Infrastructure improvements are more important to Keynesian economics than to supply-side economics.
Infrastructure improvements and human capital development are at the heart of supply-side economics.Keynesian economics deals primarily with stimulating or contracting aggregate demand.

Question

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While infrastructure improvements and human capital development can be important for supply-side economics as a way to increase long-term productivity, they are not the central focus of the philosophy. Supply-side economics emphasizes reducing barriers to production and increasing incentives for investment as the keys to economic growth. On the other hand, Keynesian economics places a greater emphasis on government intervention in the economy to stimulate demand during recessions or depressions. Infrastructure improvements may be seen as a way to boost demand in the short-term under Keynesian theory, but they are not as central to the philosophy as they are for supply-side economics.

Infrastructure Improvements Are More Important to Keynesian Economics Than to Supply-Side