Cities are the key to our productivity | Source: Flickr/mugley Read: The article in the Conversation by Professor Christopher Findlay published on 28 August. Just follow the link: http://theconversation.com/a-more-sustainable-australia-lets-get-creative-about-productivity-12459 The Conversation is an independent source of news and views, sourced from the academic and research community and delivered direct to the public.