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Effective Demand and Growth: An Analysis of the Alternative Closures of Keynesian Models

This paper presents a one-sector model where investment and autonomous expenditures determine the growth rate of income. The analysis starts with the dynamics of demand-led growth and the interaction between investment and autonomous expenditures. Since by definition investment determines the growth rate of capital, the paper uses the relation between demand-led growth, multifactor productivity growth, and labor-force growth to analyze the alternative closures of the supply side. After discussing how partially endogenous labor force and multifactor productivity may relax supply constraints, the paper shows how changes in the average propensity to save may accommodate investment and autonomous expenditures when the economy reaches its maximum growth rate. Since nothing prevents the functional distribution of income from changing before that happens, the paper concludes with a two-species model (for the labor share of income and the income-capital ratio) to illustrate how demand-led growth can generate business fluctuations while remaining below supply constraints.

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Paper provided by Schwartz Center for Economic Policy Analysis (SCEPA), The New School in its series SCEPA working paper series. SCEPA's main areas of research are macroeconomic policy, inequality and poverty, and globalization. with number 2001-05.

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Length: 26 pages
Date of creation: Dec 2001
Date of revision:
Handle: RePEc:epa:cepawp:2001-05
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  1. Rowthorn, R E, 1975. "What Remains of Kaldor's Law?," Economic Journal, Royal Economic Society, vol. 85(337), pages 10-19, March.
  2. Davidson, Paul, 1972. "Money and the Real World," Economic Journal, Royal Economic Society, vol. 82(325), pages 101-15, March.
  3. Anthony Philip Thirlwall, 1979. "The Balance of Payments Constraint as an Explanation of International Growth Rate Differences," BNL Quarterly Review, Banca Nazionale del Lavoro, vol. 32(128), pages 45-53.
  4. Romer, Paul M, 1986. "Increasing Returns and Long-run Growth," Journal of Political Economy, University of Chicago Press, vol. 94(5), pages 1002-37, October.
  5. John S. L. McCombie, 1983. "Kaldor's Laws in Retrospect," Journal of Post Keynesian Economics, M.E. Sharpe, Inc., vol. 5(3), pages 414-429, April.
  6. A. P. Thirlwall, 1983. "A Plain Man's Guide to Kaldor's Growth Laws," Journal of Post Keynesian Economics, M.E. Sharpe, Inc., vol. 5(3), pages 345-358, April.
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