Elastic (goods and services)

Elastic goods and services generally have plenty of substitutes. Inelastic goods have fewer substitutes and price change doesn't affect quantity demanded as much. Some inelastic goods include gas, electricity, water, drinks, clothing, tobacco, food, and oil.

Food Insecurity

The state of being without reliable access to a sufficient quantity of affordable, nutritious food. During the first decade of this century, more than 800 million people live every day with hunger or food insecurity as their constant companion (see also National Academy of Science definitions).

Stunted growth

Stunted growth also known as stunting and nutritional stunting, is a reduced growth rate in human development, characterized by a low height for one's age. It is a primary manifestation of malnutrition (or more precisely undernutrition) and recurrent infections, such as diarrhea and helminthiasis, in early childhood and even before birth, due to malnutrition during fetal development brought on by a malnourished mother. An estimated 162 million children under 5 years of age, or 25%, were stunted in 2012 (Source: Wikipedia).