Contributor(s): Professor Nicholas Barr, Martin Lewis | Nicholas Barr has been described as one of the architects of student loans and tuition fees, and in particular of the reforms in 2006. Martin Lewis is the UK’s most googled man and former head of the Independent Taskforce on Student Finance Information. Nick and Martin argued about these things when Martin was General Secretary of the LSE Students Union and have a continuing lively argument now. This evening they will have their discussion in public. Nicholas Barr is Professor of Public Economics at LSE. Martin Lewis (@MartinSLewis) is the Money Saving Expert and former head of the Independent Taskforce on Student Finance Information. He is an LSE alumnus. Nona Buckley-Irvine (@nonajasmine) is General Secretary of the LSE Students' Union.