Did you read the article on wikipedia? Start from the heading "Concept". https://en.wikipedia.org/wiki/Keynesian_economics#Concept https://en.wikipedia.org/wik

Did you read the article on wikipedia? Start from the heading "Concept". https://en.wikipedia.org/wiki/Keynesian_economics#Concept https://en.wikipedia.org/wiki/Keynesian_economics#Concept Supply side economics is not based on wage levels at all, but rather based on tax-based disincentives to employment and investment. https://en.wikipedia.org/wiki/Supply-side_economics https://en.wikipedia.org/wiki/Supply-side_economics