Interactions among Financial Institutions ------From a Biological Ecosystem to a Financial Ecosystem
Tingchun HAN, Wei YU

Abstract
Based on theories and models of interactions among species in ecology and the inner similarities between a biological ecosystem and a financial ecosystem, in this article, we plan to construct the corresponding theories and models of interactions among financial institutions in a financial ecosystem and confirm them with historical data from the US. Finally, we will discuss the hot topic, the US financial crisis in 2008, from the perspective of r-selection and K-selection theory in ecology.

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