Topics: Economics and Personal Finances, Socioeconomic Class. 1  Richard Fry is a senior researcher focusing on economics and education at Pew Research Center. 2  Rakesh Kochhar is an associate director of research at Pew Research Center.
Behavior (American English) or behaviour (Commonwealth English) is the range of actions and mannerisms made by individuals, organisms, systems, or artificial entities in conjunction with themselves or their environment, which includes the other systems or organisms around as well as the (inanimate) physical environment.
The term Least Developed Countries (LDCs) describes the world's poorest countries with following 3 criteria: Low-income criterion based on a three-year average estimate of the gross national income (GNI) per capita (under $750 for inclusion, above $900 for graduation). Human resource weakness criterion.