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Timber Supply Model 96: A Global Timber Supply Model with a Pulpwood Component

Listed author(s):
  • Sedjo, Roger


    (Resources for the Future)

  • Lyon, Kenneth

This study involves an update of our earlier Timber Supply Model, which was fully developed in our book, The Adequacy Of Global Timber Supply by Sedjo and Lyon (1990), published by Resources for the Future. The new version, called Timber Supply Model 1996 (TSM96), uses an economic market supply/demand approach to project an intertemporal time path of the world's price and output level of industrial wood. As did the original TSM, the TSM96 provides projections of the time path of the equilibrium output levels of the several regions into which the world has been subdivided. A major new feature of TSM96 is that industrial wood, treated as homogeneous in the earlier study, has be subdivided into two different wood types — pulpwood and solidwood. The supply of these two commodities is not independent. Rather they can be viewed as joint products in production. The study develops a base-case projection, which gives the authors' best judgment of the timber situation likely to develop over the next few decades. Over that period total industrial wood production increases from about 1.7 billion cubic meters to 2.3 billion cubic meters, an increase of about 35 percent, while global pulpwood production increases from about 700 million cubic meters in 1995 to about 1.325 billion in 2045. Pulpwood price shows a fairly substantial increase throughout the first one-third of the period, a more modest increase over the second third, and a slight decline during the last third. Solidwood prices are almost the inverse of pulpwood, declining over the first third of the decade, increasing slightly over the next third and increasing in the last third of the decade. Over the whole of the 50-year period overall price increases are 30 percent for pulpwood and only about 8 percent for solidwood.

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Paper provided by Resources For the Future in its series Discussion Papers with number dp-96-15.

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Date of creation: 01 Apr 1996
Handle: RePEc:rff:dpaper:dp-96-15
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  1. Sedjo, Roger & Sohngen, Brent, 1996. "A Comparison of Timber Models for Use in Public Policy Analysis," Discussion Papers dp-96-12, Resources For the Future.
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