[1] He is a regular contributor to the TV programs RTL Z and De Wereld Draait Door and writes columns for Het Financieele Dagblad and the business website Z24.nl.
[2] A critic of the Dutch Polder model, in which "bad luck is officially forbidden" and "accidents are banned",[3] he is referred to as a market liberalist,[4] and as a prominent opinion builder[5] whose Twitter account is recommended for "peppered" opinions.
[9] After his promotion, he was a researcher at three Dutch universities, and worked for De Nederlandsche Bank between 2003 and 2005.
[12] He comments (for RTL Z and other outlets) on economic topics including the stock exchange[13][14] and the Financial crisis of 2007–08.
A review in the NRC Handelsblad noted a number of worthwhile one-liners, including "If women pay fewer taxes, men will vacuum more often" and "the world's tallest buildings are usually an omen of disaster".