Institutional voids are usually associated with developing or emerging economies although they also exist in developed economies. Institutional system failures are prevalent in times of changes. Institutions that previously "work" become obstacles to the business environment. The number and type of alternative currencies (such as, cryptocurrencies and LETS (local exchange trading systems ) and complementary currencies (such as, Cubo card in Brazil's Fora do Eixo system) are increasing in developed and developing economies. We will appreciate your opinion on the topic and examples of the use of alternative and complementary currencies in developed and developing markets.