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Lizzie O’Leary takes us through three countries at the forefront of the changing global economy, Germany, Nigeria and Brazil. In Germany, Simon Jack learns the global view from a nation of savers, and how the German word for debt and guilt are closely interlinked. In Nigeria, Nkem Ifejika discovers the importance of the 5 to 9 – or ‘side-hustle’ job and discovers how you do business without power, and in Brazil, Lizzie O’Leary takes a ride in a bullet-proof car, and learns the vast divides between the super wealthy and the rising middle class.

Image: A bustling street scene in Nigeria. Credit: Getty