A sectoral currency is a form of complementary currency

Complementary currency

Complementary currency is a currency meant to be used as a complement to another currency, typically a national currency. Complementary currency is sometimes referred to as complementary community currency or as community currency...

 that is restricted to a specific sector. Examples of sectoral currency are the Saber

Saber (sectoral currency)

The Saber currency is a proposal of an educational sectoral currency initially presented in Brazil. It would be handed out by the ministry of education...

, which is restricted to the education

Education

Education in its broadest, general sense is the means through which the aims and habits of a group of people lives on from one generation to the next. Generally, it occurs through any experience that has a formative effect on the way one thinks, feels, or acts...

al sector and thus can only be used to buy education and the Hureai kippu, which is restricted to the health care

Health care

Health care is the diagnosis, treatment, and prevention of disease, illness, injury, and other physical and mental impairments in humans. Health care is delivered by practitioners in medicine, chiropractic, dentistry, nursing, pharmacy, allied health, and other care providers...

 sector.

Sectoral currencies can make people provide the type of services they themselves require or intend to use in the future, which means people may act collectively intelligent

Collective intelligence

Collective intelligence is a shared or group intelligence that emerges from the collaboration and competition of many individuals and appears in consensus decision making in bacteria, animals, humans and computer networks....

because a currency is not generally redeemable.