Government Spending and Financially Sustainable Growth

Private and public exogenous expenditures have different impacts on the sectoral balances. The same rate of growth in income has varying implications for the domestic private sector’s financial balance (saving minus investment or, equivalently, disposable income minus private spending) depending on the composition of the demand driving that growth. An increase in private investment pushes the private sector toward deficit. Even though the investment boosts income, saving will not rise as much as investment because of leakage to taxes and imports. In contrast, government spending adds income and saving for a given level of investment. An implication is that growth driven by private expenditure that occurs without compensating growth in government spending pushes the private sector into deficit except to the extent that net exports counter the effect.

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Significance of MMT for Progressives and the Left

Demands on time in the MMT community include (i) providing “simple as possible” explanations of “basic MMT” for public consumption and (ii) exploring theoretical and policy ideas informed by an understanding of those basics together with insights from related approaches to economics. Although the latter task is perhaps more enticing for those who have by now (mostly) absorbed the basics, and is certainly an area worthy of pursuit, the former task remains politically pressing and so equally deserving of time. It doesn’t matter what progressive policies, institutional reforms or plans can be devised if the public believes they are “unaffordable because the nation is bankrupt” or “impossible because capitalists won’t stand for them”. This indoctrination has occurred over decades and clearly many in the community are not freeing themselves of it easily.

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Liberty, At Least For Now, Requires Government

Like many, I embrace the liberal motto “live and let live”. Individuals should be free to think, say and do as they please provided it doesn’t infringe on the liberty of others to do likewise. But living up to this motto does not necessarily call for small or minimal government, especially in the economic sphere. Until individuals are, of their own volition, ready to make use of real resources in a cooperative and harmonious fashion, promotion of liberty requires government.

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