| Foreign exchange | 
|---|
| Exchange rates | 
| Markets | 
| Assets | 
| Historical agreements | 
| See also | 
A managed float regime, also known as a dirty float, is a type of exchange rate regime where a currency's value is allowed to fluctuate in response to foreign-exchange market mechanisms (i.e., supply and demand), but the central bank or monetary authority of the country intervenes occasionally to stabilize or steer the currency's value in a particular direction. This is in contrast to a pure float where the value is entirely determined by market forces, and a fixed exchange rate where the value is pegged to another currency or a basket of currencies.
Under a managed float regime, the central bank might buy or sell its own currency in the foreign exchange market to counteract short-term fluctuations, to prevent excessive depreciation or appreciation, or to achieve certain economic goals such as controlling inflation or boosting exports.
In an increasingly integrated world economy, the currency rates impact any given country's economy through the trade balance. In this aspect, almost all currencies are managed since central banks or governments intervene to influence the value of their currencies. According to the International Monetary Fund, as of 2014, 82 countries and regions used a managed float, or 43% of all countries, constituting a plurality amongst exchange rate regime types.[1]
International financial organizations, like the IMF, categorize countries' exchange rate regimes based on specific criteria, but these classifications aren't necessarily objective and may not fully capture the nuances of a country's exchange rate policies. For example, a country may normally have a floating exchange rate regime but intervene in times of extreme volatility, a country may formally claim to be following one exchange rate regime (de jure) while having another in practice (de facto).
United States for instance, claims to follow a floating exchange rate regime and does not typically engage in direct intervention to set exchange rates. However, its economic policies, the role of the U.S. Dollar as a global reserve currency, and the sheer size of the US economy give it a significant indirect influence on global exchange rates and financial markets.
For more detail on each countries' exchange rate regime it is recommended to read IMF's Annual Report on Exchange Arrangements and Exchange Restrictions.
List of countries with managed floating currencies

- Source IMF as of April 31, 2008
 
 Afghanistan
 Algeria
 Argentina
 Armenia
 Burundi
 Cambodia
 Colombia
 Dominican Republic
 Egypt
 Ethiopia
 Gambia
 Georgia
 Ghana
 Guatemala
 Guinea
 Haiti
 Indonesia
 Jamaica
 Japan[2]
 Kenya
 Kyrgyzstan
 Laos
 Liberia
 Madagascar
 Malaysia
 Mauritania
 Mauritius
 Moldova
 Morocco
 Mozambique
 Myanmar
 Nigeria
 Pakistan
 Papua New Guinea
 Paraguay
 Peru
 Romania
 São Tomé and Príncipe
 Serbia
 Singapore
 Sudan
 Taiwan
 Tanzania
 Thailand
 Trinidad and Tobago[3]
 Uganda
 Ukraine
 Uruguay
 Vanuatu
See also
- December Mistake
 - Black Wednesday
 - Fixed exchange rate
 - Floating exchange rate or Floating currency
 
References
- ↑ "IMF finds more countries adopting managed floating exchange rate system". Nikkei Asian Review. Nikkei. August 19, 2014. Retrieved 5 March 2015.
 - ↑ Japanese yen
 - ↑ "Floating of the TT dollar: 20 years later". Trinidad Express Newspaper. April 2, 2013. Archived from the original on April 5, 2013.