Those who claim that capital controls are ineffective seldom specify at what they are presumed to be ineffective. In fact, by reducing the share of short-term foreign-currency debt in a country’s total liabilities, capital controls can reduce vulnerability to financial crises.
https://prosyn.org/8AFuNc5
SANTIAGO – Few policy debates are stranger than the one concerning capital controls. Mention the issue to a banker or a mainstream economist and you are likely to get a vehement reply: capital controls do not work, because speculators can evade them at little or no cost, but countries should never adopt such controls, because doing so is very costly. Am I the only one who finds this logic a bit crooked?