You may be thinking of Richard Florida - <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Richard_Florida" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Richard_Florida</a> - he talked about economic megaregions in his book &#x27;The Rise of the Creative Class&#x27;.