“…This type of regularity has been tested for cities in various countries, including, among others, China (Song & Zhang, 2002), France (Guérin-Pace, 1995), Germany (Giesen et al, 2010), Greece (Petrakos, Mardakis, & Caraveli, 2000) and the United States (Black & Henderson, 2003;Eeckhout, 2004;González-Val, 2010). Applications of Zipf's law are also observed using data different from city level.…”