If handled properly, dearer food is a once-in-a-generation chance to narrow income disparities and to wean rich farmers from subsidies and help poor ones.

• 如果处理得当，更贵的食品将是“一代人只有一次”的缩小收入差距、使富裕农民从补贴中摆脱出来以及帮助穷困农民的机会。