You manufacture wine goblets. In mid-June, you receive an order for 10,000 goblets from Japan. Payment of $¥ 400,000$ is due in mid-December. You expect the yen to rise from its present rate of $$\$ 1=¥ 130$$ to $$\$ 1=¥ 100$$ by December. You can borrow yen at 6 percent a year. What should you do?