Politi, Dimitra; Weil, David N.; Feyrer, James - School of Economics, University of Edinburgh - 2011
Iodine deficiency is the leading cause of preventable mental retardation in the world today. Iodine deficiency was common in the developed world until the introduction of iodized salt in the 1920’s. The incidence of iodine deficiency is connected to low iodine levels in the soil and water. We...
