Question

what is double coincidence of wants?​

Answer 1

when u need agreement of two parties for buying each other's commodities

this situation is called double coincidence of wants

for eg a fisherman wants to sell his fish for rice and a farmer wants to sell rice for fish . in this situation there is double coincidence of wants , both of them need was each others commodities

Answer 2

The coincidence of wants lacking a medium of exchange, which have to rely on barter or other in-kind transactions. Double coincidence of wants means that the both the parties have to agree to sell and buy each commodities.