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.
US Economy. Definition: Aggregate demand is the overall demand for all goods and services in an entire economy. It's a macroeconomic term that describes the relationship between everything bought within a country and prices. Everything purchased in a country is the same thing as everything produced in a country.