Absolutely, it's the wealth tax. It would bring in more revenue, and it would have some of the same effects as an excess profits tax. We are alone among many of our allies in not having some form of wealth tax. It's in the fiscal tool kit. We just need to make use of it.
Evidence of meeting #27 for Finance in the 43rd Parliament, 2nd session. (The original version is on Parliament’s site, as are the minutes.) The winning word was pandemic.
A video is available from Parliament.