Productivity versus welfare: or, GDP versus Weitzman's NDP
How should productivity and welfare be measured when the composition of the capital stock is shifting towards assets with shorter lives? What sort of adjustment, if any, should be made for depreciation? While GDP is still appropriate as a measure of output, in this paper it is argued that NDP (WNDP)-nominal net domestic product deflated by the price index for consumption-is the appropriate measure of welfare. The rate at which the WNDP frontier is shifting out over time is analogous to the rate of growth of aggregate total factor productivity (TFP). Like the latter, it may be decomposed into the contributions made by TFP growth in individual industries, though with a different pattern of weights. The argument is illustrated by the experience of the United States in the 1990s. Here net investment increased more rapidly than gross investment and both grew faster than GDP, while the aggregate depreciation rate rose. Nevertheless the aggregate capital stock grew more slowly than GDP, and depreciation as a proportion of GDP was flat. Both official NDP and WNDP have been growing a little more slowly than GDP. But the acceleration of WNDP post 1995 was as great as that of GDP. Also, the rise in the growth rate of the WNDP frontier was equal to that of aggregate TFP.
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- Whelan, Karl, 2003.
" A Two-Sector Approach to Modeling U.S. NIPA Data,"
Journal of Money, Credit and Banking,
Blackwell Publishing, vol. 35(4), pages 627-56, August.
- Karl Whelan, 2001. "A two-sector approach to modeling U.S. NIPA data," Finance and Economics Discussion Series 2001-04, Board of Governors of the Federal Reserve System (U.S.).
- Karl Whelan, 2003. "A two-sector approach to modeling U.S. NIPA data," Open Access publications 10197/203, School of Economics, University College Dublin.
- Bradford, David F, 1990. "Extended Accounts for National Income and Product: Comment," Journal of Economic Literature, American Economic Association, vol. 28(3), pages 1183-86, September.
- Oulton, Nicholas, 2001.
"Must the Growth Rate Decline? Baumol's Unbalanced Growth Revisited,"
Oxford Economic Papers,
Oxford University Press, vol. 53(4), pages 605-27, October.
- Nicholas Oulton, 2000. "Must the growth rate decline? Baumol's unbalanced growth revisited," Bank of England working papers 107, Bank of England.
- Weitzman, Martin L, 1997. " Sustainability and Technical Progress," Scandinavian Journal of Economics, Wiley Blackwell, vol. 99(1), pages 1-13, March.
- Hasan Bakhshi & Jens Larsen, 2001. "Investment-specific technological progress in the United Kingdom," Bank of England working papers 129, Bank of England.
- John Forth, 2001. "The low-paid worker and the low-paying employer: characterisations using WERS98," NIESR Discussion Papers 179, National Institute of Economic and Social Research.
- Scott, Maurice, 1990. "Extended Accounts for National Income and Product: A Comment," Journal of Economic Literature, American Economic Association, vol. 28(3), pages 1172-79, September.
- Dale W. Jorgenson & Kevin J. Stiroh, 2000.
"Raising the Speed Limit: US Economic Growth in the Information Age,"
OECD Economics Department Working Papers
261, OECD Publishing.
- Dale W. Jorgenson & Kevin J. Stiroh, 2000. "Raising the Speed Limit: U.S. Economic Growth in the Information Age," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 31(1), pages 125-236.
- M. L. Weitzman, 1974.
"On the Welfare Significance of National Product in Dynamic Economy,"
125, Massachusetts Institute of Technology (MIT), Department of Economics.
- Martin L. Weitzman, 1976. "On the Welfare Significance of National Product in a Dynamic Economy," The Quarterly Journal of Economics, Oxford University Press, vol. 90(1), pages 156-162.
- MartinNeil Baily & Robert Z. Lawrence, 2001.
"Do We Have a New E-conomy?,"
American Economic Review,
American Economic Association, vol. 91(2), pages 308-312, May.
- Heal, G., 1998. "Valuing the Future: Economic Theory and Sustainability," Papers 98-10, Columbia - Graduate School of Business.
- Greenwood, Jeremy & Hercowitz, Zvi & Krusell, Per, 1997.
"Long-Run Implications of Investment-Specific Technological Change,"
American Economic Review,
American Economic Association, vol. 87(3), pages 342-62, June.
- Greenwood, J. & Hercowitz, Z. & Krusell, P., 1995. "Long-Run Implications of Investment-Specific Technological Change," UWO Department of Economics Working Papers 9510, University of Western Ontario, Department of Economics.
- Greenwood, J. & Hercowitz, Z. & Krusell, P., 1996. "Long-Run Implications of Investment-Specific Technological Change," RCER Working Papers 420, University of Rochester - Center for Economic Research (RCER).
- John Kay, 2001. "What became of the New Economy?," National Institute Economic Review, National Institute of Economic and Social Research, vol. 177(1), pages 56-69, July.
- Susanto Basu & John G. Fernald, 1997.
"Aggregate productivity and aggregate technology,"
International Finance Discussion Papers
593, Board of Governors of the Federal Reserve System (U.S.).
- Fisher,Franklin M. & Shell,Karl, 1998. "Economic Analysis of Production Price Indexes," Cambridge Books, Cambridge University Press, number 9780521556231, April.
- Hulten, Charles R. & Wykoff, Frank C., 1981. "The estimation of economic depreciation using vintage asset prices : An application of the Box-Cox power transformation," Journal of Econometrics, Elsevier, vol. 15(3), pages 367-396, April.
- Martin L Weitzman, 1999.
"A Contribution to the Theory of Welfare Comparisons,"
Harvard Institute of Economic Research Working Papers
1864, Harvard - Institute of Economic Research.
- Martin L. Weitzman, 1999. "A Contribution to the Theory of Welfare Comparisons," NBER Working Papers 6988, National Bureau of Economic Research, Inc.
- Caves, Douglas W & Christensen, Laurits R & Diewert, W Erwin, 1982. "Multilateral Comparisons of Output, Input, and Productivity Using Superlative Index Numbers," Economic Journal, Royal Economic Society, vol. 92(365), pages 73-86, March.
- Michael R. Pakko, 2001.
"What happens when the technology growth trend changes?: transition dynamics, capital growth and the "new economy","
2001-020, Federal Reserve Bank of St. Louis.
- Michael R. Pakko, 2002. "What Happens When the Technology Growth Trend Changes?: Transition Dynamics, Capital Growth and the 'New Economy'," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 5(2), pages 376-407, April.
- Sefton, J. A. & Weale, M. R., 1996. "The net national product and exhaustible resources: The effects of foreign trade," Journal of Public Economics, Elsevier, vol. 61(1), pages 21-47, July.
- Hicks, J. R., 1975. "Value and Capital: An Inquiry into some Fundamental Principles of Economic Theory," OUP Catalogue, Oxford University Press, edition 2, number 9780198282693, December.
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