Assessing the Gains from International Macroprudential Policy Cooperation

We study the effects of coordinated and noncoordinated macroprudential policies in a core–periphery model that emphasizes the role of international financial centers. After documenting empirically the existence of cross-country macroprudential spillovers and policy interdependence, we derive a number of results. First, even absent financial frictions, self-oriented policymakers attempt to manipulate asset prices to their advantage, resulting in higher long-run capital taxes. Second, financial frictions generate a subsidization bias, as policymakers aim at eliminating the inefficiency wedge between the cost of capital and the deposit rate. Third, self-oriented national policies imply insufficient subsidies in the long run and wider efficiency gaps in the short run, resulting in substantial gains from cooperation.
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Agénor P-R., Gambacorta L., Kharroubi E., Lombardo G., Pereira da Silva L. (2021) Assessing the Gains from International Macroprudential Policy Cooperation, Journal of Money, Credit, and Banking, vol. 53, pp. 1819-66.