We investigate masked financial instability caused by wealth inequality. When an economic sector is decomposed into two subsectors that possess a severe wealth inequality, the sector in entirety can look financially stable while the two subsectors possess extreme financially instabilities of...

The effectiveness of government policies and economic stimuli during the 2007 financial crisis and the COVID-19 pandemic are compared in this study. While the 2007 financial crisis started in the real estate market and spread through the contagion effect to other sectors, the pandemic halted the...

We build an agent-based dynamical system for the global economy to investigate and analyze financial crises. The agents are large aggregates of a subeconomy, and the global economy is a collection of subeconomies. We use well-known theories of dynamical systems to represent a financial crisis as...

The 2007-2009 financial crisis provided need to investigate the causes of systemic risk - also known as contagion - and cures to avoid it. In this article, we use well-established theories in dynamical systems, bifurcation, symbolic dynamics, and chaos, to explain the mechanism behind the...

The 2007-2009 financial crisis has shown the importance of understanding economic and financial dynamics for the evaluation of systemic risks. In this article, we use classical perturbation theory of dynamical systems to measure the global stability of the financial system. We analyze the...

The impact of increasing leverage in the economy produces hyperreaction of market participants to variations of their revenues. If the income of banks decreases, they mass-reduce their lendings; if corporations sales drop, and due to existing debt they cannot adjust their liquidities by further...