Nestle has set out a clear growth trajectory. Across its global operations, the world's largest food group aims to deliver 5-6% organic revenue growth. At the same time, Nestle has targeted improved operating margins and higher underlying earnings. And key to the "Nestle Model" is the fact that the company believes it can achieve this year-in, year-out, for the foreseeable future. Katy Askew spoke to Nestle group chief executive Paul Bulcke to find out how.