Part I. Externilities, Network Effects, and Systemic Risks: Unstable banking; Financial network, interconnectedness, and contagion; Endogenous exposure to systemic liquidity risks; Financial complexity and systemic risk; Leverage and leverage cycle; Micro fragility and macro stability -- Part II. Topics in Macroprodential Regulation: From microprudential to macroprudential regulation; Liquidity regulation and the lender of last resort policy; Capital requirements and equity buffer.