In macroeconomics, hard currency, safe-haven currency, or strong currency is any globally traded currency that serves as a reliable and stable store of value. Factors contributing to a currency's hard status might include the stability and reliability of the respective state's legal and bureaucratic institutions, level of corruption, long-term stability of its purchasing power, the associated country's political and fiscal condition and outlook, and the policy posture of the issuing central bank.
This article possibly contains original research. (May 2012)
Safe haven currency is defined as a currency which behaves like a hedge for a reference portfolio of risky assets conditional on movements in global risk aversion. Conversely, a weak or soft currency is one which is expected to fluctuate erratically or depreciate against other currencies. Softness is typically the result of weak legal institutions and/or political or fiscal instability.