Short term the farmer loses... because he cannot sell to anyone. But long term the economy benefits - we are talking 20% of value derived from processing them. Those farmers have children who require jobs. Those jobs will come if we build the value-chain - from farmer to cooperatives to factories to transporters to etc. The multiplier effect of one factory job is 10 times...so those 17K Mozambique factory works...are equivalent to say 170K jobs.
What works is to protect infant industries for some time - like South Asian tigers did - and if those infant industries don't grow - then cut the losses. For example our cashew nut story hasn't changed - but Macadamia is doing very well. It's been about 10yrs since Ruto started those interventions time to let go.
For Tea - we really have to stop the Liptons and others buying our tea in bulky and start building our brands. For example Sudan don't want tea in bulk but we still insist on selling them in bulk.
Sri lanka - which produce half our tea - earn twice - because Ceylon Tea is a well-known brand.
KTDA has to start exporting our Tea to Africa and Asia countries. We have to take the war to LIPTON TEA - maybe even ban them from buying our tea in bulk.
That's the wroing policy, its actually an economic rights issue. Farmers should sell to whomever they deem fit to buy their product. Asia countries productivity per worker is very high compared to africans. That's why protection or in actuality subsidizing processors ends up eventually killing the industry.