Polina is an Assistant Professor in Finance in the Accounting and Finance Department at Aston University. Her research focuses on investments, innovation, sustainable finance, fintech, behavioural finance, and decision-making under uncertainty and risk, with a particular interest in how emerging technologies shape financial behaviour and markets. Her work uses experimental and data-driven approaches to study investor behaviour and technology-enabled financial decision-making, with current projects on eco-innovation and sustainability, as well as digital wealth management and AI-driven financial advice. Her publications include contributions to contextual investment choices and behavioural decision-making in financial markets. Her research projects have received external funding, including a British Academy/Leverhulme Small Research Grant (PI), alongside participation in international initiatives such as the Horizon MSCA Industrial Doctoral Network on Digital Finance, COST Action CA21169, and an incubator grant on digital human avatars in education (CI).

Polina serves on the editorial board of Quantum Economics and Finance (SAGE), presents at international conferences and invited talks, and has supervised three PhD students to completion. Before joining Aston University, she held lecturer positions at the University of Twente (Netherlands) and the University of Leicester (UK). Polina is a Certified Expert in Digital Finance (CEDF).

Polina Khrennikova's research focuses on investments, innovation, sustainable finance and fintech.