Catherine Connolly has worked on a wide range of economic topics across the public and private sectors, including macroeconomic forecasting, cost-benefit analysis and globalisation. Catherine was in the British Civil Service between 2001 and 2018 where she was a member of the Government Economic Service and the Senior Civil Service. She worked at HM Treasury, the Department for Environment, Food and Rural Affairs (Defra) and at the former Department of Trade and Industry (DTI). She has also worked as an economic forecaster for Deutsche Bank in Frankfurt, the New Zealand Treasury and the Reserve Bank of New Zealand.

Catherine is the founder of economicsense, a specialist economics training provider, and studied economics at Otago University, New Zealand.