Following the global financial crisis, there has been much discussion around adopting capital controls. This has been seen in Brazil where a tax was imposed on financial assets purchased by foreigners. However, it is not just within developing countries that capital controls are gaining popularity. John McDonnell, the shadow chancellor, hinted at reinstating them under a Labour government in response to a fall in the value of the pound.[1]
Read more about capital controls.
[1] Belam, C. & Boughton, J., Wealth tax and capital controls in the UK?, 30 November 2018, https://private-wealth.bclplaw.com/insights-resources/blog-post/wealth-tax-and-capital-controls-in-the-uk, (accessed 28 October 2019).