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Physical Sciences and Mathematics Commons™
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Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
System Dynamics Implementation Of A Model Of Population And Resource Dynamics With Adaptation, Takuro Uehara, Yoko Nagase, Wayne Wakeland
System Dynamics Implementation Of A Model Of Population And Resource Dynamics With Adaptation, Takuro Uehara, Yoko Nagase, Wayne Wakeland
Systems Science Faculty Publications and Presentations
We build and analyze a dynamic ecological economic model that incorporates endogenous innovation on input substitutability. The use of the system dynamics method allows us to depart from conventional equilibrium thinking and conduct an out-of-equilibrium (adaptation) analysis. Simulation results show that while improvement in input substitutability will expand an economy, this change alone may not improve sustainability measured by indicators such as utility-per-capita and natural resource stock. It could, however, be possible that in combination with other technological progress, improvement in input substitutability will contribute to sustainable development. Sensitivity analysis also indicates a possible complication with the use of exogenous …
The Solutions Generation, Robert Costanza
The Solutions Generation, Robert Costanza
Institute for Sustainable Solutions Publications and Presentations
The Arab Spring, and more recently the Occupy movement, are both indications of growing dissatisfaction with the world?s current plight, especially among the younger generation, who see diminished hope for the future. Anger and protests can be an effective way of bringing the current system into question, and even toppling the existing regime, but they do little by themselves to lead the way to a better future. For that, we need a compelling shared vision and a focus on real solutions.
A Fair Share Of The Information Commons, Ida Kubiszewski, Robert Costanza
A Fair Share Of The Information Commons, Ida Kubiszewski, Robert Costanza
Institute for Sustainable Solutions Publications and Presentations
In this chapter we discuss the special characteristics of information as a type of commons that needs special institutions to manage its production and use effectively and create greater overall economic efficiency, social justice and ecological sustainability. These methods include monetary prizes, publicly funded research from which the produced information is released into the public domain, and status driven incentive structures like those in academia and the open-source community.
Building A Sustainable And Desirable Economy-In-Society-In-Nature, Robert Costanza, Gar Alperovitz, Herman E. Daly, Joshua C. Farley, Carol Franco, Tim Jackson, Ida Kubiszewski, Juliet Schor, Peter A. Victor
Building A Sustainable And Desirable Economy-In-Society-In-Nature, Robert Costanza, Gar Alperovitz, Herman E. Daly, Joshua C. Farley, Carol Franco, Tim Jackson, Ida Kubiszewski, Juliet Schor, Peter A. Victor
Institute for Sustainable Solutions Publications and Presentations
This report is a synthesis of ideas about what this new economy-in-society-innature could look like and how we might get there. Most of the ideas presented here are not new. The coauthors of this report have published them in various forms over the last several decades, and many others have expressed similar ideas in venues too numerous to mention. What is new is the timing and the situation. The time has come when we must make a transition. We have no choice. Our present path is clearly unsustainable. As Paul Raskin has said, "Contrary to the conventional wisdom, it is …
Needed: The Solutions Generation, Robert Costanza
Needed: The Solutions Generation, Robert Costanza
Institute for Sustainable Solutions Publications and Presentations
The author argues on the need for a shared vision and focus in solving fundamental problems facing the U.S. He suggests that people should design new political and economic systems that can create shared prosperity without increasing their demands on a finite environment. The author comments that people should vision a refocus on the goal of sustainable human well-being instead of maximizing conventional economic production and consumption.
Ecosystem Health And Ecological Engineering, Robert Costanza
Ecosystem Health And Ecological Engineering, Robert Costanza
Institute for Sustainable Solutions Publications and Presentations
Ecosystem health is a desired endpoint of environmental management and should be a primary design goal for ecological engineering. This paper describes ecosystem health as a comprehensive, multiscale, measure of system vigor, organization and resilience. Ecosystem health is thus closely linked to the idea of sustainability,whichimplies theabilityofthesystemtomaintainits structure(organization)andfunction (vigor) over time in the face of external stress (resilience). To be truly successful, ecological engineering should pursue the broader goal of designing healthy ecosystems, which may be novel assemblages of species that perform desired functions and produce a range of valuable ecosystem services. In this way ecological engineering can achieve its …