The one-sector Solow–Ramsey model is the most popular model of longrun economic growth. This paper argues that a two-sector approach, in which technological progress in the production of durable goods exceeds that in the rest of the economy, provides a far better picture of the longrun behavior of the U.S. economy. The paper shows how to use the twosector approach to model the real chain-aggregated variables currently featured in the U.S. National Income and Product Accounts. It is shown that each of the major chain-aggregates—output, consumption, investment, and capital stock—will tend in the long run to grow at steady, but different, rates. Implications for empirical analysis based on these data are explored.


Additional Information

Print ISSN
pp. 627-656
Launched on MUSE
Open Access
Archive Status
Archived 2007
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