A good precursor to the tax discussion would be heightened transparency via public access to all tax returns. E.g. Since 2002, all Norwegian citizens' salaries

A good precursor to the tax discussion would be heightened transparency via public access to all tax returns. E.g. Since 2002, all Norwegian citizens' salaries and net worth has been accessible to all. Amongst other things, it would give a better picture of political candidates' motivations as they propose various tax "reforms".