Nairobi US President insists on advancing bottom-up economic model by Enock Ndayala September 20, 2022 by Enock Ndayala September 20, 2022 US President Joe Biden hit out at the trickle-down economic model saying he is “tired” and “sick” because it has never worked. In a statement on Tuesday, September 20, the… 0 FacebookTwitterPinterestWhatsappTelegramEmail