Research Topics

Publications on Asset bubbles

There are 2 publications for Asset bubbles.
  • Bank Leverage Ratios and Financial Stability


    Working Paper No. 849 | October 2015
    A Micro- and Macroprudential Perspective

    Bank leverage ratios have made an impressive and largely unopposed return; they are mostly used alongside risk-weighted capital requirements. The reasons for this return are manifold, and they are not limited to the fact that bank equity levels in the wake of the global financial crisis (GFC) were exceptionally thin, necessitating a string of costly bailouts. A number of other factors have been equally important; these include, among others, the world’s revulsion with debt following the GFC and the eurozone crisis, and the universal acceptance of Hyman Minsky’s insights into the nature of the financial system and its role in the real economy. The best examples of the causal link between excessive debt, asset bubbles, and financial instability are the Spanish and Irish banking crises, which resulted from nothing more sophisticated than straightforward real estate loans. Bank leverage ratios are primarily seen as a microprudential measure that intends to increase bank resilience. Yet in today’s environment of excessive liquidity due to very low interest rates and quantitative easing, bank leverage ratios should also be viewed as a key part of the macroprudential framework. In this context, this paper discusses the role of leverage ratios as both microprudential and macroprudential measures. As such, it explains the role of the leverage cycle in causing financial instability and sheds light on the impact of leverage restraints on good bank governance and allocative efficiency.

  • Orthodox versus Heterodox (Minskyan) Perspectives of Financial Crises


    Working Paper No. 695 | November 2011
    Explosion in the 1990s versus Implosion in the 2000s

    Orthodox and heterodox theories of financial crises are hereby compared from a theoretical viewpoint, with emphasis on their genesis. The former view (represented by the fourth-generation models of Paul Krugman) reflects the neoclassical vision whereby turbulence is an exception; the latter insight (represented by the theories of Hyman P. Minsky) validates and extends John Maynard Keynes’s vision, since it is related to a modern financial world. The result of this theoretical exercise is that Minsky’s vision represents a superior explanation of financial crises and current events in financial systems because it considers the causes of financial crises as endogenous to the system. Crucial facts in relevant financial crises are mentioned in section 1, as an introduction; the orthodox models of financial crises are described in section 2; the heterodox models of financial crises are outlined in section 3; the main similarities and differences between orthodox and heterodox models of financial crises are identified in section 4; and conclusions based on the information provided by the previous section are outlined in section 5. References are listed at the end of the paper.

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