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Risk-Taking, Inequality and Output in the Long-Run

Author

Listed:
  • Shuhei Aoki

    (Shinshu University)

  • Makoto Nirei

    (University of Tokyo)

  • Kazufumi Yamana

    (Kanagawa University)

Abstract

We develop a tractable dynamic general equilibrium model with incomplete markets for business risk sharing, which allows for analytical characterization under Epstein-Zin preference with unitary elasticity of intertemporal substitution and Cobb-Douglas technology. Household stationary wealth dispersion is shown to follow a Pareto distribution. In this environment, we conduct comparative statics of stationary output and household inequality when the cost of business risk sharing is reduced. Enhanced risk-taking results in greater long-run outputs and real wage and a lower risk-free interest rate, while its impact on inequality is ambiguous. A quantitative analysis under the parameter values calibrated to Japanese economy shows that elimination of purchase costs for mutual funds leads to an increase in output by 1.3 percent, a decrease in risk-free rate by 15 basis points, and an increase in Gini coefficient of wealth in 2 percentage points.

Suggested Citation

  • Shuhei Aoki & Makoto Nirei & Kazufumi Yamana, 2018. "Risk-Taking, Inequality and Output in the Long-Run," Bank of Japan Working Paper Series 18-E-4, Bank of Japan.
    • Handle: RePEc:boj:bojwps:wp18e04
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    References listed on IDEAS

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    1. Sohei Kaihatsu & Maiko Koga & Tomoya Sakata & Naoko Hara, 2019. "Interaction between Business Cycles and Economic Growth," Monetary and Economic Studies, Institute for Monetary and Economic Studies, Bank of Japan, vol. 37, pages 99-126, November.

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    More about this item

    Keywords

    Financial development; risk-free rate; safe asset; Pareto distribution; depository institutions; mutual funds;
    All these keywords.

    JEL classification:

    • E2 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment
    • G2 - Financial Economics - - Financial Institutions and Services

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