[Pitarou]

Is this more to your liking then:

Japan is peculiarly vulnerable to potato shortages because it restricts imports, even when its own potato crop fails.

[emodendroket]

Ok, sure. But there is currently a shortage of lettuce going on in the supermarkets here despite a liberalized trade regime. It's not a panacea.

[Pitarou]

Not for lettuce, no. It has a short shelf life and doesn’t travel well.