From september of 2018, the 25% of the financial support is paid in rec, a social currency so that it must be spent in the network of shops that accept payment in this currency. The purpose of the rec is to foster local trade and strengthen community ties among the people living in these neighbourhoods.
It is a citizen exchange system complementary to the euro, allowing transactions in a community between individuals, institutions and businesses that accept it. It is an exclusively digital currency to be used with a mobile app.
You can find more information here: www.rec.barcelona