Did you read the article on wikipedia? Start from the heading &quot;Concept&quot;.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Keynesian_economics#Concept" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Keynesian_economics#Concept</a><p>Supply side economics is not based on wage levels at all, but rather based on tax-based disincentives to employment and investment.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Supply-side_economics" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Supply-side_economics</a>