It's been a rough week at the office for Joe Hockey.

The shadow Treasurer has grown in stature this year, as apparently one of the few senior figures in the Coalition to understand the magnitude of the task the opposition has set itself in promising personal tax cuts while repealing two significant taxes but keeping many of the associated spending initiatives. Once ridiculed as a buffoon by business, he increasingly looks like the hope for commonsense and discipline in a government led by the economically irrational Tony Abbott and the lunatic from St George who'll likely be deputy prime minister.