Liz Truss has said she will unleash investment and boost economic growth by taking ‘full advantage’ of Brexit if she becomes prime minister.At a roundtable with key investors in the City of London on Friday morning, the Foreign Secretary will set out a series of measures which she claims would ‘put money back into the pockets of hard-working people’.The Tory leadership hopeful said she would implement supply side reforms, including reforming Solvency II and The Markets in Financial Instruments Directive (MiFid) regulations.