their manipulations still have some impact on transactions as prices rebound in one country or another before plunging, then rising again, but it won’t be long before their former stranglehold is removed totally and a new basis for banking and commerce can begin operating.

Make this proper case
Their manipulations still have some impact on transactions as prices rebound in one country or another before plunging, then rising again, but it won’t be long before their former stranglehold is removed totally and a new basis for banking and commerce can begin operating.