In the annual published Global Financial Integrity update, it has been identified that there has been a total value gap of $8.8 trillion in trade between 135 developing and 36 advanced economies over the ten-year period. In 2017, the value gap associated with trade misinvoicing amounted to 18 per cent of developing country trade. Rick Rowden, Senior Economist at Global Financial Integrity joins CNBC Africa on how this is hurting African economies.