One thing that the sustainability rankings didn’t take into account was cost of living in a particular city, and perhaps rightly so. But cost of living is likely to have more of an effect on where people choose to live than any sort of sustainability ranking. And it turns out that the Big Apple, while still the most expensive city in the US, is not such a heavyweight when compared to the rest of the world’s cities. In the Mercer Human Resource Consulting annual cost of living report, which you can download here, New York City ranked 13th, while Japan’s top two cities, Tokyo and Osaka, grabbed the top two world slots.