Asia is very different than Africa / Middle East because their colonization history did not go so well (and developed Asian countries such as HK / Singap / etc. are as efficient as EU/US), there is mounting racism against white in countries such as Thailand, Vietnam etc. and the rules tend to privilege locals. Whereas in most African countries and all middle-eastern countries, the white educated person who comes from a "foreign land" is usually well listened to and well respected.
These markets are widely untapped. A friend just moved to Mozambique, with 2,000$ a month he as a 3 bedroom with swimming pool, a nanny and a driver (a driver is about 70$ a month in most countries of Africa). Within the first 3 months, he has imported 3 containers of wine for a wine shop that had no french wine on shelves, making 180k$.
In Europe and the US, everyone needs to fight for a cent, because the market has become too efficient (not specifically the financial market), in the remaining 80% of the world it's far from the case. East africa just went through a tough food crisis even though the country can produce huge amount of food. That means you are the only guy in town who can sell food, there is physically no food in the country, you can sell an Apple for 5$ each.
I have invested 100k€ in a farm in Kenya and am yielding 90k€ per quarter.
The tough part tho is to get in the system, make friend there, etc. maybe try to go work for a private equity fund with offices in Africa or.... an english teacher in dubai ? some make 200k$+.
90k per quarter from a farm investment in Africa with record low commodity prices
Sounds like a fairytale