The country's vital cashew nut crop provides a modest living for most of Guinea-Bissau's farmers and is the main source of foreign exchange.

BBC: Guinea-Bissau profile

Under a trade deal with the European Union called GSP-plus, Sri Lanka's garment exports (its second-largest source of foreign exchange) enjoy duty-free access to the EU. But GSP-plus hinges partly on human rights.

ECONOMIST: Sri Lanka

And remittances, a big source of foreign-exchange revenue in the region, could fall steeply in a prolonged slowdown.

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