Explanation:

The Global Hunger Index (GHI) is designed to comprehensively measure and track hunger globally and by country and region. Calculated each year by the International Food Policy Research Institute (IFPRI).

To reflect the multidimensional nature of hunger, the GHI combines the following four component indicators into one index:

Undernourishment: the proportion of undernourished people as a percentage of the population (reflecting the share of the population insufficient;

Child wasting: the proportion of children under the age of five who suffer from wasting (that is, low weight for their height, reflecting acute undernutrition);

Child stunting: the proportion of children under the age of five who suffer from stunting (that is, low height for their age, reflecting chronic undernutrition); and

Child mortality: the mortality rate of children under the age of five (partially reflecting the fatal synergy of inadequate nutrition and unhealthy environments).