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• A lot of poor countries depend on their agriculture to help them provide with food & water.
• This makes them particularly vulnerable to man-made and natural influences that reduce agricultural production. 
• Agricultural trade issues are seen to be much more complex now compared to earlier days. Since the mid-1980s, the value of the dollar has been falling on world currency exchanges and few people (including economists) agree on whether this is good, bad, or no big deal.