
https://www.econstor.eu/bitstream/10419/266146/1/1820832732.pdf

https://www.open-britain.co.uk/new_research_trade_deals_with_five_key_countries_could_take_26_years_to_negotiate

https://theconversation.com/cocoa-prices-are-surging-west-african-countries-should-seize-the-moment-to-negotiate-a-better-deal-for-farmers-214305