This paper explores the complementary use of two instruments to manage capital-account volatility in developing countries: capital account regulations and counter-cyclical prudential regulation of domestic financial intermediaries. Capital-account regulations can provide useful instruments in terms of both improving debt profiles and facilitating the adoption of (possibly temporary); counter-cyclical macroeconomic policies. Prudential regulation and supervision should take into account not only the microeconomic risks, but also the macroeconomic risks associated with boom-bust cycles. It should thus introduce counter-cyclical elements into prudential regulation and supervision, together with strict rules to prevent currency mismatches and reduce maturity mismatches. These instruments should be seen as a complement to counter-cyclical macroeconomic policies and, certainly, neither of them can nullify the risks that pro-cyclical macroeconomic policies may generate.