Is there a way to create a link with cognitive impairments averted with educational achievement and GDP?
That’s actually not a particularly difficult challenge. I’ve had to do that myself with iron. For iron what you do is link a series of studies together to make the inferences, and luckily for iron, we’re now getting some longitudinal studies of iron completed. When you get these types of studies the information is very clear. We read, for instance, of the Institute of Nutrition of Central America and Panama(INCAP) studies where the kids get supplemented and 25 years later, we can see that some are taller and some are shorter and some are more likely to have jobs and all of those types of things. So if you have longitudinal studies, it really helps to validate the assumptions if you have to link together a series of cross-sectional studies. For iodine we don’t have those longitudinal studies, because iodine has mostly been used to fortify and not to supplement, and so it’s harder to find control groups. In the labour market, are health outcomes in the developing world the greatest facto
