Capital controls

Capital control is an action taken by a government, central bank, or regulatory body to limit the flow of foreign capital in and out of a domestic economy [WallStreetMojo].
Capital control represents any measure taken by a government, central bank, or other regulatory body to limit the flow of foreign capital in and out of the domestic economy. These controls include taxes, tariffs, legislation, volume restrictions, and market-based forces. Capital controls can affect asset classes such as equities, bonds, and foreign exchange trades.
Capital controls are established to regulate financial flows from capital markets into and out of a country's capital account. These controls can be economy-wide or specific to a sector or industry. Government monetary policy can enact capital control. They may restrict the ability of domestic citizens to acquire foreign assets, referred to as capital outflow controls, or foreigners' ability to buy domestic assets, known as capital inflow controls. Tight controls are often found in developing economies where the capital reserves are lower and more susceptible to volatility [Investopedia].

Sources:

What Are Capital Controls? Definition and What They Include. Investopedia. Retrieved from: https://www.investopedia.com/terms/c/capital_conrol.asp

Excise duty. WallStreetMojo. Retrieved from: https://www.wallstreetmojo.com/capital-controls/