From 2002, Harrison worked at the
Institute for Fiscal Studies as Senior Research Economist. From 2006-2010, he was chief economic advisor to the then Leader of the Opposition David Cameron and Shadow Chancellor George Osborne. From 2010 to 2015, he was chief of staff to UK Chancellor of the Exchequer, George Osborne, and chair of the UK’s Council of Economic Advisors. In August 2015, Harrison joined the investment firm
BlackRock, where he is a portfolio manager and chief macro strategist for multi-asset strategies. Harrison has written opinion pieces for the
Financial Times and has regularly appeared as a commentator on TV and radio. Harrison was appointed as a member of the government's Economic Advisory Council by Chancellor
Jeremy Hunt in 2022. However, he was not elected.
Views on Brexit Harrison believes
Brexit damages the UK economy. In 2017, he wrote, "Q2 growth of 0.3% is not the end of the world, and I'm less gloomy than many on the outlook. But the rest of Europe is booming and we're not". ==Recognition==