Her research interests span three defined areas: the determinants of health and healthcare, economic evaluation and outcome measurement. She has worked across the health and medical spectrum and much of her clinical research has focused on oncology, particularly genomics and precision medicine, and more recently long COVID. She has experience across a range of methodologies including the analysis of trial data, decision analytic modelling, econometric analyses of health surveys including panel data, preference elicitation using discrete choice experiments and qualitative analyses.  

She is the chair of the Scientific Committee of the 2023 and 2025 IHEA Congresses and current President of the ISPOR New Zealand Chapter. From 2018-2023 Paula was a national organiser of the UK Health Economists’ Study Group (HESG).  She is a member of the EuroQol Group, and on the Editorial Boards of the Journal of Cancer Policy, The Patient and the Social Science Medicine – Health Systems.