Tunisian dinar
It is a criminal offence in Tunisia to import or export dinar. Every year, each citizen can convert into foreign currency up to 6,000 Tunisian dinars before departure from the country. Therefore, prices at duty-free shops are in convertible currencies such as euros, US dollars and British pounds. There are many converting ATMs in the country for tourists.
Economy of Tunisia
Tunisia is in the process of economic reform and liberalization after decades of heavy state direction and participation in the economy. Prudent economic and fiscal planning have resulted in moderate but sustained growth for over a decade. Tunisia's economic growth historically has depended on oil, phosphates, agri-food products, car parts manufacturing, and tourism. In the World Economic Forum Global Competitiveness Report for 2015-2016, Tunisia ranks in 92nd place. Based on HDI latest report (for 2014), Tunisia ranks 96th globally and 5th in Africa.