This article comments on “Is a Broadly Based Mark-to-Market Tax Unconstitutional,” by Gene Magidenko. Magidenko gets all the big points right in questioning the constitutionality of a mark-to-market system of taxation, but this article suggests he did not emphasize one point enough: the...

Informal proposals to enact a national wealth tax have been around for a while, and Senator Elizabeth Warren, while still a presidential candidate, promoted a specific form of wealth tax: a tax on the net wealth of high-net-worth individuals. Whatever the economic and ethical merits of such a...