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Sustainability - Dynamics and Uncertainty (Paperback, Softcover reprint of the original 1st ed. 1998)
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Sustainability - Dynamics and Uncertainty (Paperback, Softcover reprint of the original 1st ed. 1998)
Series: Economics, Energy and Environment, 9
Expected to ship within 10 - 15 working days
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of ecological (also biological) variables b which interact in their
dynamic t evolution: det dbt dt = f (et, bt)' dt = 9 (et, bt)*
Among the solution paths to this interaction between economic and
ecologi cal variables, we look for those which are sustainable.
Sustainable paths are typically those along which the values of
certain key stocks are always pos itive, these key stocks being
important environmental resources. The types of paths on which
certain variables can be positive forever include station ary
solutions with appropriate positivity conditions, or limit cycles
or chaotic attractors satisfying the same positivity conditions.
These paths, and the paths which approach them, constitute the set
of sustainable paths. From amongst these we have to choose one or
more which are in some sense the best. Note that rather than
imposing positivity of certain stocks in the long run as a
condition for sustainability, we would prefer to derive this as a
characteristic of optimal solutions from more fundamental
judgements about the valuation of stocks and flows: this is the
route pursued by the papers in this volume. The introductory paper
by Heal in Section I reviews these matters in gen eral terms, not
going into technical details: it discusses the precedents for a
concept of sustainability in welfare economics, and reviews
alternative opti mality concepts and their connection to
sustainability.
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