In sociology

Sociology

Sociology is the study of society. It is a social science—a term with which it is sometimes synonymous—which uses various methods of empirical investigation and critical analysis to develop a body of knowledge about human social activity...

, precariat refers to people with no job security

Job security

Job security is the probability that an individual will keep his or her job; a job with a high level of job security is such that a person with the job would have a small chance of becoming unemployed.-Factors affecting job security:...

, or no prospect of employment. The term is a neologism obtained by merging precarious with proletariat

Proletariat

The proletariat is a term used to identify a lower social class, usually the working class; a member of such a class is proletarian...

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The precariat class has been emerging in advanced societies such as Japan, where it includes over 20 million people. The young precariat class in Europe became a serious issue in the early part of the 21st century.