“What makes a great city? It is a pressing question because by 2030, 5 billion people—60 percent of the world’s population—will live in cities, compared with 3.6 billion today, turbocharging the world’s economic growth. Leaders in developing nations must cope with urbanization on an unprecedented scale, while those in developed ones wrestle with aging infrastructures and stretched budgets. All are fighting to secure or maintain the competitiveness of their cities and the livelihoods of the people who live in them. And all are aware of the environmental legacy they will leave if they fail to find more sustainable, resource-efficient ways of managing these cities.To understand the core processes and benchmarks that can transform cities into superior places to live and work, McKinsey developed and analyzed a comprehensive database of urban economic, social, and environmental performance indicators. The research included interviewing 30 mayors and other leaders in city governments on four continents and synthesizing the findings from more than 80 case studies that sought to understand what city leaders did to improve processes and services from urban planning to financial management and social housing. The result is How to make a city great, a new report arguing that leaders who make important strides in improving their cities do three things really well..”