
show the likely costs and benefits based on a decent implementation of
nutrition programs, i.e. if the government would get their act together to
organize an effective nutrition service delivery system. Unfortunately, it might be interpreted as the
need to allocate further resources to nutrition, when the government only spends
a fraction of the currently allocated resources.
One final note relates to advocacy for research. The project was very smart in hiring local
staff with excellent connections, and inviting many of the right people to
attend meetings. However, many
conversations have only just begun; to be truly effective, these must be
ongoing, where a local institution continues to engage government and other
stakeholders.
p.s. My two papers covered interventions that were selected among the top priorities for Bangladesh. They can be seen here:
https://drive.google.com/folderview?id=0B8ly6oGPuGCRdldIODZraE9oYTQ&usp=sharing
p.s. My two papers covered interventions that were selected among the top priorities for Bangladesh. They can be seen here:
https://drive.google.com/folderview?id=0B8ly6oGPuGCRdldIODZraE9oYTQ&usp=sharing