The unanswered question as to what the exact definition of Local Currency is remains to be discussed, yet to-date, the 4 major characteristics have been observed per below:
(1) Not to be legal tender
(2) To be circulated only in specific area
(3) To possess the basic functions of currency as a (a) medium of exchange, (b) a measure of value, and (c) store of value
(4) To have social value
Supplement to (3) To possess the basic functions of currency as a (a) medium of exchange, (b) a measure of value, and (c) store of value, for (a) medium of exchange, Local Currency can be exchanged for goods and other items within that specific area and have the role of preventing the outflow of funds outside the region and consequently promoting economic circulation within the region. For (b) a measure of value, Local Currency use their own currency unit and have measure of value. In many cases, the currency unit is equivalent to the Japanese Yen. For (c) store of value, Local Currency is intended for local use only and their position as store of value is limited. Due to the reason, many Local Currencies have an expiration date or depreciate over time and thus, the function of gaining interest (i.e., value of capital increase) is also purposely eliminated.
Regarding (4) To have social value, Local Currency has various ways to measure both economic value and social value. For this discussion, economic value is characterized as something directly and numerically measurable, whereas social value is more of indirectly and less numerically measurable. Moreover, social value has value beyond economic rationality. By purposely limiting the scope and purpose of use, Local Currency would give meaning of use in the area. For example, Local Currency can also be received in situations other than labor or sales such as participation in local volunteer activities or giving gifts within the community. Other example would be purchasing local specialties where people do not judge the consumption not only by the experience of purchasing of the goods but experience beyond purchasing through based on their participation in the community. Visualizing local participation in the form of currency would also encourage its expansion. Thus, Local Currency have both economic and social aspects.
In promoting local expansion using monetary medium, Local gift certificate has been often considered, and now gradually may be considered as a supplement to Local Currency. Local gift certificate, which has been used and still widely issued as an economic measure to promote consumer demand and consumption for the purpose of promoting regional development, has same features of Local Currency mentioned in the 4 major characteristics above except (3) (a) medium of exchange is limited. In addition, Local Currency can be charged repeatedly to be used in multiple payment occasion. However, local gift certificate is basically intended for one-time purchase and cannot be used repeatedly. In other words, the recipient cannot become a re-user of the coupon as it is, and must assume a situation where, for example, the coupon must be returned to the program management office each time to encash the coupon to receive in form of either cash or account remittance of the coupon receiver. Despite the fact whether chargeable or non-chargeable, in practice, there are steps where premium digital gift certificate is issued to first increase the number of users, and then a similar business scheme is inherited to lead to a digital Local Currency as in many cases.