According to Jérôme Blanc of Laboratoire d'Économie de la Firme et des Institutions, complementary currencies aim to protect, stimulate or orientate the economy.
Current complementary currencies have often been designed intentionally to address specific issues, for example to increase financial stability.
[9][dubious – discuss] They are most successful if the currency circulates within the users, in cycles or loops, as shown in an analysis of the use of Sardex by 1,477 entities in Sardinia in 2013 and 2014.
[10] According to professor Nikolaus Läufer's theory, the use of local currencies such as Freigeld can only increase economic activity temporarily.
Lengthy use of a local currency will ultimately result in a decline in economic activity and lead to a destabilization of the economy.