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Net Worth Ratio and Financial Instability


  • Toshio Watanabe



In order to better understand relationships between the real economy and financial economy, it is necessary to formulate a model of financing. New Keynesian theory emphasizes that a firm’s net worth influences investment decisions and business cycles under an imperfect capital market. We have constructed a dynamic model from the standpoint of post Keynesian economics. We incorporate a dynamic equation of a firm’s net worth ratio and investigate financial factors, which give rise to economic instability. Our results demonstrate that a steady state can be a saddle point when the dividend rate is low and the bank’s lending reaction to the net worth ratio is more elastic than investment reaction. When the steady state is the saddle, the change in the basic discount rate is likely to shift the economy from an unstable path to a convergence path. Financial policy has a stabilizing effect in the long-run as well as a positive effect in the short-run. JEL Classification: E12, E44, E52. Copyright T. Watanabe; licensee Springer 2013

Suggested Citation

  • Toshio Watanabe, 2013. "Net Worth Ratio and Financial Instability," Journal of Economic Structures, Springer;Pan-Pacific Association of Input-Output Studies (PAPAIOS), vol. 2(1), pages 1-18, December.
  • Handle: RePEc:spr:jecstr:v:2:y:2013:i:1:p:1-18:10.1186/2193-2409-2-3
    DOI: 10.1186/2193-2409-2-3

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    References listed on IDEAS

    1. Passarella, Marco, 2012. "A simplified stock-flow consistent dynamic model of the systemic financial fragility in the ‘New Capitalism’," Journal of Economic Behavior & Organization, Elsevier, vol. 83(3), pages 570-582.
    2. Tobin, James, 1969. "A General Equilibrium Approach to Monetary Theory," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 1(1), pages 15-29, February.
    3. Domenico Delli Gatti & Mauro Gallegati, 1990. "Financial Instability, Income Distribution, and the Stock Market," Journal of Post Keynesian Economics, Taylor & Francis Journals, vol. 12(3), pages 356-374, March.
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    More about this item


    Bank behavior; Investment; Unstable economy; Monetary policy;

    JEL classification:

    • E12 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Keynes; Keynesian; Post-Keynesian
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy


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