THERE are many ways to defend a currency. Ayam Geprek Juara, an Indonesian restaurant chain that serves crushed fried chicken, has offered free meals this month to customers who can show they have sold dollars for rupiah that day. The restaurant has provided more than 80 meals to these “rupiah warriors”, according to Reuters, a news agency.
Perhaps it should extend the offer to the staff of Bank Indonesia, the country’s central bank, which is only about 20 minutes away from one of the restaurant’s branches. To defend the rupiah, it has been selling billions of dollars of foreign-currency reserves, which have fallen from over $ 125bn in January to less than $ 112bn in August. Despite these sales, and four interest-rate rises since May, the rupiah has lost almost 10% of its value against the dollar this year, returning to levels last seen during the Asian financial crisis of 1997-98.
India’s rupee has fared even worse, reaching a record low against the dollar. And even where Asia’s…