The Scappoose School District (SSD) in northwestern Oregon serves the City of Scappoose and the southeastern portion of Columbia County, as well as the extreme northwestern portion of Multnomah County and a...

We study problems in the stability of nonlinear ecological models and in the theory of collective motion in physical systems. We first establish criteria for global stability in deterministic nonlinear...

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...

Japan is facing a demographic crisis. The population is aging and shrinking at a considerable pace despite the government's efforts to curtail the problem. This rapid change in the demographic structure of...

This paper demonstrates the usefulness of the system dynamics approach to the development of ecological economics, the study of the interactions between economic systems and ecological systems. We build and...

Purpose: In the context of modernization and development, a complex adaptive systems framework can help address the coupling of macro social constraint and opportunity with individual agency. Combining system...

We provide a system dynamics implementation of a dynamic ecological economics model. Dynamic economic models are often constrained to use functions, such as the Cobb-Douglas function, chosen “conveniently”...

Evolutionary interactions across levels of biological organization contribute to a variety of fundamental processes including genome evolution, reproductive mode transitions, species diversification, and...

The prediction and analysis of changes in the numbers of biological populations rest on mathematical formulations of demographic events (births and deaths) classified by the age of individuals. The development...

The Integrated History and future of People of Earth (IHOPE) initiative is a global network of researchers and research projects with its International Program Office (IPO) now based at the Stockholm Resilience...