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Macroprudential Policy in a Bubble-Creation Economy

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  • Pongsak Luangaram
  • Athakrit Thepmongkol

Abstract

This paper analyzes macroprudential policy in the form of loan-to-value (LTV) restriction in a bubble-creation economy of Martin and Ventura (forth- coming). We find that implementation of LTV policy may generate multiple equilibria. Moreover, its effectiveness in terms of investment and size of bubbles depends on the degree of financial friction. In high-capital steady state, low (high) financial friction implies that bubbles originally crowd out (in) investment, so that implementation of LTV policy causes bubbles to decrease (remain unchanged) and enhances (reduces) investment. However, in low-capital equilibrium, the policy has ambiguous effects. LTV policy may help to lower the possibility of sunspot equilibria in two aspects: (1) by destabilizing the low-capital steady state and (2) by confining the set of consistent market sentiments in the presence of high financial friction.

Suggested Citation

  • Pongsak Luangaram & Athakrit Thepmongkol, 2016. "Macroprudential Policy in a Bubble-Creation Economy," PIER Discussion Papers 22, Puey Ungphakorn Institute for Economic Research.
    • Handle: RePEc:pui:dpaper:22
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    References listed on IDEAS

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    More about this item

    Keywords

    Rational bubbles; Bubble creation; Macroprudential policy; Loan-to-value ratio; Overlapping generations model; Financial friction;
    All these keywords.

    JEL classification:

    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates

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