World of BusinessThe 20-somethings betting big on tech stocksThe BBC hears from people about the risks and rewards of investing in technology shares.This farmer wanted to quit the cocaine industry - he couldn'tColombians who grow cocaine's raw material bemoan a lack of support to help them switch crops.New era for Gibraltar with removal of 118-year-old border controls with SpainIt is hoped that free movement between the UK territory and Spain will provide an economic boost.Wealthy AI workers send San Francisco house prices soaringThe median cost of a home in the city is now $1.7m, a record high, according to the latest figures.The African fishermen who blame Chinese trawlers for their woesFishing crews in Sierra Leone say large Chinese ships are illegally hoovering up stocks.Shift from diesel 'helping Rwanda manage price shocks'Moving beyond diesel to local energy has given Rwanda a buffer against rising global energy prices.World of BusinessKenya bank CEO calls for regional response to energy shockEast Africa urged to unite and collaborate on infrastructure in response to the global energy price volatility.World of BusinessEnergy price increases challenge connectivity across AfricaAfrica's largest mobile network operator warns that the Iran crisis could deepen Africa's connectivity gap.World of BusinessWhy the Iran crisis threatens Africa's food supplyThe head of one of East Africa's biggest banks has warned of the Iran war's impact on food security in Africa.World of Business'Energy security outweighing climate concerns globally'The head of one of Nigeria's biggest energy companies, Oando, says Iran tensions have boosted demand for African oil.World of BusinessChina's new exports take on the worldA new generation of Chinese goods are riding a new wave as they become globally recognisable brands.World of Business