ESI ThoughtLab, a branch of economic consulting firm Econsult Solutions, has announced a new effort to study the return on investment of smart city programs across the world. Sponsored by groups like Accenture, General Motors, CBRE, and Oracle, the group is focusing on how the cities of the future can use sensors, data, and analysis to help fully realize the beenfits of working and living in a city. The new effort will be a follow-up to research released late last year by the group on building sustainable business and financing plans for smart cities. In Smarter Cities 2025, ESI ThoughtLab surveyed government leaders in 136 global cities, as well as 750 businesses and 2,000 citizens in 11 cities deemed representative of smart cities at large. They find that smart city investments have the potential to catalyze economic growth, although social and political challenges remain.