He is the principal and sole owner of Wendell Cox Consultancy/Demographia, based in the St. Louis metropolitan region and editor of three web sites, Demographia, The Public Purpose and Urban Tours by Rental Car.
He is vice president of CODATU, an international organization dedicated to improving urban transport in developing world urban areas.CODATU: Agir pour une mobilité soutenable dans les villes en développement | CODATU est une association de droit français qui anime un réseau international d'expertise sur les transports et la mobilité dans les villes des pays en développement He was also a member of the steering committee of the International Conference on Competition and Ownership in Land Passenger Transport, which held its 10th conference in Australia in 2007.
Cox believes that the goal of public transportation systems should be to provide mobility to those who do not have access to a car, and not to reduce traffic congestion.
[9] As such he believes that agencies should seek to obtain maximum value for every dollar of taxes and fees expended, using whatever transportation choices maximize ridership.
He says public transportation does a "good job of getting people downtown and serving the low-income poor moving around the core, but it can't do any more than that."
Among other things, he claims his aim is to improve urban mobility through performance programs that obtain the greatest reduction in travel-delay hours for the public funding available.
[citation needed] Cox claims to be "'pro-choice' with respect to urban development," and asserts that "people should be allowed to live and work where they like," consistent with the Lone Mountain Compact, of which he was a signatory.
[citation needed] Cox has completed projects and made presentations in the United States, Canada, Western Europe, Australia, and New Zealand.