The business environment is a marketing term and refers to factors and forces that affect a firm's ability to build and maintain successful customer relationships. The business environment has been defined as "the totality of physical and social factors that are taken directly into consideration in the decision-making behaviour of individuals in the organisation."

Microcredit is the extension of very small loans (microloans) to impoverished borrowers who typically lack collateral, steady employment, or a verifiable credit history. It is designed to support entrepreneurship and alleviate poverty. Many recipients are illiterate, and therefore unable to complete paperwork required to get conventional loans. As of 2009 an estimated 74 million people held microloans that totaled US$38 billion. Grameen Bank reports that repayment success rates are between 95 and 98 percent.

In mass communication, the Hierarchy of Influences, formally known as the Hierarchical Influences Model, is an organized theoretical framework introduced by Pamela Shoemaker & Stephen D. Reese. It comprises five levels of influence on media content from the macro to micro levels: social systems, social institutions, media organizations, routine practices, and individuals. This framework was introduced in their book Mediating the Message: Theories of Influences on Mass Media Content.

Microsociology is one of the main levels of analysis of sociology, concerning the nature of everyday human social interactions and agency on a small scale: face to face. Microsociology is based on interpretative analysis rather than statistical or empirical observation, and shares close association with the philosophy of phenomenology. Methods include symbolic interactionism and ethnomethodology; ethnomethodology in particular has led to many academic sub-divisions and studies such as microlinguistical research and other related aspects of human social behaviour. Macrosociology, by contrast, concerns the social structure and broader systems.

Microfinance is a category of financial services targeted at individuals and small businesses who lack access to conventional banking and related services. Microfinance includes microcredit, the provision of small loans to poor clients; savings and checking accounts; microinsurance; and payment systems. Microfinance services are designed to be more affordable to poor and socially marginalized customers and to help them become self-sufficient.

Microelectromechanical systems is the technology of microscopic devices, particularly those with moving parts. It merges at the nano-scale into nanoelectromechanical systems (NEMS) and nanotechnology. MEMS are also referred to as micromachines in Japan, or micro systems technology (MST) in Europe.