"Never let an opportunity pass by, but always think twice before acting," says a Japanese proverb with particular pertinence for East Asia today.

Plunging oil prices present a significant opportunity for most of the region's developing countries to strengthen the competitiveness of their economies and take advantage of the ongoing global recovery.

The drop in oil prices — over 50 percent since mid-2014 — reflects several years of increasing oil supply, particularly in North America, along with decreased geopolitical risks to global production, OPEC's efforts to maintain production levels and market share, and weaker-than-expected global growth last year. These factors are likely to persist, with oil prices expected to remain low through at least 2016.