Supply-side economics is the theory that lower taxes, less regulation of businesses, and free trade stimulate production and improve a country's economy.
Economists who favor the theory of supply-side economics believe that if there are more goods and services, the economy will grow — and that the best way to boost production is to lower taxes, especially on wealthy people and businesses. In other words, the concept focuses on supply, rather than demand. Critics of supply-side economics argue that cutting taxes only increases the wealth of a minority, without boosting incomes and employment for most people.