卡尔目前是谢菲尔德大学的经济学教授。他在英国开放大学与卡迪夫大学的联合指导下获得经济学博士学位。在此之前，卡尔于2001-2005年在莱斯特大学工作，在晋升为高级讲师之前，他最初是讲师。他于2005年9月被任命为谢菲尔德大学的读者，随后于2009年1月晋升为个人主席。从2006年到2010年，卡尔是埃塞克斯大学社会与经济研究所(ISER)的外部研究员。他在许多期刊上发表过文章，包括:Journal of Money, Credit and Banking;加拿大经济学杂志;经济学;经济调查;教育经济学; Journal of Banking and Finance; Journal of Economic Behavior and Organization; Journal of Health Economics; Journal of Economic Psychology; Journal of the Royal Statistical Society; Labour Economics; Oxford Bulletin of Economics and Statistics; Oxford Economic Papers; and Review of Income and Wealth. He has also published policy related research in Fiscal Studies, Oxford Review of Economic Policy and The Lancet. Research interests include applied microeconometrics, household finances and labour economics. Karl was a member of the Grant Assessment Panel C of the Economic and Social Research Council (ESRC) from September 2016-2020. Currently Karl is an Associate Editor of the Bulletin of Economic Research.
