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Welcome to 'Research Snapshots', where we offer a glimpse into the diverse research interests of PhD students in the Department of Economics at Trinity College Dublin. Each month, we invite a student in the department to discuss an area of their research. Join us as we learn about the latest findings from our researchers in just a few minutes of your time.
Keith Keogh
Eduardo is a second year (part time) PhD student in the Department of Economics at Trinity College Dublin.
Can you tell us about your current research and the question or problem it addresses?
I research the effect that population ageing and demographics have on tax and Government balances, and hence debt sustainability and fiscal rules for the Euro area. I work to improve the scenario tools available to policy makers, particularly on behavioural responses and second round effects for policy changes given demographics and expanding on Professor Joseph Kopecky.
Why do you think this area of research matters- for economics or for society more broadly?
Most developed economies are already suffering from rising debt ratios and interest costs. The US now spends more on interest than its military and EU counties are facing increased spending demands for climate and security. Population ageing will worsen this fiscal situation, with less workers to pay tax and more pensioners with medical needs, hence my research highlights the policy options for fiscal prudence.
What would you say to students who are interested in pursuing an economics PhD?
The Irish Public Service has wonderful full and part-time opportunities for funding research that will directly feed into the policy making process, open career opportunities and impact people in Ireland.
October 2025