With many of the big global cities struggling with infrastructure problems, rising wages and high office and land costs, investors are increasingly looking to smaller second- and third-tier cities in which to base themselves. But where are the emerging urban areas that are posing a threat to their larger counterparts?

Leading officials were out in force at the European Bank for Reconstruction and Development annual meeting in the Georgian capital of Tbilisi in May. Natasha Turak caught up with the finance ministers of Ukraine, Moldova and Latvia.

Apollo Tyres has extended beyond its traditional India base in recent years, through Europe and with ambitions towards the Middle East, Africa, south-east Asia and Latin America. Natasha Turak talks to the company's chief executive, Neeraj Kanwar.

The distinctly different cities of Rouen and Calais in northern France are working to improve their investment climates, with a focus on transport and logistics infrastructure. 

Edinburgh's global reputation as an innovative city has been enhanced in recent years by a number of digital and financial technology companies either launching within its boundaries or choosing to locate there. Natasha Turak looks at the secrets behind the Scottish capital's success. 

With increasing demand for IT storage, the data centre industry is growing fast and seeking out locations in cold climates that offer cheap, renewable energy and a reliable power supply – all attributes northern Europe possesses in abundance.