At its simplest, biotechnology is technology based on biology - biotechnology harnesses cellular and biomolecular processes to develop technologies and products that help improve our lives and the health of our planet.
In macroeconomics, the focus is on the demand and supply of all goods and services produced by an economy. Accordingly, the demand for all individual goods and services is also combined and referred to as aggregate demand.
Definition of economics. 1a : a social science concerned chiefly with description and analysis of the production, distribution, and consumption of goods and servicesb : economic theory, principles, or practices sound economics. 2 : economic aspect or significance the economics of building a new stadium.