This paper establishes a coupled human-ecological model where slow-varying migration is interacting with fast-varying nutrient dynamics in lake ecology. The nonlinearity and fast-slow dynamics built in the model can generate regime shifts (that is, shifts between different equilibrium states)...

We develop a coupled model of regional migration and lake ecology to study the influence of ecological-economic interactions and relative time scales on transient and asymptotic dynamics. Cross-scale interactions fundamentally change system dynamics by eliminating steady states that are present...

Previous research has shown that expected market returns vary over time and that this variationcan be predicted by variables such as dividend yields and book-to-market ratios (Fama andFrench (1989); Campbell and Thompson (2008)). Further, macroeconomic variables affect assetreturns (Flannery and...