Group 1 - The article discusses the ongoing debate between demand-side and supply-side economics, emphasizing that both are important but often oversimplified in policy discussions [1][2][4] - It highlights the historical context of Keynesian economics and its application during the Great Depression, suggesting that Keynes' ideas have been misinterpreted over time [4][6][7] - The article critiques modern interpretations of Keynesianism, noting that many contemporary economists have lost sight of the complexities of economic systems, leading to ineffective policies [9][11][12] Group 2 - The rise of supply-side economics in the late 20th century is presented as a reaction to perceived failures of Keynesian policies, with a focus on tax cuts and deregulation [11][12][21] - The article argues that both demand-side and supply-side approaches have failed to address the underlying issues in the U.S. economy, particularly the decline of manufacturing and rising inequality [12][21][22] - It concludes that superficial policy measures, such as tariffs and tax cuts, do not address the foundational elements necessary for a robust economy, leading to ongoing challenges in the manufacturing sector [22][24]