Capital controls are rules that countries use to manage money coming in and out of their economies. A study looked at how these controls affect emerging economies from 2010 to 2018. They found that stronger capital controls can help countries have more control over their money and keep their exchange rates stable. When countries use capital controls to limit money coming in, it can cause problems for other countries with lots of money to invest. But overall, capital controls can help countries deal with risks from too much money coming in or going out.