Intervention Loses Potency Just as Currency Wars Seen Escalating

As a new round of competitive devaluation looms, evidence is mounting that currency interventions are losing their potency. Mexico’s peso fell to a record on Friday as Cantor Fitzgerald LP criticized the nation’s efforts to strengthen the exchange rate as “mostly futile.” A study by Brazilian central bankers last week found “no evidence” that their intervention program was affecting currency volatility. And far from driving a ......