Journal
JOURNAL OF POLICY MODELING
Volume 32, Issue 1, Pages 64-80Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jpolmod.2009.10.001
Keywords
Growth; Long run; Projections; Human capital; Cohorts
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This paper develops and applies a simple conditional growth framework to make long-term GDP projections for the world economy, taking as a starting point the recent empirical evidence about the drivers of existing cross-country income disparities. Human capital is projected by cohorts, and allowance is implicitly made for the impact of ageing and potential labour market and pension reforms on employment growth. Leaving aside deeper sources of uncertainty such as model and parameter uncertainty, projections are found to be sensitive to future economic policies in the areas of education, pensions, tabour markets and climate change mitigation, and even more so to total factor productivity and population trends. A baseline scenario projects fairly stable world GDP growth of about 3.5% annually on average (in PPP terms) over 2005-2050. (C) 2009 Society for Policy Modeling. Published by Elsevier Inc. All rights reserved.
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